542 NEW FISHES FEOM PACIFIC COAST — GILBERT. 



The pores ou head are of larger size than iu xaniurus, and are regu- 

 larly arranged in series instead of in patches. 



The coloration is darker, the lower portion being uniformly brown 

 like the upper, instead of much paler. 



None of our specimens show any trace of the band of rough plates 

 ou back of tail characteristic of xaniurus, and developed in the young 

 of the latter of even smaller size. The adult of cephalus may or may 

 not agree with xanhirus in this respect. 



The teeth have mostly three cusps, the iuuer one often with a fourth 

 one at the base, a fifth sometimes present ou the outer side. 



A specimen 24 centimetres long, from station 2992, is a young male, 

 aud shows the claspers very fully developed, reaching the base of the 

 anal fin. This specimen is apparently nearl3' sexually mature, while iu 

 specimens of xaniurus of even larger size, the claspers are much less 

 developed. 



In the position of the second dorsal this species agrees with ScylUum 

 canescens Giinther, but differs in the much more anterior insertion of 

 the first dorsal, which terminates above the veutrals instead of behind 

 them. 



Several small specimens from station 3007 (3G2 fathoms), in the Gulf 

 of California, and a larger specimen from station 2992, at a depth of 

 460 fathoms. 



4. Catulus brunneus sp. nov. 



Body deeper, the head narrower, the snout longer aud sharper than 

 in Catulus xaniurus. Length of snout before mouth three-fourths 

 greatest width of snout and seven-eighths width of mouth. Kostrils 

 large, the fiap with a broadly rounded lobe, the inner ends of nostrils 

 separated by a space equaling three-fourths length of nostril. Distance 

 from inner end of nostril slits to mouth slightly less than one-third their 

 distance from tip of snout. 



Angle of mouth with a well-developed labial fold, that of lower lip 

 slightly shorter than that of upper, and extendiug half way to sym- 

 physis. 



Teeth similar in botli jaws, with two or three rows functional in the 

 upper jaw and four or five iu the lower. Median cusp of teeth long, 

 sharp, and strongly curved backwards and outwards. A single basal 

 cusp on each side, the inner cusp having frequently a smaller one at 

 base. 



Diameter of orbit about one-third snout, the spiracle separated from 

 it by nearly one-third its length. 



Gill openings of moderate width, the last two over base of i)ectorals 

 as usual. 



Pectorals more extensively connate with body than usual, the angles 

 rounded, but the posterior margin nearly straight. Leugtli of their 

 upper margin one-half distance from snout to third gill slit. 



