. Bulletin - United States National Museum. Science. no BULLETIN 188, UNITED STATES NATIONAL MUSEUM ' This is the largest of the local rasborids. For the Indo-Australian Archipelago a length of 17 cm. is reported; for Thailand the largest secured are about the same. The females average larger than the males. Specimens from Thailand labeled Rasbora dusonensis obtained from the Paris Museum are in the British Museum. Giinther and Weber and de Beaufort considered R. dusonensis a synonym of R. argyrotaenia. V%'' f v<^ â ^ ii^44. Figure 11.âRasbora argyrotaenia (Bleeker). Drawn by Nai Chote Suva
. Bulletin - United States National Museum. Science. no BULLETIN 188, UNITED STATES NATIONAL MUSEUM ' This is the largest of the local rasborids. For the Indo-Australian Archipelago a length of 17 cm. is reported; for Thailand the largest secured are about the same. The females average larger than the males. Specimens from Thailand labeled Rasbora dusonensis obtained from the Paris Museum are in the British Museum. Giinther and Weber and de Beaufort considered R. dusonensis a synonym of R. argyrotaenia. V%'' f v<^ â ^ ii^44. Figure 11.âRasbora argyrotaenia (Bleeker). Drawn by Nai Chote Suvatti; courtesy of the Thailand Government. Although Hora (1923b) identified as R. argyrotaenia two young specimens collected by Dr. Malcolm Smith in a waterfall stream on Koh Chang, the writer's own very extensive collecting in the streams of that island yielded only R. lateristriata. The common name for this fish throughout Thailand is pla slew. RASBORA RETRODORSALIS, new species Figure 12 Description.âDepth in standard length; least depth of caudal peduncle in its length and depth of body; head in standard length; eye equal to snout, about in head, in interorbital space; mouth very oblique, its anterior end on level with upper edge of pupil, its posterior angle reaching distance from tip of snout to eye; sym- physeal hook on lower jaw well developed and fitting into a deep notch on upper jaw. Squamation: Scales in lateral line 34, in transverse line from middle of back to base of ventral fin , in predorsal region 14, around caudal peduncle 16, with 9 rows of scales between the lateral lines counted over the back. Fins: Dorsal rays ii, 7, longest less than head, origin of fin over middle of a line from posterior margin of eye to terminal tube-bearing scales of lateral line and over fourteenth scale of lateral line; caudal. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabil
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