48 



Habitat: Sumatra (Palembang in river Musi, Lematan 

 Enim, river Bantung, Lake Sialong Lotong) ; Java; Borneo 

 {Sintang! '), Banjermassin, Pontianak, Singkawang, Sambas, in 

 rivers; Sarawak, Sebruang); Celebes (Makassar!). — Malayan 

 Peninsula, Siam (Bangkok), Cochinchina, China, Formosa. 



4. Microphis heterosoma (Blkr.). 



Sytigiiathus heterosoma Bleeker, Nat. Tijdschr. Ned. Indie II. 1851, p. 441. 

 Sytignathus heterosoma 'Bleeker, Verb. Batav. Genootsch. XXV. 1853, Tros- 



kieuwige Visschea, p. 15. 

 Syngnathus heterosoma Kaup, Cat. I,ophobi-. Fish, 1856, p. 62. 

 Microphis heterosoma Bleeker, Act. Soc. Sc. Indo-Neerl. VIII. i860, 8. Bijdr. 



Vischfauna Sumatra, p. 72. 

 Microphis heterosoma Dumeril, Hist. nat. Poissons II. 1870, p. 590. 

 Doryichthys heterosoma Giinther, Cat. Brit. Mus. VIII. 1870, p. 180. 

 Microphis lieterosovia Duncker, Mitt. a. d. naturh. Mus. Hamburg, XXXII. 1915, 



p. 48. 



D. 65 — 68; A. 4; p. 22 — 23; Rings 26 + 38 ; subdorsal rings 

 6 + 7-8. 



Much elongate; in females the 131^10 20th trunkring ventrally 

 inflated. Shields transversely striated, the edges slightly serra- 

 ted, somewhat behind the middle of their length produced 

 into a spine. Inferior cristae of trunk and tail continuous, 

 median cristae of trunk and superior cristae of tail subconti- 

 nuous but the}^ are interrupted on the last ring of the trunk. 

 The median cristae running below the superior cristae of the 

 tail (Fig. 17, n°. 9 and 10). Operculum with a complete longitudinal 

 keel and fine radiating ridges below it. Head 5 — 5^'4 in length. 

 Tail longer than trunk. Vent behind the middle of the total 

 length. Snout compressed, about thrice or more than thrice 

 longer than postorbital part of head and more than twice 

 longer than remaining part of head. Caudal minute. Green 

 above, silvery below. Each trunkring laterally with a vertical 

 dark patch in its middle. Caudal blackish. Length 290 mm. 

 [A specimen of Bleeker's collection in the Leiden Museum 

 seen by us]. 



Habitat: Borneo (Sambas river, river Kapuas) ; Natuna 

 Islands. 



i) This specimen in the Leiden Museum, was erroneously identified by 

 Vaii.lant (Notes Leyden Museum XXIV, p. 14) as "J//V;-<;'//i!/.r //^tow^wrt" (Blkr.). 



