108 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



forked and articulated; interval between dorsals scarcely wider than 

 space separating successive rays ; anterior rays of second dorsal much 

 higher than those of anal, longest 2.81 in head; outer ventral ray 

 elongate, filiform, 2.70 in total length; second pectoral ray elongate, 

 filiform, as long as longest ventral ray; base of ventrals midway 

 between tip of mandible and vent. 



Color in alcohol: Ground color wood-brown; top of head light 

 grav; inside of opercle and mouth, and under side of head blackish, 

 with silvery reflections; vertical fins dusky gray; paired fins some- 

 what darker. 



Type.— C&t. No. 72924, U.S.N.M., 24.2 cm. m length, taken with a 

 beam trawl at station 5587 Gat. 4° 10' 35'' N. ; long. 118° 37' 12" E.), 

 near Sipadan Island, west coast of Borneo, at a depth of 415 fathoms, 

 on a bottom of green mud, sand, and coral. 



This species resembles Melanobranchus micronemus Gilbert from the 

 Hawaiian Islands in form, but differs in having the interorbital much 

 broader, 1.5 times width of eye, fewer pectoral rays, coracoid foramen 

 within the substance of the hypercoracoid, and no mandibular barbel. 

 There are 3 examples of this species in the collection, the second a 

 cotype, and the third from station 5650, taken at a depth of 540 

 fathoms. 



REGANIA SULCATA Smith and Radcllffe, new species. 

 Plate 22, fig. 3. 



Dorsal ii, 10-1 05; anal 88; ventrals 9; pectorals 16. 



Head 4.85 in total length, cavernous, mucous canals large, mem- 

 branous covering tliin, dorsal surface with a higher arch than in E. 

 nipponica Jordan and Gilbert from Japan, greatest width equal to 

 length of snout plus eye; body stout, greatest depth at origin of dorsal 

 6.60 in total length; length of head and trunk 2.84; vent separated 

 from origin of anal by a distance equal to diameter of pupil; tail 

 tapering, compressed; eye 3.96, large, subelliptical; interorbital 4.77 

 in head, 1.20 in eye, flattened; snout about as long as eye, depressed, 

 blunt, with a conspicuous knob at tip; nostrils close to eye, the 

 anterior small, circular, the posterior large, elliptical; mouth large, 

 tel"minal, slightly oblique; maxillary 1.82, truncate at tip, extending 

 slightly beyond vertical from hinder margin of eye ; mandible pointed, 

 shutting entirely within premaxillary band of teeth; mandibular 

 barbel rudimentary, represented by a slight knob; narrow bands of 

 small depressible teeth in jaws, a toothless space at S3''mphysis of 

 upper jaw equal in width to 0.75 diameter of pupil; palate toothless; 

 opercle armed with two sharp, slender spines, the first above, the 

 second below, base of pectoral, the latter not reaching edge of opercle; 

 gills 4, a long slit beliind the fourth; outer set of gill-rakers long and 

 -blender, 5-M6; pseudobranchise absent; corcacoid foramen small, 



