FRESH-WATER FISHES OF SIAM, OR THAILAND 97 



scales between lateral line and base of ventral fin ; general color 

 yellow, with a broad blue median longitudinal band from head to 

 base of caudal fin and a narrower golden longitudinal baud on 



each side of median one aequipinnatus 



46. No backward-projecting spine on anterior orbital rim ; general color 

 silvery, with a blackish longitudinal stripe or band on side beginning 

 below dorsal fin and extending to base of caudal fin ; head 3.5 in 

 standard length ; mouth oblique, maxillary reaching vertical from 

 anterior margin of eye ; scales between midline of back and lateral 

 line 8.5 ; circumpeduncular scales 14 ; branched dorsal rays 11, 



branched anal rays 14 peninsulae 



36. Only maxillary barbels present ; origin of anal fin opposite dorsal origin ; 

 no backward-projecting spine on anterior orbital rim ; 2 scales between 

 lateral line and base of ventral fin ; 4 to 6 dark longitudinal bands 



on side suvatti 



26. Branched dorsal rays 7; branched anal rays 10; both rostral and maxillary 



barbels present. Allodanio, new subgenus ponticulus 



16. Lateral line absent or normally incomplete; branched dorsal rays 6 or 7; 

 branched anal rays 10 to 13. Subgenus Be^vchydanio. 

 6a. Lateral line incomplete. 



7a. Lateral line extending beyond base of anal fin (exceptionally to base of 

 caudal fin) ; barbels entirely absent or reduced to a stumpy pair at 

 corners of mouth ; 5 to 10 dark cross bands on anterior part of body and 



a dark longitudinal band thence to caudal fin shanensis 



76. Lateral line ending before base of ventral fins ; two well-developed pairs 

 of barbels ; a scarlet band extending in brown of side from base of 



caudal fin to a point under or before dorsal fin albolineatus 



66. Lateral line entirely absent. 



8a. Maxillary barbel extending slightly beyond gill opening; rostral barbel 

 reaching behind eye; back reddish; on side and opercle a broad dull 

 blue band within which are 4 bright scarlet narrow longitudinal stripes, 

 one from gill opening to caudal base ; dorsal and caudal fins dusky, with 



pale red edges ; anal fin dusky, the rays pale red kerri 



86. Maxillary barbel extending far beyond base of pectoral fin ; rostral barbel 

 reaching beyond preopercle ; back and sides with longitudinal bands 

 and stripes of blue, orange, and orange-red; dorsal fin green basally, 

 chrome yellow distally, with a broad vermilion margin ; caudal fin pale 

 green with central part and posterior margin scarlet ; anal fin scarlet 

 at base, distal half chrome-orange with a narrow sky-blue edge, a deep 

 green median band pulcher 



DANIO (DANIO) REGINA Fowler 



Danio malabarica Masya and Indrambakya, 1932, p. 280 (Koh Samui). 



Danio regina Fowleb, 1934b, p. 342, fig. 6 (Nakon Sritamarat). — Myers, in Herre 



and Myers, 1937, p. 56 (Chong waterfall stream). — Fowleb, 1939, p. 67 



(Trang). 



In a fish collection from the Trang district of Peninsular Thailand, 

 Fowler (1939) found over a hundred specimens of this species, the 

 largest 12.5 cm. long. Specimens taken in the same locality in 1932 

 have a conspicuous black spot as large as the pupil in a pale circular 

 area just behind the upper end of the gill opening; this spot, only 



