NO. 1114. PEOCEEDIXGS OF THE NATIOXAL MUSEUM. 405 



Family LEPTOCEPHALID.E. 



PROMYLLANTOR ALCOCKI, new species. 

 (Plate XXXVI, fig. 1.) 



Head 7i to 7 J in total length (8A in a young specimen), depth about 

 17i to 18;^. Head and trunk much shorter than tail, about 1*^ to 2 in 

 the latter. Pectorals 12 to 13 rays. 



Body very slender, compressed. Head about as deep as \yide, 

 tapering forward to a broad, flat snout, which is acute at tip. Snout 

 3| to 3i in head, projecting about two-fifths to one-third of its total 

 length beyond the tip of the lower Jaw. Eye circular, very small, 

 about 3 to 3.^ in snout (3 in young), high up, its center about one-third 

 of the distance from tip of snout to gill opening. Interorbital space 

 about 3 ill snout, a little more than eye, nearly flat. Top of head 

 transparent, the outlines of the brain distinctly visible, Anterior 

 nostril with a very short tube on the mfero-lateral i)art of the snout, 

 about midway between tip of snout and tip of lower jaw. Posterior 

 nostril an oval opening aliove the anterior half of the eye. Pores on 

 snout : a small pair immediately in front of premaxillary teeth ; another 

 larger under tip of snout; one over and one behind anterior nostril; two 

 others above the edge of the upper lip; one behind angle of jaw. Gape 

 of mouth scarcely reaching front of orbit. Teeth in villitbrm bands in 

 both jaws, those of lower jaw in about 4 or 5 welldetiued series along 

 the sides; a large, broad band of teeth on vomer. Tongue free. Lips 

 thin, but somewhat pendent and partly concealing the gape. Gill open- 

 ings small, about 3 in snout (smaller in young), far apart, the distiince 

 between them about 4f in head. Gills, 4; the rakers present, but 

 excessively minute. Lateral line above middle of body anteriorly. No 

 scales. The low dorsal fin begins about opposite the tip of the pectoral 

 fin; the distance between the tip of snout and the origin of the dorsal 

 about 5^ in the total length (6 in young). Occiput a trifle nearer front 

 of dorsal than tip of snout. The very low anal fin begins immediately 

 behind the vent. Pectorals very small, pointed, a little shorter than 

 tlie snout. 



Color (in alcohol). — Light brownish yellow. Fins pale. Abdomen 

 gieenisli. Lips dark. Inside of month light. Gill cavities black. 

 Peritoneum blackish or dusky. Type 10^ inches long, with well 

 developed ova. 



Xine specimens, 7i to 10^ inches long, from station 3472; 295 fathoms. 



Type.—l!io. 47724,'u.S.y.^r. 



CONGERMUR^NA iEQUOREA, new species. 

 (Plate XXXVII.) 



Head 6^ to 6* in total length ; depth about 15 to 18. Head and trunk 

 much shorter than tail, about If in the latter. Pectoral rays 14 to 15. 



