562 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



following colors while alive : Body grayish green, with 5 dark green 

 blotches meeting across the back and 4 dark green spots along the 

 side; belly pale salmon; miderside of head pale yellow; dorsal fin 

 hyaline, with some vague dark green lines at base; caudal fin green, 

 its lower edge bright yellow; anal fin salmon anteriorly, basal part 

 of posterior two-thirds greenish; ventral fins salmon; pectoral fins 

 brownish, with a bright yellow edge. 



The vernacular name on the Menam Chao Phya and Menam Bang- 

 pakong is fla heua. 



Genus APOCRYPTODON Bleeker 



Apoonjptodon Bleekeb (453), Arch. Need. Sci. Nat., vol. 9, p. 327, 1874. (Type, 

 Apocrj/pfes madurbnsis Bleeker.) 



The gobies of this genus are mostly marine but some species wander 

 into fresh water. The elongate body is nearly cylindrical, finely 

 scaled, and of plain coloration. The horizontal mouth is large, ex- 

 tending beyond a vertical from the posterior border of the eyes, and 

 the single row of widely spaced teeth in each jaw is supplemented by 

 a postsymphyseal pair on the mandible. Three species are ascribed to 

 Thailand, as follows : 



Iff. Scales in longitudinal series .50 to 60, in transverse series between second 

 dorsal and anal fins 13, in predorsal region 26 to 30. 

 2a. Cheeks scaled to point under anterior part of eye ; body marked with 5 or 

 6 light brown cross bands, which may meet over back; pectorals dark 



olive or blackish, with a white lower edge bleekeri 



2&. Cheeks scaled only on upper posterior part ; body marked with 6 round dark 

 brown spots along middle of side alternating with 5 vertically elongate 

 dark brown spots extending downward from midline of back; head and 

 body with numerous small round black spots ; pectorals greenish, with a 



black lower edge malcolmi 



1&. Scales in longitudinal series 165, in transverse series between second dorsal 

 and anal fins 35, in predorsal region 60; head largely covered with very 

 small scales ; gray-brown above, white below, large blackish gray blotches 

 on caudal peduncle, caudal fin with 16 or 17 fine, wavy, transverse blackish 

 lines edwardi 



APOCRYPTODON BLEEKERI (Day) 



Apocnjptes MeeJccri Day, 1876, vol. 1, p. 300. pi. 64, fig. 3 (Seas of India, Malay 



Ai'chipelago). 

 Apocryptodon bleekeri Fowler, 1939, p. 53 (Krabi). 



This species, described by Day from India, is reported by him to 

 range thence to the Malay Archipelago. Its claim to a place in this 

 catalog rests on the record by Fowler of 48 specimens, 16.5 to 23 cm. 

 long, from Krabi (Ghirbi) on the western side of Peninsular Thailand, 

 taken in September 1936. 



