502 REVIEW OF NORTH AMERICAN GOBIIDiE. 



We retaiu the name Lepidogobius for two species, apparently allied to 

 each other, and difi'ering from the typical Gobies in the small, cycloid 

 scales, in the presence of 7 or 8 dorsal species, and in the presence of 

 fleshy processes on the shoulder girdle. 



The two species have been made types of distinct genera by Dr. Gill^ 

 but the diflerences between them, although considerable, seem to us of 

 less than generic importance. 



ANALYSIS OF THE SPECIES OF LEPIDOGOBIUS. 



a. Head scaled; hody elongnte {LejyidogoMus). 



6. Body elongate, subfusiform, little compressed, depth about 7 in length. Head 

 regularly conical, 4^ in length. Eye twice as long as high ; its longitudinal 

 diameter equals snout, 4 in head. Snout not obtuse in profile. Interorbital 

 area narrow, about equal the diameter of pupil. Mouth large ; maxillary 

 reaching to below posterior edge of pupil, 2^ in head. Teeth small, all sim- 

 ilar, those of the upper jaw in two or three series, those of the lower jaw 

 close set, in a broad band. Body covered with small cycloid scales, which 

 are very much reduced anteriorly, especially on nape ; cheeks, sides of head 

 and upper posterior part of opercle covered with small scales. Top of head 

 scaly to eye. Breast scaled. Dorsal spines weak ; the highest one half 

 head. Soft dorsal low, none of the rays reaching caudal. Caudal long, some- 

 what pointed. Dorsal, vii, 16-18. Anal, 15. Scales about '^6 ..Lepidus, 39. 



aa. Head naked ; body short, chubby (EucyclogoMus). 



c. Body short, little compressed, its depth 4J in length. Head large, lU in length, 

 rounded above ; snout broad. Month large, somewhat oblique, the lower 

 jaw somewhat projecting ; maxillary extending more or less beyond orbits 

 Eye small, 5 in head, shorter than snout. Teeth rather strong, in narrow 

 bauds, the outer row larger ; outer teeth of lower jaw somewhat movable. 

 Scales very small, cycloid ; head and nape naked. Dorsal spines very 

 slender, not filamentous, lower than the soft rays ; caudal truncate, about 

 as long as pectorals and considerably shorter than head. Ventrals inserted 

 under lower anterior edge of pectorals. Olivaceous, mottled with darker; 

 head with some dusky markings ; second dorsal and caudal checkered ; a 

 faint spot at base of caudal. Dorsal, vii to viii — 1*2. Anal 11 or 12. Scales 

 60 to 70 Newberryi, 40. 



39. Lepidogobius lepidus. 



Gobiits {jracilis Girard, "Proc. Acad. Nat. Sci. Phil., 1854, I'M" (preoccupied 



by Gohiiis gracilis Jenjns.) 

 Lepidogobius gracilis Gill, Annals Lye. Nat. Hist. New York, 1859, 14; Gillj 



Proc. Acad. Nat. Sci. Phil., 1863, 279 (California); Gill, Proc. Acad. Nat. 



Sci. Phil., 1863, 266 (no locality); Jordan & Gilbert, Proc. U. S. Nat. 



Mus., 1880, 455 (Puget Sound; San Francisco) ; Jordan & Jouy, Proc. U. 



S. Nat. Mas., 1881, 9 (Sau Francisco) ; Jordan & Gilbert, Proc. U. S. Nat. 



Mus., 1881, 53 (San Francisco; Victoria); Jordan & Gilbert, Syn. Fish. 



North America, 637, 1883. 

 Gobius lepidus Girard, Pacific Railroad Survey, 127, plate xxva, fig. 5 «fc 6, 1859 



(San Francisco) ; Giiuther, Cat. Fish. Brit. Mus., iii, 78, 1861 (San Fran- 

 cisco). 

 Lepidogobius lepidus Jordan, Catalogue Fish. North America, 106, 1835 (name 



only). 



Habitat. — Pacific coast of United States, San Francisco, northward. 

 This species is common in rather deep water outside the bay of San 

 Francisco 5 from this locality our specimens were obtained. 



