636 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



9§9. «S. oceaBBacMS (Pall.) J. & G. 



Brownish, lighter below; a faint dusky streak along sides; a dark 

 bar below eye; fins unicolor; i^ectorals dusky. Body much elongate, 

 of equal depth throughout. Head short; profile very convex. Mouth 

 large, oblique; jaws equal; maxillary reaching to below middle of orbit. 

 Dorsal spines more or less elevated, filiform, usually higher than the 

 soft rays; caudal from ^-^ of length of body; pectoral slightly longer 

 than head or than ventrals, none of its rays silk-like; basal membrane 

 of ventrals well developed. Head 5^-G in length ; depth about 7i. D. 

 VI-13; A. 14; Lat. 1. GO-70, the scales much smaller and crowded, an- 

 teriorly. Coast of Texas to Guiana. 



(Gobius oceanicits Pallas, Spicilegia, viii, 4, 1769, after Gohius cauda longissima acumi- 

 nata Grouow: Gohius laticeolatus Bloch. Fiscbe Deutsclil. ii, 12, pi. 38, f. 1, 1784: Gobiun 

 lanceolafus C. & V. xii, 114: Gobius bacaJaus C. & V. xii, 119: Gobius lanceoJatus Giin- 

 ther, ill, 50: Gobioncllus hastatus Girard, Proc. Acad. Nat. Sci. Phila, 1858, 169: Gobio- 

 nellus hastatus Girard, U. S. Mex. Bouud. Surv. 1859, "24. ) 



316.— CJai.]LICMTII^S Cooper, 

 (Cooper, Proc. Cal. Acad. Nat. Sci. 1883, 111: type Gillichthys miraiilis Cooper.) 



Body moderately elongate, comi)ressed, covered with small, cycloid, 

 imbedded scales; belly and head naked. Eyes small, almost superior. 

 Gape wide, the maxillary in the adult inordinately developed, prolonged 

 backward to the base of the i)ectorals; its posterior part a cartilaginous 

 expansion, connected to an expansion of the skin of the lower jaw, 

 thus forming a channel backward from the mouth, almost exactly as 

 in the Blennioid genus Neoclinus and the Trachinoid genus OpistJiog- 

 natlius. Teeth small, even, in broad bands. Dorsal fins 2, the second 

 high, the first of 6 verj^ weak spines, none of which are exserted; cau- 

 dal rounded; pectorals large; isthmus broad. Singular little fishes, 

 in brackish waters, burrowing in the mud. 



(Dedicated to Theodore Gill.) 



990. CJ. HiIa'atoBBns Cooper. — Mud-fish . 



Dull olive, very finely marbled with darker; sides of head and max- 

 illary finely punctate; fins olive; belly and ventrals yellowish. Body 

 rather stout, somewhat compressed. Eyes small, high, anterior; max- 

 illary in the adult reaching past base of pectorals, proportionately 

 smaller in the young; in the very young the bone is scarcely larger 

 than in other Gobies. Scales very small, smooth; belly and head naked, 

 showing prominent veinings; dorsal spines very weak. Head 3i; depth 

 4i; maxillary, in adult, 3. D. VI-13; A. I, 10. L. C inches. Pacific 



