172 A REVISION OF THE ASTACID.E. 



40. Colorado. — One species, G. Diogenes, from Clear Lake. I Jo not know in what part 



of the State this is. 



41. New Mexico Terbitoky. — None. 



42. Arizona Territory. — None. 



43. Utah Territory. — One species, Astacus Gambclii, from Ogden Eiver, Ogden. 



44. Nevada. — None. 



45. Idaho Territory. — One species, A. Gambelii, from Fort Hall on the Snake River, 



and from the west side of Teton Basin. 



46. Washington Territory. — Four species: A. Klamathensis, A. leniusculus, A. Trow- 



bridgii, and A. nigrcscens. 

 A. Klamathensis from the section east of the Cascade Eange, at Fort Walla Walla, 



Wenas Valley, and Spokane Falls (upper part of the Columbia Eiver and 



tributaries). 

 A. leniusculus from the lower part of the Columbia Eiver and Paget Sound. 

 A Trowbridgii. Lower part of Columbia Eiver, near Astoria ; streams running 



into Shoalwater Bay. 

 A. nigrcscens. Fort Steilacoom on Puget Sound. (See page 135.) 



47. Oregon. — Three species: A. Klamathensis, A. leniusculus, and A. Trowbridgii.. 



A. Klamathensis. Klamath Lake ; Sikan Creek ; and Des Chutes Eiver. 

 A. leniusculus. Lower part of the Columbia Eiver. 

 A. Trowbridgii. Columbia Eiver near Astoria. 



48. California.* — Two species : A. Klamathensis and A. nigrcscens. Perhaps also 



A. Gambclii. (See page 137.) 

 A. Klamathensis in Klamath Lake on the northern border of the State. 

 A. nigrcscens from the neighborhood of San Francisco. 



49. Alaska Teruitory. — One species, A. nigrcscens, from Oonalaska Island. 



50. Dominion of Canada. — Four species: Cambarus Bartonii (including var. robusta), O. 



argillicola, C. propinquus, and Astacus Klamathensis. C. Diogenes, which occurs 

 at Detroit, Mich., will doubtless be found on the Canadian side of the river. 



C. Bartonii. St. John, Prov. New Brunswick ; Montreal, Prov. Quebec ? 



C. Bartonii, var. robusta. Toronto and Weston, Prov. Ontario. 



C. argillicola. Toronto, Prov. Ontario. 



0. propinquus. Montreal, Prov. Quebec; Toronto, Prov. Ontario. 



A. Klamathensis. Streams east of Cascade Mountains, Prov. British Columbia. 



51. Mexico. — Four f species : C. Wiegmanni, Mexicanus, immunis, and Montezumce. Hut 



little is known concerning the distribution of these species in Mexico. The 

 only specimen of C. Mexicanus which I have seen came from Mirador. The 

 locality given by Saussure for C. Aztccus (= 0. Mexicanus '.) is "Tomatlan, 

 dans les Terres-Chaudes." Von Martens records the same species limn Puebla. 

 C. iminunk has been found at Orizaba, 0. Montezumce in the neighborhood of 

 the city of Mexico, at Puebla, Parras in the State of Oohahuila, and at Mazat- 

 lan on the Pacific coast. A mutilated specimen, probably C. Wiegmanni,m 

 the U. S. National Museum, comes from the Isthmus of Tehuantepec. 



In tin- D S. National Museum there is a small specimen of Cambarus obscurus labelled "California" 

 (No. 2531). The locality i> probably erroneous. 



f fVce species, if C. izlecui Saussure be distincl from C. Mexicanus Erichson. (See page 51.) An uu- 

 described species belonging to the Parastacinte was collected bj John Xantns al Colima, mi the west coast. 

 The is theonlj Parastacine yei discovered north of the equator. 



