AET. 7 NEW SIAMESE FISHES SMITH 41 



rounded, short, median rays 1.5 in head; anal similar to second dorsal, 

 the rays 1,12; ventrals equal to postorbital part of head; pectorals 

 broad, bluntly pointed, reaching to vertical from last dorsal spine. 



Color: Nearly uniform pale olive-yellow; a narrow black median 

 dorsal stripe from tip of snout to base of caudal, extending on caudal 

 and spreading so as to involve upper rays ; a broad black lateral band 

 extending from mouth through lower half of eye to base of caudal 

 and thence nearly to posterior margin of caudal fin ; the lateral band 

 involves the lower jaw, and on posterior half of body is below the 

 horizontal axis ; fins pale yellow. 



Type. — The only known specimen is 23 mm. long, taken in a rocky 

 tide-pool on Koh Chula (Kite Island), off mouth of Chantabun 

 Kiver, Gulf of Siam, March 17, 1930. Cat No. 90324, U.S.N.M. 



CREISSON SEALEI, new species 



Description. — Body moderately compressed, rather elongate; back 

 not arched but dorsal profile from behind eyes to tip of snout gently 

 decurved; depth 4.5 in standard length, least depth of caudal ped- 

 uncle 2 in head; head 3.3 in standard length, its width equal to 

 depth; mouth wide, oblique, posterior end of maxillary reaching 

 vertical from anterior edge of eye; tongue truncate; teeth in 4 or 

 5 irregular rows in anterior part of each jaw, the rows reduced in 

 number at sides, outer row in each paw enlarged and canine-like, 

 the largest being a backward-curving pair at side of lower jaw, 

 some of the innermost teeth in lower jaw also enlarged; lower jaw 

 slightly the longer, the enlarged teeth projecting in front of upper 

 jaw when mouth is closed; cheeks tumified; anterior nostrils tubular, 

 posterior nostrils large, open, in front of lower half of eye, with a 

 large pore above; eyes latero-superior, inclined upward and out- 

 ward, 1.5 in snout and less than 1 diameter apart; scales on body 

 large, ctenoid, about 40 in lateral series, 13 in transverse series be- 

 tween origin of second dorsal and anal, 10 around narrowest part of 

 caudal peduncle; scales before dorsal about 34, small, cycloid, ex- 

 tending to a point slightly in advance of posterior border of eyes; 

 a compact patch of small scales on upper border of opercle and 

 cheek, and a few scattered scales on upper half of cheek as far for- 

 ward as eye; interorbital space and snout naked; base of pectorals 

 and caudal thickly scaled ; a large anal papilla. 



Fins : Dorsal formula VI-I,10 ; spines in first dorsal long, slender, 

 the tips of the third to sixth reaching second dorsal when depressed ; 

 second dorsal separated from first dorsal by a space equal to diam- 

 eter of eye, the rays long, the posterior ones longest and reaching 

 base of caudal when depressed; anal rays 1,9, similar to second 

 dorsal; caudal broad, rounded, its length greater than head less 

 snout ; ventrals broad, as long as postorbital part of head, the f renum 



