1958 Bulletin 47, United States National Museum. 



of dorsal; caudal truncate, slightly rounded when spread, its length 1* to 

 If in bead, its rays twice forked; pectorals reaching to or nearly to front 

 of anal; ventrals varying in length, not quite reaching vent in any of our 

 specimens; pectoral rays air simple; dorsal and anal rays all simple, 

 except the last, which is usually divided to the base in the former, and 

 sometimes divided in the latter. Head and body mottled or spotted above, 

 uniformly light brown, the darker markings on back often arranged as 6 

 cross bars, of which 2 are below spinous dorsal, 3 below soft dorsal, 

 and 1 on caudal peduncle, these usually broken up into spots or reticula- 

 tions, and often obscure, sometimes wanting; usually a light bar down- 

 ward and backward from eye ; rays of dorsals, pectorals, and caudal crossed 

 with series of dark blotches ; ventrals and anal light, very obscurely barred 

 with darker. This species was very abundant in the small streams pass- 

 ing through the village of Iliuliuk, Unalaska, living both in the upper, 

 strictly fresh- water portion of the stream, and in the lower, more or less 

 brackish part. A specimen transferred to the salt-water aquarium on the 

 Albatross seemed to suffer no inconvenience from the change of water, and 

 lived for several days. This is probably the Uranidea microstoma of Lock- 

 ington, based on specimens collected near St. Paul, Kadiak, and consid- 

 ered by the describer to be identical with other specimens examined by 

 him from the Aleutian Islands. Four specimens were collected by us May 

 26, 1889, in a small stream entering Departure Bay, Vancouver Island. 

 These exhibit perfectly the differences separating Coitus aleuticus from its 

 nearest ally, Coitus philonips. (Gilbert.) 



Uranidea microstoma, LOCKINGTON, Proc. TL S. Nat. Mus. 1880, 58, St. Paul, Kadiak Island 

 (Coll. W. J. Fischer) ; not Coitus microstomus, HECKEL, a European species. 



Cottus aleuticus, GILBERT, Kept. TJ. S. Fish Comm. 1893 (1896), 418, streams of Unalaska; 

 also in Departure Bay, Vancouver Island. (Coll. C. H. Gilbert). 



2329. COTTUS MINUTUS, Pallas. 



Head 3|. D. VII, 18; A. 13; C. 13; P. 14; V. 2. Head large, conic, the 

 upper jaw longer, the teeth very slender; eyes small, near together; pre- 

 opercle with an incurved spine on each side, its lower margin subdentate; 

 the head otherwise unarmed; body terete, thick anteriorly, tapering 

 behind; the lateral line unarmed. Color pale, dotted with large dusky, 

 irregular black spotvS on the back; fins all variegated, the pectorals trans- 

 lucent, with rows of dusky spots; veutraLs white, with dusky rings; 

 second dorsal variegated; anal dotted with dusky, caudal with dusky 

 bands; body smooth. Island of Talek, near Tauisk, Sea of Okhotsk; 

 known from a dried specimen 3 inches long, and a drawing. (Pallas.) 

 Evidently close to Cottus aleuticus, but not to be identified without new 

 material from Siberia, (minutus, very small.) 



Cottus ininutus, PALLAS, Zoogr. Kosso-Asiat., in, 145, 1811, Talak Island, Sea of Okhotsk. 

 (Coll. D. D. Merk). 



2330. COTTUS BELDINGII, Eigenmann & Eigenmann. 



Head 2f to 4 ; depth 4 to 5. D. VI to VIII, 15^ to 18 ; A. 11 to 13 ; V. I, 4. 

 Head rather short and broad, the profile convex, more steep from eye for- 



