378 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
anofled, with long- pseudobrachia and 3 actinosts; branchiostegals, 5; 
no pseudobranchia?. 
a. Ogcocephalhuv: Disk with frontal region elevated and the snout more or less 
produced forward, the tail stout; orbit lateral; teeth on vomer and palatines; 
rostral tentacle present. 
b. Gills 2; disk broad Malthopm, 5 
aa. Halieutseinx: Disk with frontal region depressed, not elevated aljove the rest 
of body; eyes partly superior; snout rounded, obtuse in front; tail slender, 
c. Dorsal fin present; vomer and palatines toothless; disk subcircular; gills 2J; 
mouth rather large, subvertical; prickles rather strong Halieutxa, 6 
5. MALTHOPSIS Aleock. 
Maltliopsisi X1.COCK, Ann. Mag. Nat. Hist., 1891, j). 26 (hUeus). 
Disk triang-ular, usually wider than long, when expanded about as 
long a.s rest of body (including caudal lin); middle line of head ele- 
vated, the forehead more or less projecting beyond mouth; rostral 
tentacle present, its cavity about as wide as high; mouth small; minute 
teeth on vomer and palatines. Gills, 2. 
Small fishes of the sea bottoms of Asia; differing from the New 
World genus Ogcocephalus {2falthe), chiefly in the reduced gills, 
{fxaXdr]^ Malthe, a synonym of Ogcocephalus; otpig, appearance.) 
10. MALTHOPSIS TIARELLA Jordan, new species. 
Head triangular, measured to gill opening, a little more than one-half 
of length exclusive of caudal fin, the elevated snout at the apex; a 
stout, protruding supraoral spine on the tip of snout, the height of 
which from eye is 7\ in length; base of triangle of disk rather longer 
than the sides; the length of the latter equal to that of head. Eyes 
large, lateral, their diameter nearly equal to the height of supraoral 
spine. Snout short, a])out two-thirds of eye; mouth smaller than eye; 
a groove above mouth containing a small rostral tentacle; the cavity 
higher than wide; interorbital space one-half of the height of supra- 
orbital spine ; width of trunk at axil tJf in length. Length of tail 2h : dis- 
tance between vent to anal fin slightly more than two in tail; D, 7; A, 3; 
P. 10 (?); C, 6; tip of anal rays extending to root of caudal fin; root 
of caudal fin to anterior base of dorsal fin 3 in length; length of 
caudal fin 3i in length; ventral fin slender; pectoral fin i in length; 
depth of caudal peduncle equal to height of cavity above snout. 
Cranial region elevated in front, depressed posteriorly; trunk slen- 
der, somewhat deeper than wide, tapering toward caudal fin; spines on 
supraorbital and occipital region rather prominent, forming two rows, 
leaving a clear space along median line of head. Three rows of spines 
on edge of head, the middle row terminating in lower jaw, the upper 
row dilating under eye and continued to the end of maxillary. Pos- 
terior angle of head ending in a shaip triangular protuberance with 
four spinules on tip. Body and wrists covered with bony })lates in 
