ZOOLOGY. 
355 
own spine being slender, serrated upon its edges, and extending beyond the tips of the ossa innominata. Posterior margin of 
caudal slightly emarginated. 
Syn.— Gasterosteus pugetti, Gkd. Proc. Acad. Nat. Sc. Philad. VIII, 1856, 135 .—Ib. Gen. Rep. Fishes, 92. 
Vast numbers of sticklebacks are found in the shallow fresh water streams near Fort Steila- 
coom. During severe droughts, some of the small brooks in that vicinity becoming dried up, 
multitudes of these little fish are found dead on the surface of the mud so recently submerged. 
Individuals of the species rarely exceed an inch and a quarter in length. 
AMBLODON GRUNNIENS, Rafin. 
Buffalo Perch; Grunting Perch, &c. 
Plate XXIII. 
Sp. Ch.—P rofile of the head depressed on the nape. Snout thick, blunt, and short. Posterior extremity of maxillary 
extending to a vertical line intersecting the anterior rim of the pupil. Extremities of pectorals almost even with the tips of 
ventrals, or else projecting slightly beyond them. First anal spine diminutive ; second one stout and well developed. Caudal 
fin posteriorly convex. Color bluish-gray, lighter beneath than above. Fins grayish-olive, and maculated. 
Syn. — Amblodon grunniens, Rafin. Ichthyol. Ohiens. 1820, 24.— Girard, Gen. Rep. Fishes, 96. 
Sciaena oscula, Lesu. in Journ. Acad. Nat. Sc. Philad. II, 1822, 252 ; plate xiii.— Kirtl. Rep. Zool. Ohio. 
168, 192. 
Sciaena grisea, Lesu. in Journ. Acad. Nat. Sc. Philad. II, 1822, 254. 
Corvina oscula , Cuv. & Val. Hist. Nat. des Poiss. V, 1830, 98.— Richards. Faun. Bor. Amer. Ill, 1836, 68.— 
DeKay, New Y. Faun. IV, 1842,73 ; plate xxi, fig. 63.— Storer, Synops. 1846, 67. 
Corvina grisea , DeKay, New Y. Faun. IV, 1842, 76. 
White perch of the Ohio, lake sheepshead, buffalo perch, grunting perch, 8fc., Vernacular. 
A single individual was obtained from Milk river, Nebraska. No notes were made of its 
habits. 
GUNNELLUS ORNATUS, Grd. 
Banded Mud-fish. 
Plate XXY&, Figs. 6 and 7. 
Gunnellus ornalus, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1854,149.— Ibid. Gen. Rep. Fishes, p. 116. 
Sp. Ch.—D orsal and anal fins contiguous to the caudal. Anal spines, two. Ventrals reduced to two exceedingly small 
spines. Head quite small. An occipito-ocular dark vitta continued vertically beneath the orbit to the hyoid apparatus. 
Ground color yellowish ; about thirteen dorsal roundish spots of blackish brown, and about eighteen lateral, subquadrate 
ones of light brown. 
This little fish may be generally found at low tide on oyster-beds and shoals, and seem to be 
almost amphibious. When alive they are of a dark grayish color, with tranverse bars and 
mottlings of a dark olive. They are resident in the bays at all seasons, and those collected 
are among the largest I have seen, their length not exceeding three inches.—C. 
Several were obtained from the bays of Puget Sound, near Fort Steilacoom. 
CEBIDICHTHYS YIOLACEUS, Grd. 
Violet Monkey-fish. 
Plate XX Y6, Figs. 4 and 5. 
Sp. Ch. —Upper surface of head narrow, declivous laterally. A fleshy crest along the cranial ridge. Mouth large; 
posterior extremity of maxillaries extending to a line drawn across the posterior rim of the orbit. Origin of anal fin situated 
