2522 Bulletin 4.7 ', United States National Museum. 



29' 30" N., Long. 70 57' W., in 1,631 fathoms. (Goode & Bean.) (Named 

 for Hon. Marshall McDonald.) 



Penopu* macdonaldi, GOODE & BEAN, Oceanic Ichthology, 336, fig. 293, 1896, Lat. 38 29' 30" 

 N., Long. 70 57' W., in 1,631 fathoms. (Type, No, 39433.) 



970. DICROLENE, Goode & Bean. 



Dicrolene, GOODE &, BEAN, Bull. Mus. Comp. Zool., x, Xo. 5, 202, 1883 (intronigra) . 



Brotulids with body moderately compressed ; head somewhat com- 

 pressed; mouth large; tip of maxillary much dilated; eye large, placed 

 close to dorsal profile. Head with supraorbital spines; several strong 

 spines on preopercle and 1 long spine at upper angle of opercle. Snout 

 short, not projecting beyond the upper jaw; jaws subequal. Teeth in 

 narrow villiform bands in each jaw, on head of vomer, and on palatines. 

 No barbel. Gill openings wide, membranes not united ; gills 4 ; gill laminre 

 of moderate length ; gill rakers rather long, not numerous ; pseudobrau- 

 chia? absent. Caudal not confluent with dorsal and anal, but without a 

 distinct peduncle. Dorsal and anal fins long; pectoral rays in 2 groups, 

 several of the lower ones being separated and much produced; ventrals a 

 pair of bifid rays, close together on the isthmus. Branchiostegals 8. Body 

 and head covered with small scales; lateral line close to base of dorsal 

 fin, apparently becoming obsolete on posterior third of body. Stomach 

 siphonal ; pyloric ca3ca few and rudimentary ; intestine shorter than body. 

 Deep sea; a single species known, (dixp do, forked; cpAeVip, limb.) 



2893. DICROLENE KVTRONIGRA, Goode & Bean. 



Head 5; eye large, 4 in head; interorbital width 4. D. 100; A. about 

 85; C. 6 or 7; V. 1; P. 19 -f 7 or 8; scales 110 to 120. Body moderately 

 compressed, its dorsal and ventral outlines approaching at an equal angle 

 the horizontal axis, and tapering to a narrow point. Head somewhat com- 

 pressed, with flattish upper surface, which is encroached upon by the 

 upper margin of orbit; a strong spine at posterior upper margin of orbit, 

 pointing backward and upward; a long, sharp spine at upper angle of 

 opercle, its exposed portion 2 in eye; 3 equidistant spines on lower pos- 

 terior border of preopercle, much weaker than that on opercle. Large 

 muciferous cavities in bones of head ; a row of large cavities extending 

 backward from upper angle of orbit, and continuous with those on lateral 

 line. Mouth large, its cleft considerably more than head, the maxillary 

 extending beyond eye and with scales upon its expanded tip. Distance 

 from snout to origin of dorsal fin f total length; anal inserted under 

 twenty-fifth or twenty-sixth dorsal ray ; height of dorsal and anal fins each 

 about equal to eye ; length of caudal fin 2 in distance from snout to dorsal ; 

 ventrals about equal to upper jaw; pectorals inserted close to branchial 

 aperture, the 8 lower rays free and much prolonged, the longest and most 

 anterior being about 3 in body, and more than 3 times as long as the con- 

 tiguous posterior ray of the normally constructed portion of the fin, 

 which is, however, about equal to the last free rays. West Indies, Gulf of 



