2222 Bulletin 47, United States National Miiseum. 



the spines slender but ratlier firm, none of them filamentous, the longest 

 about % head; second dorsal and anal rather large; caudal long, pointed, 

 slightly longer than head ; jicctorals large, slightly longer than, head, none 

 of the upper rays silk-like; ventrals slightly shorter than head, inserted 

 below axil of pectorals; skull rounded behind, no ridges nor crests; crests 

 at side minute; intcrorbital very narrow. Color in life: Male, deep olive 

 green, mottled with darker; middle of side with 4 or 5 vague darker 

 blotches; a jet-black spot above gill opening, on side of back; head 

 mottled, dusky below; usually a dark bar below eye; dorsals tipped 

 with bright yellowish, each crossed by numerous narrow, somewhat 

 oblique, interrupted bars or series of spots, these being of a rich reddish 

 brown color; caudal barred with black, its upper edge tinged with 

 orange; anal nearly plain, with a slight orange tinge; ventrals bluish 

 black, their edges whitish. Female, paler and duller in color, more 

 mottled, the black spot above gill opening obsolete or nearly so; a dark 

 spot at base of caudal; upper lins barred, as in the male; lower fins 

 mostly pale, tinged with orange. Many specimens of this species, the 

 largest about 2 inches in length, were obtained in the Laguna Grande at 

 Pensacola. It lurks in sea wrack on muddy bottoms iu very shallow 

 water (6 to 12 inches). In form, size, coloration, and movements this 

 little fish bears a remarkable resemblance to the percoid, Jioleosoma 

 olmstedi. Gulf of Mexico, Pensacola to Key West; common in shallow 

 sandy bays, lurking iu sea wrack at the depth of a foot (whence the name 

 ftoXii, dart; dco/ta, body). 



Gohius boleosoina, Jordan & Gilbert, Proc. U. S. Nat. Mus. 1882, 295, Laguna Grande, 

 Pensacola ; ibid, Synopsis, 946, 1883 ; JORDAN & ElGENMANN, I. c, 495. 



2545. GOBIUS FASCIATUS (Gill). 



Head 4 in length (4|in total) ; depth 6 (7). D. VI-12; A. 10; scales 30-7. 

 Body slender, elongate ; head somewhat pointed ; profile rounded, not as 

 much as in Gohius yarmani and Gohius holeosoma ; eye large, slightly longer 

 than snout, 3f in head ; interorbital area scarcely wider than pupil ; mouth 

 slightly oblicjue, maxillary extending to below anterior margin of pupil, 

 3^ iu head; lower jaw thin and flat; teeth strong, recurved, in a baud in 

 each jaw, the teeth of tlie outer series of the upper jaw enlarged, several 

 times as large as those of the inner series. Scales finely ctenoid (fallen oflt" 

 anteriorly iu specimen examined); antedorsal region and breast naked. 

 Dorsal spines slender, filamentous near tip, not reaching second dorsal, 1^ 

 iu length of head ; second dorsal of moderate height ; caudal (tips broken) 

 about 5 in length, 1| in length of head ; ventral not reaching vent, li in 

 head; pectorals pointed, equaling the head in length. Color yellowish, 

 marbled with darker above; 4 oblong dark blotches along middle of sides; 

 a darker spot at base of caudal; narrow dark stripes across nape; a faint 

 dark stripe along upper margin of opercle, through lower margin of eye 

 to snout; another extending from angle of mouth to edge of preopercle, 

 then extending down along the margin of the preopercle and ending in a 

 dark Idotch on the lower part of the cheek; a dark spot on opercle; first 

 dorsal with 2 curved bars; caudal with 3 rather broad dark bars; anal 



