184 A EEVISIOI^ OF THE ASTACID^. 



PLATE V. 



rig. 1. Cambarus cornutus Fax. Male, form I. Green River, Ky X 1 



" 3. The same. Side view of liead. 



" 3. Cambarus propiuquus, var. Sanboruii Fax. Male, form I. Carter Co., Ky. . . . X 2 



" 4. Cambarus forceps Fax. Male, form I. Lauderdale Co., Ala X 3 



" 5. Cambarus Putnami Fax. Male, form I. Grayson Springs, Ky. . . . . . X 2 



" 6. Cambarus compressus Fax. Male, form I. Lauderdale Co., Ala. . . . . X 4 



PLATE VI. 



Fig. 1. Astacus Klamathensis Stimps. Male. Fort Walla Walla, Wasbington Territory. . X 1 



" 2. The same. Male. Sikau Creek, Oregon XI 



" 3. Astacus (Cambaroides) Sebrenckii Fax. Female. X 3 



" 4. Astacus leuiusculus Dana. Male X 1 



PLATE VI L 



Fig. 1. Cambarus Sbufeldtii Fax. Female. New Orleans, La X 4 



Figs. 2-3»'. First abdominal appendages of male. 



" 2. Cambarus Blandingii Erichs. Trenton, N. J. Form I., outer side X 6 



" 2'. The same. Form I., inner side. X 6 



" 2". Tlie same. Form I., front X 6 



" 2«. The same. Form II., front X 6 



" 2"'. The same. Form II., imier side X 6 



" 3. Cambarus Hayi Fax. Form I., outer side X 6 



" 3'. The same. Form I., iuuer side X 6 



" 3". The same. Form II., outer side. X 6 



" 3"'. The same. Form II., inner side. . . X 6 



PLATE VIIL 



First abdominal appendages of male. 



Fig. 1". Cambarus pubescens Fax. Form II X 8 



" I". The same. Form II X 8 



" 2. Cambarus AUeni Fax. Form I X 6 



" 2'. The same. Form I X 6 



" 3. Cambarus simulans Fax. Form I X 6 



" 3'. Tile same. Form I X 6 



" 3". The same. Form 11 X 8 



" 3'^. The same. Form II X 8 



" 4. Cambarus gracilis Bcndy. Type. Form I. X 6 



" 4'. Tiie same. Form I X 6 



" 4". The same. Form I X 



" 5. Cambarus Cubensis Erichs. Form I X 12 



" 5'. Tlic same. Form I X 12 



■' 5". The same. Form II X 12 



" 5"'. The same. Form II X 12 



" C. Cambarus acuminatus Fax. Form II X 12 



" G'^. The same. Form II X 12 



" 7. Cambarus dubius Fax. Form I X 6 



'■ 7'. Tlic same. Form I X 6 



" 8. Cambarus I'hleri Fax. Form I X 8 



" 8'. The same. Form I X 8 



" 8». The same. Form II X 12 



" 8"'. The same. Form II X 12 



