Jordan and Evermann. Fishes of North America. 2299 



10 rays are uiiarti dilated and spinous; first 2 anal rays not articulated; 

 caudal about If in head; pectorals 1^. Lateral line running anteriorly 

 along the very base of spiuous dorsal, no scales intervening between it 

 and base of fin ; it descends to middle of sides posteriorly, the median 

 portion of its length shorter than the dorsal portion. Color light oliva_ 

 ceous, the back with 6 broad cross bars of pink, narrowly margined be- 

 hind and in front with blackish, terminating below on middle of sides; 

 the lower of these bars frequently black ; a black bar across caudal pe- 

 duncle, and sometimes a black line at base of caudal; along median line 

 of sides frequently a series of small black spots alternating with the 

 cross bars; a similar series along median dorsal line; a large pink blotch 

 covering occiput; a dusky bar across interorbital space, running down- 

 ward and backward across cheek; silvery spots and blotches on cheeks 

 and anterior portions, of opercles; fins unmarked. Specimens have been 

 obtained in the Gulf of California by the Albatross, at Stations 2827 and 

 2829, and by the Grampus in the Atlantic, at Stations 5108 and 5112, off 

 the coast of Florida ; no specific difference among them noticed, but the 

 Atlantic form needs further study. (Gilbert.) (semi, half; cinctus, belted.) 



Gilldlus semicinctus, GILBERT, Proc. U. S. Nat. Mus. 1890, 98, Albatross Stations 2827, 2829, 

 Gulf of California (Coll. Albatross); JORDAN, Proc. Cal. Ac. Sci. 1896, 229, pi. 32. 



2635. GILLELLUS AUEMCOLA, Gilbert. 



Head 43 in length ; depth 8f. D. II-IX, 31 ; A. II, 35 ; scales 18-3-27. Body 

 very slender and elongate, much as in Myxodaynus, the snout sharp, the 

 mandible produced at symphysis and conspicuously projecting; labial 

 fringes apparently obsolete; maxillary reaching vertical from middle of 

 orbit; eye small, about equaling length of snout, 6 in head; opercular 

 fringes nearly obsolete, 3 or 4 small ones at upper edge of opercle. An- 

 terior dorsal inserted close behind occiput, composed of 3 rays, and sepa- 

 rated by a short interspace from rest of fin ; pectorals longer than head. 

 Lateral line anteriorly running along base of dorsal, from which it is not 

 separated by intervening scales, the anterior portion contained 2 times in 

 the posterior median portion. Color light olivaceous, the head with gray- 

 ish blotches and small pearly spots; 11 dark bars downward from back, 

 the alternate ones narrower and fainter and not extending to middle of 

 sides, as do the others; the margins of the larger bars darker than the 

 median portion, the bars not continued onto dorsal fin ; all the fins trans- 

 lucent. A single specimen 1| inches long, from Cape San Lucas. (Gil- 

 bert.) (arena, sand; colo, I inhabit.) 



Gillelhis arenicola, GILBERT, Proc.U.S.S"at.Mus.l890, 99, Cape San Lucas. (Coll.Gilbert.- 



2636. GILLELLUS ORNATUS, Gilbert. 



Head 4 in length ; depth 8. D. III-IX, 31 ; A. II, 34 ; scales not counted. 

 With the elongate form and general appearance of Gillellus arenicola, but 

 differing in the subequal jaws and in the long anterior portion of the lat- 

 eral line. Head conical, acute, very small; jaws nearly equal, the lower 

 slightly longer than the upper, but not noticeably protruding. In this 



