ZOOLOGY. 355 



own spine being slender, serrated upon its edges, and extending beyond the tips of the ossa innominala. Posterior margin of 

 caudal slightly emarginatei. 



STN. Gasteronteus pugettii, GRD 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 S f eilacoom. 

 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, fcc. 



PLATE XXIII. 



SP. CH. Profile 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. 



STN. 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. 



Scintna grisea, LESU. in Journ. Acad. Nat. Sc. Philad. II, 1822, 254. 

 Corvina oscula, Ccv. & VAL. Hist. Nat. des Poiss, V, 1S30, 98. RICHARDS. Faun. Bor. .Amer. Ill, 183G, 68. 



DEKAY, New Y. Faun. IV, 1842, 73 ; plata xxi, fig. 63. STOKER, Synops. 1846, 67. 

 Corvina grisea, DE!YAT, New Y. Faun. IV, 1842, 76. 

 White perch of the Ohio, lake sheepshead, buffalo perch, grunting perch, Sfc., 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 6, FIGS. 6 and 7. 



Gunnellus ornatus, GRD. in Proo. Acad. Nat. Sc. Philad. VII, 1854, 149. IBID. Gen. Rep. Fishes, p. 116. 



SP CH. Dorsal and anal fins contiguous to the caudal. Anal spines, two. Ventrals reduced to two exceedingly small 

 spines. Head quite small. An occipi to-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 transverse 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 VIOLACEUS, Grd. 

 Violet Monkey-fish. 



PLATE XXV 6, FIGS. 4 and 5. 



SP. CH. Upper surface of head narrow, declivous laterally. A fleshy crest along the cranial ridge. Mouth large; postcrio. 

 extremity of maxillaries extending to a line drawn across the posterior rim of the orbit. Origin of anal fin situated opposite 



