356 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM.  [1885. 
Aythya collaris. 616. Fulix collaris. 
Ocecanodroma homochroa. 725. Cymochorea homochroa. 
Colymbus nigricollis californicus. 733a. Dytes nigricollis californicus. 
Xanthocephalus xanthocephalus (Bp.). 260. Xanthocephalus icterocephalua. 
Scolecophagus carotinus (Miill.). 273. Scolecophagus ferrugineus. 
Empidonax fulvifrons pygmaeus (Coues). 329.,Empidonax fulvifrons pallescens. 
Dendroica vigorsit (Aud.). 111. Dendreca pinus. 
Limosa limosa (Linn.). [546.] Limosa egocephala. 
Tryngites subruficollis (Vieill.) 556. Tryngites rufescens. 
Grus mexicana (Miill.). 583. Grus canadensis (Linn.). 
Tringa couesi. 531. Arquatella couesi. 
Sula sula (Linn.). 652. Sula leucogastra (Bodd.). 
A LIST OF THE ASTACIDZ IN THE UNITED STATES NATIONAL 
MUSEUM. 
By WALTER FAXON. 
(Corrected to July 1, 1885.) 
1. Astacus fluviatilis Rond. 
3229.* Central Germany. 
4137. Germany. 69. 
4134. Bohemia. Dr. Hessel. 47. 
2. Astacus pallipes Lereb. 
10128. Montagny, Lake Neuchatel, Switzerland. Mus.Comp.Zoél. 13,19. 
3. Astacus torrentium (Schrank) Wolf. 
4861. Bohemia. 
4. Astacus Gambelii Ag. 
2536. Fort Hall, Idaho. 
3251. Teton Basin, Idaho. 
3227. Mouth of Yellowstone River. 
3249. Mouth of Yellowstone River. 
4396. Willow Creek [Wyoming Territory 7], Dr. Curtis, October 29, 1872. 
Young. 
4855. Santa Barbara, Cal. Dr.Webb. 62,19. 
5. Astacus nigrescens Stm. 
4974. San Francisco, Cal. Mus, Comp. Zoél. 19. 
2267. California. 
2526. Fort Steilacoom, Wash. (Differs from the typical form. See Faxon, 
Revision of the Astacidz). 
8954. Oonalaska, Alaska. W.H. Dall. 1¢. 
6. Astacus Trowbridgii Stm. : 
2080. Astoria, Oreg. Lieutenant Trowbridge. Types. 24, 29. 
7. Astacus leniusculus Dana. 
2019. Columbia River. U.S. Explor. Exped. Type. 
2161. Locality nnknown. 
8. Astacus Klamathensis Stm. 
3881. Fort Walla Walla, Wash. Capt. Charles Bendire. 34,29. 
4037. Fort Walla Walla, Wash. Capt. Charles Bendire. 8¢, 129. 
*These numbers refer to the catalogue of Crustacea of the National Museum, in 
which the specimens are registered. 
