622 NORTH AMERICAN ASTACID^ — FAXON. 



Cambarus gracilis Buudy. 



Additional localities : York, Clark County, Illinois, H. G. Hodge 

 (U. S. N. M.) ; Labette County, Kansas, W. S. Newlon (M. C. Z.). 



Cambarus bartonii (Fab. ). 



Additional localities: St. John Eiver, just above Grand Falls, New 

 Brunswick, W. P. Gauong (M. C. Z.) ; head of Kennebec River, outlet 

 of Moosehead Lake, Maine, Edwin Faxon (M. C. Z.) ; Shenandoah 

 Eiver, Waynesborough, Virginia, D. S. Jordan (IT. S. F. C.) ; Peak 

 Creek, Pulaski, Virginia, D. S. Jordan (U. S. F. C.) ; Swannanoa 

 Eiver, Black Mountain, North Carolina, D. S. Jordan (U. S. F. C.) j 

 Blooinington, Indiana, W. S. Blatchley (M. C. Z.). Prof. D. S. Jordan 

 informs me that he has found Cambarus {G. bartonii, doubtless,) in a 

 tributary of the Housatonic Eiver, Berkshire County, Massachusetts. 

 It had been known previously in that county only from Williamstown. 

 With reference to the distribution of G. bartonii in the Province of 

 Quebec and in New Brunswick Mr. W. F. Gauong has called my atten- 

 tion to the fact that it was recorded by Dr. Eobert Bell,* as long ago 

 as 1859, as abundant in the Eestigouche, Matapediac, and Metis Eivers. 

 Dr. Bell also found one specimen just below the high falls of the 

 Ouiatchouan, a stream which empties into the south side of Lake St. 

 John in Quebec. In 1865 Prof. H. Y. Hind* mentions a Cambarus (doubt- 

 less G. bartonii) in the Upsalquitch, a tributary of the Eestigouche. 

 Mr. Ganong* himself has lately published a paper on the distribution 

 of G. bartonii in New Brunswick, in which attention is drawn to its 

 occurrence at many points in the St. John Eiver and its affluents, from 

 Grand Falls to Fredericton, and additional testimony is given as to its 

 presence in the Eestigouche and Upsalquitch. Mr. Ganong was in- 

 formed that it was very abundant in the southwest Miramichi also, but 

 he searched for it without success in the St. Croix. The northern limit 

 of its distribution, then, so far as known, is the Ouiatchouan, Metis, 

 and Matapediac Eivers, in the Province of Quebec, while the eastern 

 limit is the Miramichi, New Brunswick. 



Specimens of G. bartonii from Bloomington, Indiana, like all that I 

 have seen from that State, are a smooth form, with very narrow areola 

 and obsolete internal basal carpal spine. 



Cambarus bartonii robustus (Gir.). 



Additional locality: Wytheville, Wythe County, Virginia. Col. M. 

 McDonald (U. S. F. G). 



* On the Natural History of the Gulf of St. Lawrence, and the Distribution of the 

 Mollusca of Eastern Canada. By Robert Bell, Jr., Canadian Naturalist and Geolo- 

 gist, iv, 1859, p. 210. 



* Prelim. Rep. Geol. New Brunswick, p. 130. 



* The Crayfish in New Brunswick. By W. F. Ganong. Bull. Nat. Hist. Soc. New 

 Brunswick, No. VI, pp. 74, 75, 1887. See also The Crayfish in the Atlantic Provinces. 

 [ByW. F. Ganong.] The Educational Review, in, 95, St. John, N. B., Nov. 1, 1889. 



