CAAIEIBYEXce 167 
vomer, and palatines. Vomerine band V-shaped, with the branches cury- 
ing out and backward toward the palatines and the apex descending forward 
and expanded into a rather broad patch. Eye very small, two fifths as long 
as the snout, two sevenths of the interorbital space, one eleventh of the 
length of the head. Nostrils prominent; posterior higher than the eye, its 
distance from the orbit equal that from one another or that from the ante- 
rior to the intermaxillary ; a groove from the anterior to the lip. Opercu- 
lar spine weak, flexible; preopercle not armed. No barbels. Gill openings 
wide; membranes not united, free from the isthmus. Pseudobranchize 
small. Genital papilla small. Vertical fins united ; dorsal origin forward of 
the bases of the pectorals; anal origin less than the length of the head be- 
hind the latter; caudal narrow, elongate, acute, united at the base with 
dorsal and anal. Pectoral base wide, about one third of the length of the 
fin; lower section of the fin longest, flexible, pointed. Ventrals close to- 
gether, at the humeral symphysis, each a single, segmented filamentary ray, 
two thirds as long as the head. 
About fifteen inches in total length. 
Fins, mouth, throat, gill membranes, and linings of mouth and body cav- 
ity black. Body over the muscular portions brownish, possibly reddish or 
purplish in life. Top and sides of head, over the very extensive mucous 
cavities whitish, possibly light producing in the living animal. 
Station. Latitude. Longitude. Depth. Temperature, Bottom, 
3392 id! oOUUNE 79° 40’ W. 1270 fathoms 36.4° F. Hard. 
CATAETYX. 
taal Cutaetyx Giint., 1887, “Challenger” Report, Deep Sea Fishes, 104. 
Form somewhat resembling that of Diplacanthopoma. Body elongate 
compressed ; scales small; lateral line distinct. Head elongate; depressed ; 
cheeks scaly. Eye small, superior. Mouth wide, anterior, intermaxillary 
alone forming the upper margin. Teeth small, equal, in villiform bands on 
jaws, vomer, and palatines. Snout broad, blunt, lower jaw longer. No 
barbels. A long opercular spine. Gills four, a slit behind the fourth; lami- 
ne short; membranes not united, free from the isthmus; apertures wide ; 
rakers few. Branchiostegal rays nine to eight. Pseudobranchie small, 
said to be absent in the typical species. Vertical fins united. Ventrals 
close together, behind the humeral symphysis, forward of the pectorals, of a 
