AET. 7 NEW SIAMESE FISHES SMITH 33 



dorsal having 54, anal 45, and caudal 16, median caudal rays longer 

 than head without snout and longer than longest dorsal and anal 

 rays ; ventral rays 4 ; dorsal rays not extending on snout ; pectoral on 

 each side rudimentary. 



Color: Upper side light brown, with numerous spots of darker 

 brown of irregular side and shape on body and head; anterior mar- 

 gin of head between mouth and gill opening blackish, with a well 

 defined rounded white spot on chin; vertical fins, in addition to 

 having small, irregular dark brown spots, marked by 4 large round- 

 ish well-defined blackish spots on proximal part of both dorsal and 

 ventral fins, these spots more than twice diameter of eye ; under side 

 of body rich reddish-brown, becoming less intense toward head which 

 is white except for a dark area about mouth and on chin below white 

 spot on dextral side. 



Type. — A specimen 9.4 cm. long taken in the Lopburi River at 

 Lopburi, Central Siam, October 22, 1926. Cat. No. 90311, U.S.N.M. 



Remarks. — This species is not rare at Lopburi but as yet is 

 known only from that locality. The maximum size attained is 

 but little if any larger than the type. In a second specimen, 8.4 

 cm. long taken at the same time and place as the type, the brown 

 markings have a tendency to form vermiculations, and the bronze 

 color of the left side stops some distance behind the head, leaving 

 more than half of under surface white. In the reduction of the 

 pectorals to mere rudiments, this species shows a transition from 

 Synaptura to Achiroides in which latter genus the pectorals are 

 entirely absent. 



GOBIELLA, new genus 



Similar to Mistichthys H. M. Smith, known only from a mountain 

 lake in Luzon, Philippine Islands, but with the first dorsal fin 

 containing five spines instead of three. Size minute ; body elongate,, 

 strongly compressed posteriorly; mouth moderate, oblique; teeth in 

 bands; body posteriorly covered with large ctenoid scales, head and 

 anterior part of body scaleless; dorsal fins well separated, the an- 

 terior with five short spines, the posterior dorsal and the anal fins, 

 elevated and with moderate number of rays. 



GOBIELLA PELLUCIDA, new sp«cies 



Description. — Elongate, head and anterior part of body very 

 slightly compressed, posterior part of body much compressed; depth 

 under first dorsal fin equal to head less snout and contained 3.8 

 times in standard length; head comparatively large, 3.3 in length; 

 eye in anterior half of head, large, 4 in head and much greater than 

 the blunt snout ; mouth very oblique, maxillary extending to a point 

 32895—31 3 



