1 NUMBER 224 MAY 29, 1931 OCCASIONAL PAPERS OF THE MUSEUM ZOOLOGY OF UNIVERSITY OF MICHIGAN ANN ARBOR, MICHIGAN PUBLISHED BY THE UNIVERSITY THREE NEW CRAYFISHES (CAMBARUS) PUEBLA AND MISSOURI FROM BY EDWIN P. CREASER ONE of the new species described below, Cambarus contrerasi, was obtained in the state of Puebla, Mexico, during the course of a zoological expedition conducted by Dr. Myron Gordon and the writer in the late spring- of The other two new species, Cambarus hubbsi and Cambarus peruncus, were obtained by E. B. Williamson and the w y riter during a zoological expedition in the Missouri Ozark Mountains in the summer of Cambarus (Cambarus) contrerasi, new species Pigs. 1-6 Male form I. Antennae short, length scarcely exceeding carapace. Antennal scale (Fig. 4) broad, widest anteriorly. Terminal setae nearly half as long as antennal scale. Terminal spine short. Rostrum about one-fourth total length of cephalotliorax, slightly excavate above with a faint median carina on anterior half. Margins entirely raised, gently curved near apex to form acumen, lateral spines of rostrum absent. Postorbital ridges terminating bluntly. Cephalic groove interrupted on the sides. Brancliiostegal spines pres-
2 2 Eclwin P. Creaser ent, lateral spines of cephalotliorax absent. Areola narrow, less than 1 mm. in width in specimen 54.6 mm. long. Cephalothorax evenly rounded, punctate, laterally granulate toward anterior margin. Chelae moderately broad, scabrous, with scale-like tubercles increasing in number and size along inner margin of palm. Fingers ribbed above, immovable one with tubercle near base on margin opposed to dactylus. Carpus three-fourths as long as merus, with spine on inner margin and with several below. Merus with one spine and several small tubercles above, and with biserial rows of spines below. Ischiopodite of third and fourth walking legs with hooks (Fig. 6). Coxopodites of third, fourth, and fifth walking legs with protuberances, that of the fourth the largest and hook-shaped. First abdominal appendages (Fig. 3) reaching nearly to coxopodites of first walking legs. Apex of male appendage (Figs. 1-2) with an anterior crescentric horny wall, and with a triangular tooth nearly as high as the anterior crescentic wall lying in its cavity. Inner margin of outer part with a small elevation and a blunt tooth posterior to the crescentric wall. Inner part of appendage soft, not exceeding outer part, terminating in a moderately acute spine. Male form II. Hooks on ischiopodites of third and fourth walking legs reduced in size. Tubercles on coxopodites of third, fourth, and fifth walking legs present but reduced. First abdominal appendage (Fig. 5) with apical crescentric wall thicker than in Form I. Inner margin of outer part with a rounded tubercle. Inner part of appendage terminating bluntly. Female. Unknown. Color. Greenish brown, with orange chelipeds. Sex Abdomen Measurements in mm. Anterior cephalotliorax Posterior cephalotliorax Anterior width in cephalothorax Male I Male II
3 Three New Crayfishes 3 The measurement of the anterior width in the cephalothorax is the number of times the distance between the peduncles of the antennal scales is contained in the length of the cephalothorax. Type locality. Tributary of the Rio Cazones near Agua Fria, 12 miles south of Miahuapan, State of Puebla, Mexico. This collection was made near the road which extends from Miahuapan to Villa Juarez by Myron Gordon, Richard Ostos," and the writer on May 11, This small stream flowed slowly through a rather low T jungle. The water was clear and quite cool. Algae were very abundant on the rocks which protruded above the mud and gravel bottom. In addition to the two specimens of crayfish, we obtained here several specimens of the shrimp Macrobrachiiim olfersii. The male type (Form I) is deposited in the crustacean collection of the University of Michigan Museum of Zoology as Cat. No The male paratype (Form II) has been deposited in the United States National Museum. This species is named for the eminent carcinologist, Professor Francisco Contreras, Jefe del Museo Nacional de Historia Natural, Mexico, Distrito Federal. Relationships. The present species is doubtless related to Cambarus bouvieri (Ortmann, 1908, pp ), which was obtained near Uruapan, State of Michoacan, Mexico. These two species are the only ones in the genus possessing a crescentric terminal protuberance on the male copulatory appendage. The differences between these two species may be briefly noted as follows: C. contrerasi has tubercles on the coxopodites of the fourth and fifth pereiopods which are lacking in C. bouvieri. The male copulatory appendage in C. contrerasi has a terminal spine on the inner part of the appendage, which is absent in C. bouvieri. C. contrerasi, moreover, has hooks on the third and fourth pairs of pereiopods, while the related species has hooks on only the third pereiopods. The hooks on the third pair of pereiopods in C. contrerasi are greatly reduced.
4 4 Eclwin P. Creaser This species may possibly have affinities with those species which Ortmann (1905, p. 102) differentiates as the G. alleni group. The male copulatory appendages in this group are, with the possible exception of C. alleni, very different from those found in the species C. bouvieri and C. contrerasi. The G. alleni group is very much in need of a more elaborate study. Cambarus (Bartonius) hubbsi, new species Figs Male form I. Antennae shorter than body. Antennal scale (Fig. 10) exceeding rostrum, truncate with large terminal spine directed slightly outward, inner margin of scale almost parallel with outer throughout its entire length. Eye small, pigment area reduced. Rostrum short, about one-fifth total length of cephalotliorax, flat, scarcely excavated, sides convergent, with horny, blunt, lateral and terminal spines. Postorbital ridges grooved with blunt anterior spine. Cephalic groove not interrupted on the side. Lateral spine of cephalotliorax absent. Branchiostegal spine absent. Areola moderately broad, 3 mm. wide in largest specimen, 62.8 mm. long. Cephalotliorax ovate, conspicuously flattened above, granulate <on the sides, and punctate above except in gastric region; slightly longer than abdomen. Anterior section of cephalotliorax one and one-half times as long as posterior section. Chelae moderately broad, swollen, coarsely punctate above and below. Fingers slightly agape, meeting only at the horny tips, opposed edges with rounded tubercles. Carpus with a single spine on median internal margin and a blunt nodule on ventral anterior margin. Merus with dorsal tubercle and a uniserial row of spines below r. Usual outer row represented by a single spine. Third walking legs with large hooks. Copulatory appendage (Fig. 9) reaching to base of third walking leg. Outer part of appendage (Figs. 7-8) horny, blade-like, curved, directed outward. Inner part separated from outer part, fleshy, swollen, tapering, and directed slightly downward.
5 Three New Crayfishes 5 Male form II. Tips of copulatory appendage (Fig. 12) adjacent. Outer tip slightly exceeding the inner (lower) one. Hooks on third walking legs reduced in size. Female. Annulus ventralis (Fig. 11) broad, posterior margin raised. Sinus curved to right as viewed from ventral side. Fossa shallow, following sinus and extending to anterior margin. Color. A uniform dark brown. Sex Abdomen Measurements in mm. Anterior eephalothorax Posterior eephalothorax Anterior width in eephalothorax* Male I Male II Male II Female Female Female Female Female Female * For explanation of this measurement see p. 3. Type locality. Little Creek, tributary to the St, Francis River, one mile northeast of Chloride, Iron County, Missouri. This collection was made by E. B. Williamson and the writer on August 13, Distribution. In addition to the type locality this species is known from Ruble Spring Branch, one mile south of Chloride, Iron County, Missouri, and from the James River, one mile south of Galloway, Greene County, Missouri. Faxon (1885, p. 61) lists C. bartonii questionably from the Osage River, Missouri. If this locality is correct, the specimens, undoubtedly are referable to the present species. The male type, female allotype, and paratypes are deposited in the crustacean collections of the University of Michigan, Museum of Zoology. The catalogue numbers are: Male type.
6 6 Eclwin P. Creaser Form I, No from Little Creek; female allotype, No from Ruble Spring Branch; paratypes, No from Little Creek; paratypes, No from Ruble Spring Branch; and paratype, No from James River. Paratypes have also been deposited in the United States National Museum. This species is named for my friend Dr. Carl L. Hubbs. Six other ichthyologists have had species of Gambarus named in their honor. Crayfish are roaming the streams today bearing the names of Hay, Evermann, Putnam, Meek, Girard, and Jordan. Ecology. My first acquaintance with C. hubbsi came quite unexpectedly while collecting w T ith E. B. "Williamson on the Ruble Spring Branch, one mile south of Chloride, Missouri. As we approached a pool in the stream bed, but a short distance from the bridge, Mr. Williamson observed some large crayfish which darted under a huge boulder and pile of brush. By dredging around with our hands w r e managed to dig a hole under the boulder. Repeated dips with a net secured five specimens. The next day in a small stream one mile northeast of Chloride we obtained three more. Still later we obtained a single specimen in the James River near Galloway, Greene County, Missouri. Like many others of the Bartonius group, G. hubbsi dredges a burrow under a large rock, or preferably a huge boulder. This species is apparently not very prolific for, although we worked for several hours in each of the various streams where it was found, w T e obtained only nine specimens. Relationships. The subgenus Bartonius (Ortmann, 1905, p. 97) contains six other species or subspecies which possess lateral spines on the rostrum. Three of these (C. hamidatus, G. setosus, and G. ayersii) are blind. The three other members (C. extraneus, C. jordani, and C. cornutus) differ from the present species in that each of them possesses lateral spines on the cephalothorax which are lacking in G. hubbsi. In Tennessee, G. extraneus inhabits the same general region as the blind species C. hamidatus. G. hubbsi inhabits the same
7 Three New Crayfishes 7 general region in Missouri as the blind species, C. setosus and C. ayersii. The discovery of this species would have interested the late Dr. Ortmann. In 1905 he wrote as follows: "C. hamulatus is found in a cave in eastern Tennessee, that is to say, right in the center of origin of the subgenus, while the other one, C. setosus, comes from a cave in Jasper County, Missouri (in the Ozark region). This is very remarkable, and very likely indicates, that the center of origin of the subgenus includes the Ozark Mountains.... Consequently, we are to regard C. setosus as the last remnant of the primitive forms of the subgenus surviving in the western extremity of the original home." Ortmann considered those species having lateral spines on the rostrum as the most primitive members of the subgenus Bartonius. The discovery of this new species completely substantiates Dr. Ortmann's view that the original home of this subgenus should include the Ozark region. Cambarus (Faxonius) peruncus, new species Figs Male form I. Antennae shorter than body. Antennal scale exceeding rostrum, moderately broad, broadest beyond the middle, terminal spine of medium size. Rostrum moderately long, more than one-fourth total length of eephalothorax, excavated, sides slightly convergent with moderately sharp lateral and terminal spines. Small branchiostegal spine present. Cephalotliorax with small lateral spines. Limits of areola poorly defined, about 2 mm. wide in specimen 55 mm. long. Cephalothorax round, polished, punctate except in gastric region, slightly granulate along anterior border. Chelae moderately broad, fingers slightly agape, conspicuously setose, without ribs. Carpus with a spine on anterior internal border and another and larger spine on median internal border. Ventral side of carpus with an anterior spine. Merus with a single spine above before the apex and with biserial row of spines below, the outer row represented by 2 spines and the inner by 5-6 spines. Ischiopodite of third and fourth
8 Edwin P. Greaser walking legs (Fig. 16) with hooks. Copulatory appendages (Figs ) very long, inner portion reaching to base of first walking legs when the abdomen is flexed. Outer part of appendage slender, tapering, and slightly curved posteriorly. Inner part of appendage shorter than outer, grooved throughout its length on anterior margin. Apex of inner part abruptly widened and recurved. Male form II. Hooks on third and fourth pereiopods reduced in size. Outer part of copulatory appendage (Fig. 13) thicker than in Form I. Inner part adjacent to outer part for most of its length. Inner part grooved on anterior margin at apex. Variations. One male specimen (Form I) has hooks on the second, third, and fourth pairs of walking legs. Female. Chelae smaller with fingers less agape than in male. Annulus ventralis (Fig. 17) with posterior margin elevated and produced posteriorly. Sinus irregularly curved on posterior margin, then abruptly turned to the left as viewed from ventral side. Fossa moderately shallow 7, extending almost to the depressed anterior margin of annulus. Color. Brown with mottlings or spots of a darker brown on chelae, abdomen, and cephalotliorax. Sex Abdomen Measurements in mm. Anterior cephalotliorax Posterior cephalotliorax Anterior width in cephalotliorax* Male I Male I Male I Male I Male I Male II Female Female Female Female Female * For explanation of this measurement see p. 3.
9 Three New Crayfishes 9 Type locality. Little Creek, tributary to the St. Francis River, one mile northeast of Chloride, Iron County, Missouri. This collection was made by E. B. Williamson and the writer on August 13, Distribution. In addition to the type locality this species was taken in Ruble Spring Branch, one mile south of Chloride, Iron County, Missouri. This stream is also a tributary to the St. Francis River. The type, allotype, and paratypes are deposited in the crustacean collections of the University of Michigan, Museum of Zoology. The catalogue numbers are as follows: Type male, Form I, No from Little Creek; allotype female, No from Little Creek; paratypes, No from Little Creek; paratypes, No from Ruble Spring Branch. Paratypes have also been deposited in the United States National Museum. Ecology. This species was found lurking under small rocks. C. hubbsi, C. virilis, and C. diogenes were obtained in the same stream with C. peruncus. Relationships. The present species is surely related to Cambarus hylas Faxon, This relationship is manifest in body form and coloration, but especially in the bizarre shape of the annulus ventralis, which is nearly identical in the two species. The differences between C. peruncus and C. hylas are as follows: The new species lacks the ribs or corrugations on the chelae which are present in C. hylas. C. peruncus has chelae which are less pilose than in the related species. The sexual appendages of the male are, moreover, noticeably different. The first form male appendage of C. hylas, here described for the first time, is as follows: Appendage long, extending to base of first pair of pereiopods. Outer part slender, tapering, and slightly recurved at the apex with a slight shoulder on the anterior margin. Inner part soft, shorter than outer part, and slightly flattened near apex, which is very slightly recurved. A fine series of this species is at my
10 10 Eclwin P. Creaser disposal from McKenzie Creek at Piedmont, Wayne County, Missouri. The presence of hooks on the third and fourth walking legs in C. peruncus is worthy of more than trivial consideration. C. peruncus, without question, is a member of the subgenus Faxonius as defined by Ortmann (1905, p. 97). The blind cave species, C. pellucidus, assigned by Ortmann (1905, p. Ill) to the subgenus Faxonius, also has hooks on the third and fourth walking legs. Ortmann argues that this condition must have arisen independently since the other members of Faxonius, without exception save for the present species, have only the third pair of legs bearing hooks. Faxon (1914, p. 415) lists C. pellucidus under the subgenus Cambarus. In any event we now have evidence with the discovery of C. peruncus of an independent acquisition (or a primitive retention of two pairs of hooks within the subgenus Faxonius. LITERATURE CITED FAXON, W A Revision of the Astacidae. Part 1. The genera Cambarus and Astacus. Mem. Mus. Comp. Zool. 10: No. 4, 1-186, 10 pi Notes on North American Crayfishes, Family Astacidae. Proc. U. S. Nat. Mus. 12: Notes on the Crayfishes in the United States National Museum and the Museum of Comparative Zoology, With Descriptions of New Species and Subspecies to which is appended a Catalogue of the Known Species and Subspecies. Mem. Mus. Comp. Zool. 40: No. 8, , 13 pi. ORTMANN, A. E The Mutual Affinities of the Species of the Genus Cambarus and their Dispersal over the United States. Proc. Amer. Philos. Soc. 44: , 1 pi Une ficrivisse Nouvelle du Mexique Cambarus (Cambarus) bouvieri now sp. Ann. Sci. Nat. 9: 7, EXPLANATION OF PLATES All figures drawn with the aid of a camera lucida. The stippled areas of the first form male copulatory appendages represent the extent of the corneacious part of the tip.
11 12 Eclwin P. Creaser.Fig. 1. Cambarus PLATE I contrerasi Outer lateral view of apex of first form male copulatory ap- X>endage. Fig. 2. Inner lateral view of apex of first form male copulatory appendage. Fig. 3. Outer lateral view of first form male copulatory appendage.
12 THREE NEW CRAYFISHES (CAMBARUS) PLATE III 2 3
13 Edivin P. Crcaser Cambarus PLATE II contrerasi Fig. 4. Antennal scale. Fig. 5. Outer lateral view of apex of second form male copulatory appendage. FIG. 6. Basal segments of third, fourth, and fifth pereiopods of male.
14 THREE NEW CRAYFISHES (CAMBARUS) PLATE II 5 6
15 16 Eclwin P. Creaser PLATE Cambarus III hubbsi Fig. 7. Outer lateral view of apex of first form male copulatory appendage. Fig. 8. Inner lateral view of apex of first form male copulatory appendage. Fig. 9. Outer lateral view of first form male copulatory appendage.
16 THREE NEW CRAYFISHES (CAMBARUS) PLATE III 9
17 18 Eclwin P. Creaser Fig. 10. Fig. 11. Fig. 12. PLATE IY Cambarus hubbsi Antennal scale. Annulus ventralis. Outer lateral view of second form male copulatory appendage.
18 THREE NEW CRAYFISHES (CAMBARUS) PLATE III
19 Edwin P. Greaser PLATE V Cambarus pertincus Fig. 13. Outer lateral view of second form male copulatory appendage. Fig. 14. Inner lateral view of first- form male copulatory appendage. Fig. 15. Outer lateral view of first form male copulatory appendage. Fig. 16. Basal segments of third, fourth, and fifth pereiopods of male. Fig. 17. Annulus ventralis.
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IDENTIFICATION OF ADULT CORIXIDS 25 THE IDENTIFICATION OF BRITISH ADULT SPECIMENS OF SIGARA LATERALIS (LEACH), SIGARA CONCINNA (FIEBER), CALLICORIXA PRAEUSTA (FIEBER) AND CALLICORIXA WOLLASTONI (DOUGLAS
Key to the Crayfish of South Carolina Arnold G. Eversole and Danny R. Jones Department of Forestry and Natural Resources Clemson University Clemson, South Carolina 29634-0315 Sponsor USDA Forest Service
Activity 7 It s all in the family Activity Identify members of the six butterfly families using your new skills. Science Connections Comparing Scientists see how things are alike and different by studying
Lesson 2 Crustaceans Objectives Students will identify physical characteristics common to crustaceans make comparison sketches of crustaceans Vocabulary crustaceans arthropods with hard shells mandibles
The Ohio State University Knowledge Bank kb.osu.edu Ohio Journal of Science (Ohio Academy of Science) Ohio Journal of Science: Volume 40, Issue 4 (July, 1940) 1940-07 The Soil as an Ecological Factor in
Name Class Date Chapter 18 Classification Using and Constructing a Dichotomous Key You may want to refer students to Chapter 18 in the textbook for a discussion of the classification system used in biology.
ZOOLOGISCHE MEDEDELINGEN UITGEGEVEN DOOR HET RIJKSMUSEUM VAN NATUURLIJKE HISTORIE TE LEIDEN (MINISTERIE VAN WELZIJN, VOLKSGEZONDHEID EN CULTUUR) Deel 59 no. 2 31 december 1984 ISSN 0024-0672 A NEW SPECIES
CORE STRENGTH EXERCISES The main muscles involved with Core Strength include muscles of the abdomen, hip flexors and low back postural muscles. It is important to maintain proper strength of these muscles
Outdoor Gyms Dulwich Park By Amala Onuora and Laura Harvey Things to consider before you use the equipment Check with doctor before exercising if you have not exercised for a while or have a heart condition
LESSON ASSIGNMENT LESSON 3 Positioning for Exams of the Trunk. LESSON ASSIGNMENT Paragraphs 3-1 through 3-12. LESSON OBJECTIVES After completing this lesson, you should be able to: 3-1. Identify specifications
Plastic Threads Technical University of Gabrovo Yordanka Atanasova Threads in plastic products can be produced in three ways: a) by direct moulding with thread punch or die; b) by placing a threaded metal
Physical Agility Test Preparation and Safety TT DD CC JJ J How to Prepare for the PAT Prior to taking the Physical Agility Test, applicants should seek medical advice from their physician. The day of the
P O L S K I E P I S M O E N T O M O L O G I C Z N E P O L I S H J O U R N A L O F E N T O M O L O G Y VOL. 75: 95-100 Bydgoszcz 31 March 2006 Orphinus (s. str.) mroczkowskii sp. n. from North Korea (Coleoptera:
The Lagotto is such a remarkable breed that those of us who have them love them dearly. Those of you who are just learning about the breed through reading about them, researching on the web, or meeting
1 Story -The life cycle of a shore crab Crabs live on rocky seashores and hide underneath rocks when the tide is low. Mating often occurs in spring and summer. The adult male and female come belly to belly
ACTA ENTOMOLOGICA MUSEI NATIONALIS PRAGAE Published 17.xii.2012 Volume 52 (supplementum 2), pp. 511 516 ISSN 0374-1036 A new species of Halystus from Socotra Island (Coleoptera: Curculionidae: Scolytinae:
Baby pig Designer : Ernestina Gallina www.pietrevive.it MATERIALS PAINTS: Black, white, brick, and burnt sienna BRUSHES: Medium and large flats, small round, liner, and script liner 1.Almost any smooth
Stretching Yoga - Morning Stretch Lie face up, arms by side, palms down Inhale, bring arms overhead & lift spine off the floor Point toes. Extend legs & arms away from each other Exhale, bring arms back
Case Studies Bridge Scour Inspection and Repair Edward P. Foltyn, P.E. Senior Hydraulic Engineer ODOT Bridge Unit 2013 PNW Bridge Inspectors Conference April 2013 REFERENCES Stream Stability at Highway
BIOL 2406 Fall 2011 Topographic Maps A topographic map is a two dimensional representation of a three dimensional land surface. Elevation or relief is shown through the use of contour lines that are continuous
Stark, B.P., I. Sivec, and T. Shimizu. 2012. Notes on Rhopalopsole Klapálek (Plecoptera: Leuctridae), with descriptions of three new species NOTES ON RHOPALOPSOLE KLAPÁLEK (PLECOPTERA: LEUCTRIDAE), WITH
FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK Volume 70 2009 pp. 219 224 Contributions to the knowledge of the scuttle fly fauna of Hungary (Diptera: Phoridae) G. D. LENGYEL Department of Zoology,
Precision Hand Cutting Tools & Pliers for Jewelry Artisans CUTTERS Tronex cutters are known worldwide to be the best cutters available. Count on excellent craftsmanship, performance and comfort. You won
14 Pierrepont Rd (617) 527-0667 Newton, MA. 02462 www.simplycircus.com firstname.lastname@example.org Everyday Stretches & Exercises This is a routine that emphasizes stretching and strengthening the muscles that
Vertebral Column and Upper Appendicular Skeleton The axial skeleton consists of 80 bones in the head and trunk of the human body. In this lab you will look at the vertebral column, just one part of that