472 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



Scales lost everywhere save over interdorsal space, there showing 

 from 9 to 11 nearly parallel rows of spinules which are raised but 

 slightly from plane of scale surface, and rarely project over posterior 

 edge; lower surface of head and mandibular rami scaled; no pit or 

 naked area between ventrals; lateral line not evident because of loss 

 of scales. 



Color uniformly dusky except at edges of mouth, the posterior edges 

 of gill membranes, the peritoneum, and linings of gill cavities, which 

 are all black. 



The relatives of this form include C. rudis (Giinther),^ but the 

 scales are different and the barbel much shorter. Its proportions 

 differentiate it from O. cajnto, anguliceps, and latinasutus of Garman. 



Table of measurements of type and paratypes in hundredths of length to anus. 



Total length mm 



Length to anu.s mm 



Head 



Depth 



Snout 



Eye 



Maxillary 



Mandible 



Interorbital space 



Distance premaxillaries to tip of snout. . . 



Dorsal rays 



Pectoral 



Ventral 



235 



92 



0.65 



.46 



.21 



.20 



.20 



.26 



.18 



.13 



11,8- 



21 



21. NEZUMIA PUDENS Gilbert and Thompson, 

 Plate 5, fig. 2. 



Two specimens from Alhatross station 2791, in 677 fathoms, off 

 Lota, Chde, 38° 08' S., 75° 53' W. The type is 175 mm. in total 

 length. Cat. No. 76860, U.S.N.M. 



Head 5 in total length, and If in length to anus; depth 7 in total, 

 If m length to anus; orbit 3| in head; hiterorbital width 4|; snout 

 3^; maxillary 3; mandible 2\; barbel 4 (1^ in eye) ; distance from base 

 of ventral to anus If in eye; from anus to origin of anal \\ m eye; 

 D. II, 10-117; A. 112; P. 23 (or 22); V. 11; branchiostegals 7; scales 

 between lateral line and middle rays of first dorsal 8, giU rakers x +8. 



Eye circular, large, equaling length of short snout ; anterior profile 

 of snout nearly vertical, the distance from tip of snout to premaxil- 

 laries equal to interorbital width and 1 \ m distance from tip of snout 

 to anterior border of orbit; width of suborbital space If in eye diam- 

 eter; snout with usual median and prenarial prominences, each with 

 a smaU rosette of spinules; the lateral promuicnccs arc midway be- 

 tween orbits and tip of snout, the distance between them greater than 

 interorbital width and equal to eye; suborbital ridge low, ending 



1 Deep Sea Fishes, p. 131. 



