42 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7!) 



.25 length of fin; pectorals longer than ventrals and extending be- 

 yond their tips but not reaching anal papilla. 



Color (in alcohol) : Back and sides light greenish with vague 

 darker green areas, many scales with pearly bluish spots; under 

 side whitish ; head dusky ; dorsal, caudal, and anal membranes dusky 

 bluish ; ventrals distinctly bluish, with narrow white edge ; pectorals 

 dusky. 



Type. — A specimen 15 cm. long including caudal fin, taken in 

 the Menam Chao Phya at Paknam, Central Siam, May 30, 1930. 

 Cat. No. 90318, U.S.N.M. 



Remarks. — This species, as yet known from a single specimen, 

 appears to possess all those characters assigned to the genus Creisson 

 by Jordan and Scale ^ and by Herre ^ that is, fully squamate body 

 with the anterior scales smaller; scaleless interorbital ; small scales 

 on upper part of opercle and cheek ; 6 elongate spines in first dorsal 

 and 10 elongate soft rays in second dorsal; teeth in a number of 

 rows in each jaw, with the anterior row enlarged and one or two 

 lateral backward-curving canines in lower jaw. 



The only species of this genus heretofore known, G. valAdus Jor- 

 dan and Scale, inhabits the Philippines. In that species, however, 

 there are 29 to 32 scales in longitudinal series, 10 or 11 scales in trans- 

 verse series, and about 17 scales before the first dorsal; the body is 

 deeper and the dorsal profile strongly arched; the anal rays are 

 1,7 or 1,8; and the coloration is markedly different as regards dor- 

 sal and caudal fins, although the general color of body is similar 

 in the two forms. 



The species is named for Mr. Alvin Scale, coauthor of the 

 genus, in slight recognition of his valuable contributions to the 

 ichthyology of the eastern Pacific. 



PARAGOBIODON KERRI. new species 



Description.. — Form comparatively short and deep, the greatest 

 depth of body, at first dorsal spine, 3.25 in standard length ; profile 

 strongly convex, snout short, blunt, about equal to eye; head large, 

 deep, and broad, its length greater than its depth and equal to depth 

 of body, its greatest breadth equal to its length ; eye 4.5 in head, 1.5 

 interorbital space; mouth small, oblique (but nearer horizontal than 

 vertical), the maxillary extending to vertical from pupil; a row of 

 short, wide-spaced spines or papillae on preopercle; least depth of 

 caudal peduncle somewhat less than its length and 0.5 head; scales 

 in longitudinal series 22. 



Fins : Dorsal fins rather high, the spinous dorsal somewhat lower 

 than the soft dorsal, whose height is about 0.8 greatest depth of body 

 and equal to postorbital part of head ; dorsal fins completely separate 



• Pishes of the Islands of Luzon and Panay, 1907. 

 ' Gobies of the Philippines and the China Sea, 1027. 



