2504 Bulletin //, United States National Museum. 



posterior rays longest, about 3| in head, base of each scaled ; distance from 

 tip of snout to origin of dorsal about 3 in length of body; origin of anal 

 under about twenty-second dorsal ray, equidistant between tip of snout and 

 base of caudal; scales very small, embedded, but showing distinctly under 

 a lens ; cheek and opercles partially covered with minute, embedded scales ; 

 top of head naked; opercle with a large, flat, flexible spine on level with 

 eye. No barbels, cilia, nor tubercles ; 2 large mucous pores at symphysis of 

 lower jaw and 2 on preorbitals near anterior edge on each side; a row of 5 

 or 6 pores on lower jaw and edge of preopercle. Color uniform pale oliva- 

 ceous or light brown, finely punctate with minute brown specks. Key 

 West. Only the type known, an example, 2 inches long, seined on a shoal 

 covered with algas at Key West. (Cayo Hueso, or Bone Key, the original 

 Spanish name for the Island of Key West, whence the name cayorum, of 

 the keys.) 



Ogilbia cayorum, EVEKMANN & KENDALL, Bull. TJ. S'. Fish Comm. 1897 (Feb. 9, 1898), 

 132, pi. 9, fig. 14, Key West, Florida. (Type, No. 48792. Coll. Evermann & Kendall.) 



958. BYTHITES, Keinhardt. 

 Bythites, KEINHARDT, Dansk. Vidensk. Selsk. Afhandl., vii, 1838, 178 (fuscus) . 



Body elongate, covered with minute scales. Head large, thick ; mouth 

 large; jaws equal; no barbel; bands of teeth in the jaws and on vomer 

 and palatines. Branchiostegals 8 ; gill membranes united, free from the 

 isthmus; eyes moderate. Lateral line interrupted. Vertical fins united; 

 ventral fins reduced to simple filaments, each composed of 2 rays closely 

 united. Air bladder large; 2 pyloric cseca. A thick, conical, anal papilla 

 (in the male). Greenland. (fivQirrjs, an animal of the depths, from 

 fivQioS, the deep.) 



2876. BYTHITES FUSCUS, Reinhardt. 



Head about 4 ; depth 4. Body somewhat compressed, lipariform ; snout 

 obtuse, naked, with minute cirri. Mandible long, curved > extending far 

 behind vertical from posterior margin of orbit ; eye small ; scales moderate 

 on body; lateral line complete, but interrupted over vent, the two parts 

 slightly overlapping the same vertical ; vertical fins confluent, enveloped 

 in thick skin; pectorals broad, lanceolate, with broad base; ventrals fili- 

 form, reaching behind origin of pectoral, as long as pectoral and as long 

 as head; a conspicuous anal papilla in the male. The only known speci- 

 men, now in the museum at Copenhagen, was obtained in Greenland half 

 a century ago. (Goode & Bean.) (fuscus, dusky.) 



Bythites fuscus, REINHARDT, Dansk. Vidensk. Selsk. Afh., vn, 1838, 178, Greenland ; GUN- 

 THER, Cat., iv, 375, 1863; JORDAN & GILBERT, Synopsis, 795, 1883; GOODE & BEAN, 

 Oceanic Ichthyology, 316, 1896. 



959. CAT^TYX, Giinther. 



Catcetyx, GUNTHER, Challenger Report, xxn, 104, 1887 (messieri). 



Body compressed, elongate, covered with very small and thin scales; 

 lateral line indistinct, interrupted. Head oblong, with somewhat pointed 

 snout, covered with very small scales, only the anterior part of the snout 



