840 Bulletin 47, United States National Museum. 



1220. ANOPLOGASTER CORNUTTJS (Cuvier & Valenciennes). 



Head 2f ; depth about If; eye about 3. D. 17; A. 9 or 10; P. 16; V. 

 7. Interorbital width nearly half that of head ; suborbital arch with 

 7 cavities ; bony ridges of head ending in several blunt points ; ventrals 

 midway between tip of snout and base of caudal. Deep Atlantic, five 

 specimens known, one of them from 39 18' 30" N., 68 24' W., obtained 

 by the Albatross. (Goode & Bean.) (cornutns, horned.) 

 Hoplostethus cornutus, CUVIER & VALENCIENNES, Hist. Nat. Poiss., ix, 270, 1833, stomach of an 



Albicore, 31 N., 40 W. 

 Anoplogaster cornutus, GUNTHER, Cat., i, 12, 1859; GOODE & BEAN, Oceanic Ichth., 18 1, 1895. 



378. POROMITRA, Goode & Bean. 



Poromitra, GOODE & BEAN, Bull. Mus. Comp. Zool., 1882, 214, (capUo). 



Body short, compressed, scopeliform, covered with thin cycloid scales. 

 Head very large (in young specimens nearly as long as trunk) its sides 

 scaly. No barbel. Mouth very large, the lower jaw projecting. Margin 

 of upper jaw composed of a long maxillary and a short premaxillary. 

 Teeth very small, cardiform, on premaxillaries and lower jaw only. 

 Opercula complete. Dorsal fin in middle of body, its origin not far behind 

 ventrals, its spinous and soft portions about equal in length ; anal much 

 shorter than dorsal ; the last rays of dorsal nearly above its middle. 

 Pseudobranchiae present. Gill openings very wide. Deep seas. (Tropdf, 

 pore; nirpa, stomacher.) 



1221. POROMITRA CAPITO, Goode & Bean. 



Head 2* (in young) ; depth 3i. D. VII or VIII, 6 ; A. 9 ; V. 7 or 8 ; P. 

 12; C. 5. Eye large, as long as snout; maxillary 3i in head. Scales as 

 large as pupil, with concentric striae, about 24 in lateral line and 10 in 

 transverse series. Insertion of dorsal midway between tip of snout and 

 base of caudal ; base of anal half that of dorsal ; pectoral inserted low, 

 its length twice its distance from the snout ; ventrals minute, in advance 

 of pectorals. Caudal (mutilated in the known specimens). Gulf Stream 

 in latitude 34, obtained by the Blake. (Goode & Bean.) (capita, large- 

 headed.) 



Poromitra capita, GOODE & BEAN, Bull. Mus. Comp. Zool., 215, 1882, Gulf Stream; GOODE & 

 BEAN, Oceanic Ichth., 183, 1895. 



379. PLECTROMUS,* Gill. 



Plectromus, GILL, Proc. U. S. Nat, Mus., 1883, 257, (suborbitalis) . 



Body moderately elongate, covered with moderate cycloid scales. Head 

 large and thick, with wide muciferous channels, the bones often with 



* The following details concerning Plectromus are given by Dr. Gill (Goode & Bean, Oceanic 

 Ichthyology, 178): 



Body little compressed, highest behind ventrals, with the dorsal outline describing a slight 

 sigmoidal curve and the abdominal almost rectilinear; the caudal peduncle long and robust. 

 Scales moderate, imbricated, cycloid, and readily deciduous. Lateral line apparently undevel- 

 oped. Head oblong or longer than high, very declivous in front, and with the suspensorium 



