CRAYFISHES — HOBBS, HOLT, AND WALTON 



53 



and median teeth; prosomites not raised; spermiducal gland with 

 deferent lobes; prostate shorter than spermiducal gland and histo- 

 logically similar; relatively large, stout (to about 3.5 mm in length). 

 Range. — Known only from the Mountain Lake area, C. branchi- 

 ophila has been found in the major streams of all the drainage systems 

 of the area. 



OL 



b 



db 



Figure 14. — Cambarincola branchiophila, lateral views: a, male reproductive system; 

 b, jaws. En face view: c, jaws, upper uppermost. (Abbreviations: b=bursa; dd= 

 deferent duct; dl=deferent lobe; ed=efferent duct; f=funnel; pr=prostate; sg= 

 spermiducal gland.) 



Specimens examined. — More than 150 specimens in 31 collections 

 from the following stations: 15, 18, 20, 24, 29, 43, 55, 57, 58, 63, 

 65-67, 72, 73, 75, 79, 81, 86-93, 97, 104, 112, 116, and 126. Elevations 

 range from 427 to 762 m. 



Hosts and associates. — Cambarincola branchiophila was associated 

 with Cambarus acuminatum at stations 20, 29, 87-93, 112; with C. b. 



244-775—67- 



