634 NORTH AMERICAN ASTACIDE—FAXON 
the rostrum is even flatter than in the typical form, tapering, and fur- 
nished with minute ante-apical teeth. 
Astacus klamathensis Stimps. 
Additional localities: Sprague and Williamson’s Rivers, near Fort 
Klamath, Oregon. Dr. J.C. Merrill, U. S. Army (U.S. N. M.). “Eel 
River, Humboldt County, California. Teste W. N. Lockington.* A 
small specimen, 37™™ long, collected by Dr. Merrill in Klamath Lake, 
Oregon, is labeled “ Color in life, bluish green.” An adult collected 
by the same gentleman is accompanied by the following note: “ Color 
when fresh, bright red, lighter beneath ; large claws darker. Common.” 
Astacus nigrescens Stimps. 
‘‘This species appears to be found in most of the larger brooks of 
the central counties of California, such as the Alameda Creek, Alameda — 
County ; Coyote Creek, Santa Clara County, and San Joaquin Slough.” 
Lockington, l. ¢. 
*Remarks upon the Thalassinidea and Astacidea of the Pacific coast of North 
America, with description of a New Species. By W. N. Lockington. Ann. Mag. 
Nat. Hist., 5th series, Vol. 11, 1878, p. 303. 
MUSEUM OF COMPARATIVE ZOOLOGY, 
Cambridge, Massachusetts, January 1. 1890. 
