BY J. DOUGLAS OGILBY. 137 



E t y m o 1 o g y : — Macrurii>>; puyYos-, snout; in allusion to the 

 form of the snout, which bears a marked resemblance to that of 

 many of the Jlfncntridce, such for example as Coe'orhynchns 

 austmlis. 



D i s t r i b u t i o n : — Western Pacific. 



I would gladl}' have given to this genus the name Aspiduntus 

 of G. Cuyier, but that I am unaware whether any diagnosis of 

 that genus was ever j)ublished. Dr. Giinther apparently did not 

 know of any such definition, and merely quotes Quoy &■ Gaimard 

 for the name, making it synonymous with Riippell's Petroscirles. 



Macrurrhynchus maroubr.e, sp.nov. 



D. xii 30. A. 30. 



Body of nearly equal depth throughout. Length of head 4|, 

 depth of body 6|- in the total length; depth of head If, width of 

 head 2, of the flat interorbital region 3|, diameter of the eye 4 

 in the length of the head; snout projecting, macruriform, with the 

 profile convex, as long as the eye, the lower surface linear and 

 oblique, as long as the upper. The posterior angle of the mouth 

 extends to the vertical from the middle of the eye, the naked 

 portion of the retangular cleft on each side as long as the entire 

 dentigerous portion and 4-i- in the length of the head. Dorsal 

 fin commencing immediately behind the posterior border of the 

 preopercle, the distance between its origin and the extremity of 

 the snout being five-sixths of the length of the head; the rays are 

 of about the same length throughout, the middle ones being a 

 little the longer, 2|- in the length of the head: the anal originates 

 a little behind the vertical from the last spinous ray of the dorsal 

 and is consideraljly lower than that fin: the ventralsare composed 

 of slender rays, three-sevenths of the length of the head: the 

 pectoral fins are small, rounded, and symmetrical, their length 

 five-eighths of that of the head: caudal fin small, slightly and 

 evenly emarginate, 6^ in the total length, its peduncle short and 

 stout, with a dejDth of a half of that of the body. 



