BY J. DOUGLAS OGILBY. 9] 
sented to the A.F.A.Q. Museum by Mr. Harry A. Howes ; 
Cat. No. 537. 
The genus J'ylosurus Cocco, may be conveniently 
subdivided as follows :— 
SrenocauLus: Body short and deep, strongly compressed, 
the caudal peduncle without a trace of a lateral keel. 
Type — Belone krefftti, Gunther.  (o7evds, narrow ; 
Kavos, a Stalk). 
TyLosurus: Body long, slender, and subcylindrical, the 
caudal peduncle without or with but a slight trace of a 
lateral keel. Type—Tylosurus cantraini Cocco. Tiros, 
callus ; dupa, a tail). 
EurycauLus : Body short and broad, the caudal peduncle 
strongly depressed, with a wide sharp-edged lateral 
keel. Type—Belone platyura Bennett. (€upis, wide; 
kavdds, a Stalk). 
KXOCGTID AL. 
HEMIRHAMPHUS WELSBYI sp. nov. 
Long-beaked Gar-fish. 
PD. 13; A. 12 or 13; Se. 50 to 52-6. Body robust, 
its width 3 of its depth, which is 8 in its length. Length 
of head 22, of predental portion of the lower jaw, which is 
+ longer than the rest of the head, 4,% in that of the body. 
Premaxillary plate wider than long. Diameter of eye 
equal to or a little less than the interorbital width and 3 
of the postorbital portion of the head. Dorsal and anal 
fins scaleless, the former originating far in advance of and 
12 time the length of the latter ; last dorsal ray produced, 
not reaching to the base of the caudal. Caudal fin forked, 
the middle rays % of the diameter of the eye and 4% in the 
lower lobe, which is 53 in the length of the body and 14 
in the predental portion of the lower jaw. Pectoral fin 
with 12 rays as long as the head behind the angle of the 
mouth. Ventral inserted midway between the root of the 
caudal and the middle third of the pectoral, its length 
1Z in that of the head from the tip of the premaxillary 
plate ; inner ray produced, not reaching to the vent. Back 
dark green; sides with a conspicuous silvery band, which 
is widest below the dorsal fin, tapers towards either ex- 
tremity, and is bordered above by a blue line ; lower parts 
