784 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



46. SARDA CHILENSIS (Cuvier and Valenciennes). 



One specimen from Callao, Peru. 



Family CARANGID^. 



47. OLIGOPLITES MUNDUS Jordan and Starks. 



Two specimens collected at Guaj^aquil. One of them has hut 16 

 anal ra3's, though in other respects it differs in no way from specimens 

 from Panama and Mexico. The usual number of anal ra} s is 19 or 20; 

 one specimen from Panama has IS, 



Mr. C. Tate Regan, comparing specimens of 0. sallens with a speci- 

 men of (}. Diundus^ reports them to be identical. His specimen of O. 

 mimdiis can not be correctly identified, as these two species differ 

 greatly. The maxillar}' of O. niutidns is 17 or 18 hundredths of the 

 length without caudal. In Bloch's figure of the type of O. sallens the 

 maxillar}' is only 12 hundredths, and a specimen of what is apparently 

 0. sallens from Brazil, in the Stanford University collections, has a 

 maxillary 14 hundredths. O. inundus has the head from 25 to 26^ 

 hundredths of the length, and the depth from 34 to 36 hundredths. 

 Bloch\s figure shows O. sallens to have the head 22 and the depth 29 

 hundredths, which agrees exactly with our Brazilian specimen of that 

 species. 



Mr. Regan's Pacific specimen may be 0. alius Giinther, as appar- 

 ently that species is very close to, if not identical with, O. saliens. 



48. NEPTOMENUS CRASSUS, new species. 



Head, 3 to 3i in length to base of caudal (3f to 4 including caudal); 

 depth, 3^ (4it). Eye, 5 to 5i in head; snout, 3| to 4; maxillary, 3i; 

 interorbital space, 3 to 3|. Dorsal, VII, I, 27; anal, II, 21; scales, 90 

 above lateral line; 97 inlateral line. 



Ventral outline of body more deepl}^ curved than dorsal; head rather 

 wide and blunt. Snout as viewed from above wide and broadly 

 rounded in front; its width in front of eyes a little greater than its 

 length. Jaws equal; mouth rather ol>lique. Anterior end of maxil- 

 lary' slightly below a level with middle of e3'e; posterior end reaching 

 to below front of eye or very slightly past. Maxillary not protractile; 

 the skin continuous from upper lip to top of snout. Teeth ver}'^ fine, 

 in a single even row on jaws; the lower row shutting inside of the 

 upper "like a box-lid," as described for the related genus Ouhlceps. 

 No teeth on vomer or palatines. Interorbital space broad and evenh' 

 convex. Top of head and snout of a rubber-like consistency and 

 thickly set with small pores. Eye considerably above the middle of 

 the height of the head (nearly in the middle in X. hrama)\ a line 

 drawn through the middle of the head longitudinally passes slightly 



