NO. 1114. PROCEEDINGS OF THE NATIONAL MUSEUM. 409 



above the interspace between tlie third and fifth pairs, the fifth in 

 front of base of ventral fins; snpraventral 1, immediately under 

 lateral line; veutrals 5, the second and third high up on the sides and 

 nearly on a level Avith the base of the pectoral tin; supraauals 3, form 

 ing nearly a right angled triangle, with one of the spots above the 

 ■hindmost ventral spot, the second immediately below the lateral Hne, 

 and the tliird nearly above the first anterior anal spot; anterior anals 

 (f, equidistant, the hindmost above and behind the fifth and on a line 

 connecting' tlie fifth anterior anal and the posterolateral; postero- 

 lateral 1, immediately under lateral line and above interspace between 

 last anterior anal and first posterior anal; jiosterior anals G, equidistant; 

 caudals 4, in an obliquely directed shallow curve concave forward. 

 The spots are divided into halves by a line of black pigment. A long- 

 gland extending the length of 6 or 7 scales, on the back of the caudal 

 peduncle, present in five adults, faintly developed in one young speci- 

 men and entirely absent in one adult. No glandular jihotophorc on 

 snout. 



The distance from tip of snout to origin of first dorsal or to base of 

 veutrals 2.\ in length of body;- from origin of first dorsal to second 

 dorsal 22 ; length of base of first dorsal about 5§ ; length of base of anal 

 5i^; from base of pectorals to base of veutrals 7; from base of veutrals 

 to origin of anal 4i to 4i in length of body. 



Pectoral fins inserted low, only a little above the line iroin outer 

 part of base of ventrals to angle of mouth, the fins narrow, weak, 

 about 2:^ in head. Ventral rays strong, reaching to or beyond origin 

 of anal. Longest anal rays considerably less than 2 in head. Caudal 

 deeply forked, the longest rays at least two-thirds as long as head. 



C-olor (in alcohol). — Snout and anterior part of mterorbital s})ace 

 whitish or yellowish; an area over each orbit and the upper part of 

 eyeball black. Cheeks .silvery; opercle silvery and black, breast and 

 abdomen dusky siU^ery; body blackish; scales with some metallic lus- 

 ter. Gill and mouth cavities black. Fins all black at base, then 

 whitish. Peritoneum black. 



Seven specimens, 2^ to 4^ inches long, from stations 3467 and 3472; 

 310 and 205 fathoms respectively. 



Type.—^o. 47700, U.S.N.M. 



This species differs from other known species of the genus in the 

 absence of phosphorescent blotches on anterior part of head. This 

 character seems to ns to be of specific importance only. 



DIAPHUS CHRYSORHYNCHUS, new species. 

 (Plate XXX'VIII, tig-. 2.) 



Head ^ to Sf; depth 4f to 4|; D. 17; A. IG; P. 11; V. 8; lateral 

 line, 34 to 35. 



Body elongate, com])ressed, its width 1'^ in its depth. Dorsal and 

 ventral outlines similar, the depth at nape and at origin of first dorsal 



