ere. xt PROCEEDINGS OF THE NATIONAL MUSEUM. 624 
pair of legs, in the presence of a flattened tubercle on the basal segment 
of the fourth pair of legs, in the shorter metacarapace, broader areola, 
long spiny telson, etc. The male appendages are similar to those of 
C. fallax Hag., as are also the tubercles on the basal segment of the 
fourth and fifth pairs of legs. More specimens of the three related 
species C. alleni, C. evermanni, and C. wiegmanni are much needed in 
order to elucidate the structure of the female and the two forms of the 
male. 
Cambarus barbatus Fax. 
Astacus penicillatus Le Conte, Proc. Acad. Nat. Sci., Phila., vi, 1855, p. 401, 
(nec Olivier, 1791). : ‘ 
Cambarus penicillatus Hagen, Ill. Cat. Mus. Comp. Zoél., No. 111, 1870, p. 53. 
Faxon, Proc. Amer. Acad. Arts and Sci., xx, 1884, p. 138. Jd., Mem. Mus. 
Comp. Zo6l, x, No. 4, 1885, p. 36. 
Additional locality: Escambia River at Flomaton, above Pensacola, 
Florida. D. S. Jordan, B. W. Evermann, and C. H. Bollman (M. C. 
Z.). One male, form I; five females, five young. The annulus ven- 
tralis of the female is divided by a deep, longitudinal furrow into two 
prominent tubercles, each of which is denticulate. The inner margin 
of the hand is serrate, but not bearded as in the male. Length, 
60™", After examining these undoubted specimens of Le Conte’s 
Astacus penicillatus I am confident that the second-form males and the 
females from Charleston, South Carolina, referred to this species by 
Hagen (op. cit., p. 54; cf. Faxon, Mem. Mus. Comp. Zodl., x, No. 4, p. 
37) belong to some other species. 
Following the code of nomenclature adopted by the American Orni- 
thologists’ Union* (canon XXXII, p. 47), Le Conte’s specific name peni- 
cillatus must be rejected, since it had been used previously by Olivier 
(Encye. Méth., Hist. Nat. des Insectes, v1, 1791, p. 343), in combination 
with the same generic name, for another animal (Palinurus penicillatus 
of recent authors). 
Cambarus pellucidus (Tellk.). 
This species has been reported from the following caves in Indiana, 
besides the Wyandotte and Bradford Caves; caves at Clifty, Bartholo- 
mew County (Dr. John Sloan); Mayfield’s Cave, near Bloomington, 
Monroe County (C. H. Bollman).t These caves are in the White River 
drainage. For further remarks on C. pellucidus see below under 
C. setosus. 
Cambarus simulans Fax. 
Additional locality: Tributary of Medicine River, Barber County, 
Kansas. Messrs. Williams and Cragin (M. C. Z.). 
* The Code of Nomenclature and Check- List of North American Birds adopted by the 
American Ornithologists’ Union; being the report of the committee of the union on 
classification and nomenclature, New York, 1886. 
t Packard, Mem. Nat. Acad. Sci., Vol. 1x, No. 1, p. 16. 
