X 3544 SUBSPECIES OF CAMBARUS LONGULUS — JAMES 19 



Katios of measured characters of C. I. chasmodactylus are as follows: 



Type-locality. — "East Fork of the Greenbrier River 9.7 mi. W. 

 of Virginia State line on U.S. Hwy. 250, Pocahontas Comity, West 

 Virginia [map 2, no. 263]. Here the river is between 50 and 100 feet 

 in width and up to 3 feet in depth. Its slightly clouded water 

 flows sluggishly to moderately over tilted bed rock strata on which 

 are strewn many stones and a considerable amount of silt. The 

 crayfish are abundant and lie concealed beneath the loose rocks" 

 (Hobbs, pers. comm.). 



Disposition of type. — The holotype male (USNM 115513), 

 allotype female (USNM 115514), and the morphotype male (USNM 

 115516) are deposited in the U.S. National Museum. Of the remaining 

 161 paratypes (USNM 115515), 17 males. Form I, 5 males. Form II, 

 16 females, 3 juvenile males, and 2 juvenile females are also in the 

 U.S. National Museum; 7 males. Form I, 5 males. Form II, and 1 

 female are in: (a) Museum of Comparative Zoology, Harvard; (b) 

 the collection of G. H. Penn, Tulane University; (c) the collection of 

 Alejandro Villalobos, Institute de Biologia, Mexico, D.F.; and (d) 2 

 males, Form I, 2 males, Form II, 2 females, and 1 juvenile male are 

 in the collection of the author at the University of Bridgeport, Bridge- 

 port, Conn. 



Remarks. — Ortmann (1931, p. 120) was aware of the differences 

 between C. I. longulus and C. I. chasmodactylus and wrote that in those 

 "specimens from the New River drainage . . . the moveable finger 

 may be over twice as long as the inner margin of the palm." This 

 has been a completely reUable characteristic for distinguishing aU the 

 normal (chelae unregenerated) specimens I have seen. 



On the basis of Faxon's work (lSS5a, pp. 60, 61; 1890, p. 623), I 

 suspect that Hagen's "Greenbrier River" record (1870, p. 76) is C. I. 

 chasmodactylus, but I do not have sufficient information to synony- 

 mize it. Fiu"ther investigation may identify the above as well as 

 Faxon's records of "Reed Creek, West of Wytheville, Wythe Co., 



