140 PROCEEDINGS OP THE AMERICAN ACADEMY 



is published, one may well hesitate to admit the Carniola Cam- 

 harus into the list. 



Cambarus Sttgius, Bundy, Bull. 111. Mus. Nat. Hist., No. I. 

 p. 3, 1876, Trans. Wis. Acad. Sci,, V. 180, 1882, Geol. Wis., Surv. 

 1873-1879, I. 402, 1883, a species founded on mutilated speci- 

 mens (the fourth thoracic legs of the males being lost), is indeter- 

 minable. It is said to be " closely related to C. aciitus, but may 

 be at once separated by the shorter hands, — similar to those of 

 C.propinquus, — and the non-tuberculated annulus of the female." 

 Shore of Lake Michigan, Racine, Wis. 



16. Cambarus simulans. 

 Camharus simulaiis, Faxon, supra, p. 112. 

 Hab. Texas, Kansas. 



17. Cambarus ad vena. 

 Astacus advena, Le Conte, op. cit., p. 402. 1855. 

 Cambai'us Carolinus, Hagen, op. cit., p. 87, PI. I. figs. 51-54, 



PI. III. fig. 165. 1870. 



Camharus advena, Plagen, op. cit., PI. III. fig. 164, PI. VII. 

 1870. 

 '' jf / The descriptions of G. advena and G. Garolinus in Hagen's 

 monograph are accidentally transposed, so that they do not agree 

 with Hagen's types in the Museum of Comparative Zoology. 

 A full figure of Le Conte's species is given as G. advena on Plate 

 VII.,* and the antennal scale, spine of the second segment of the 

 antenna, and ei^istoma (from Le Conte's type in the Philadelphia 

 Academy) on PI. III. fig. 1 64. The male appendages, antennal 

 scale, and epistoraa are figured on Pi. I. figs. 51-54, PL III. fig. 

 165, as G. Garolinus. 



18. Cambarus Carolinus. 

 ? Astacus ( Gambarus) Garolinus, Erichson, op. cit., p. 96. 1846. 

 Gamharus advena, Hagen, op. cit., p. 86, Pi. I. figs. 90-92. 



1870. 



Gamharus Carolinus, Hagen (as determined by examination of 

 his type specimen !). 



Hab. South Carolina. 



For the transposition of the descriptions and part of the fig- 

 ures of G. advena and G. Garolinus in Hagen's Mouogi'aph, see 

 above. Hagen's type of G. Garolinus, labelled, " Gamharus Garo- 



* This figure represents a. female (M. C. Z., No. 282), not male, as stated on 

 tlie plate and in the text. 



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