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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 79 



large, strongly ctenoid, smaller on anterior part of body, opercles 

 scaled, cheeks and nape naked; 26 scales in lateral line, 11 in trans- 

 verse series below second dorsal, 12 around caudal peduncle. 



Fins: Dorsal rays V-I,8; dorsal spines slender, the third longest, 

 more than 0.5 depth of body, and equal to base of fin ; second dorsal 

 separated from first by a space equal to diameter of eye, longest 

 rays equal to depth of caudal peduncle ; caudal short, broad, bluntly 

 pointed; anal under second dorsal and similar thereto, the rays 1,8; 

 ventrals long, longer than pectorals and equal to postorbital part 

 of head ; pectorals short, broad, 0.5 head, extending to a point under 

 last membrane of spinuous dorsal. 



Life color : General color, pale creamy yellow ; body with 4 irregu- 

 lar black crossbands, the first under the first dorsal and as wide as its 

 base, extending nearly to median line below; the second narrower, 



Figure 17. — ^Thaigobiella sua 



extending from anterior half of base of second dorsal obliquely 

 downward and backward to posterior part of anal; the third nar- 

 row and extending vertically posterior to second dorsal and anal; 

 the fourth, the most intense, running vertically across posterior 

 part of caudal peduncle at a distance of half its width from caudal 

 fin ; a blackish band across nape and posterior part of head, another 

 extending downward from median line of head posterior to eye^ 

 and another under eye ; top of head between nuchal and postorbital 

 bands glistening white; margins of lips and orbits black; base of 

 pectorals wdth a very sharply defined black vertical blotch; base 

 of dorsal and anal fins black, fins otherwise hyaline. 



Type. — A specimen 2.7 cm. long from a canal in Bangkok, Central 

 Siam, August 26, 1924. Cat. No. 90315, U.S.N.M. 



(Sua, the Siamese name for the tiger.) 



Remarks. — This attractive but diminutive goby is as yet known 

 from a single specimen. It was kept alive in a small glass jar for 



