cclvi 



Burma, Init most mimerous in situations but little removed from tiilal iu- 

 llueiice. Attiiiiis to 8 inches in length. 



Genus — Poltacantbus, C/iv. and Fal. 



Branchiostegals six: jiseudobrancJiioi glandular or absent. Bodi/ 

 oblong, compressed. Mouth small and but little protractile. Opeicles sjnne- 

 less. Teeth small and fixed in the jaws ; palate edentulous. Dorsal Jin 

 single, the spinous portion of much greater extent than the soft : the anal of 

 a similar character: ventral with one spine and five well developed rai/s, some 

 of which are usuall// elongate. Scales rather large, ctenoid. Lateral line 

 interrupted, partialli/ or even entirely absent. Air-vessel simple. Pj/loric 

 ajipeudages few. 



'29. Polijacanthus cupanus, Cuv. and Val. Punnum, Tarn. 13. vi. 



D. "6^, A. HmI) Ij. 1. 29-32, L. tr. jTs- Greenish, fins barred, with a dark 

 spot at the base of the caudal, and the prolonged ventral ray scarlet. 

 Found in ditches, irrigated fields, ;uul shallow fresh and brackish waters, 

 but slightly above tidal influence, both on the Coromaudel and Malabar 

 sides of the Madras Presidency. It rarely exceeds 3 inches in length. 



Genus — O&'Prrojujsnus, Comm. 



Trichopus, Lac(5p. 



Branchiostegals six. Bodi/ moderately elevated, compressed. Opercle 

 spineless : opercular pieces finely serrated in the immature. Mouth small, 

 protractile. Teeth in jaws Jine and fixed ; palate edentulous. A single 

 dorsal fin, its spinous portion sometimes in excess, but usually less in ex- 

 tent than its soft part : anal spines in varying numbers. Outer ventral ray 

 long,JiUform ; the remainder mostly rudimentary. Scales of moderate size, 

 ctenoid. Lateral line interrupted or absent. Air-vessel present. Pyloric 

 ajjpendages two. 



30. Ospliromenus nobilis, McClell. D. fEf, A. /j, L. 1. 28-30. 

 Lateral line absent Two white bands along the sides, and a third 

 along the base of the anal fin. A small fish, found in tlie nortii and 

 north-east portions of Bengal. 



Genus — TitiCBooJSTER, Bl. Selin. 



Trichopodus, Ham. Buch. ; Colisa, Cuv. and Val. 

 Branchiostegals Jive. Branchial arches with toothed tubercles. Oper- 

 cle spineless : pre-opercle serrated, as is also usually thepre-orbital. Mouth 

 small and but little protractile. Teeth small, fixed in the jaws; palate 

 edentulous. A single dorsal fin, the spinous of much greater extent than 

 the soft: anal spines similar, but the rayed portion more developed : ventral 

 Jin consisting of one long Jiiform ray. Scales of moderate size, ctenoid. 

 Air-vesstl bijid posteriorly , the two ends being prolonged. Pyloric appendages 

 few. 



31. Trichogasler fasciatus,'SS\. Schn. Kun-gee,Vxa^.: Pich.ru,'S>\\\iS.: 

 Ktissua/i and Coilia, Ooriah : Ponundi, Tel. : liga-pin-thick-kouk and Ntpi- 



pkyin-thaleb, Burm. B. vi. D. -5:12, A. 13^77, L. 1. 30-31. Greonisli, lianded, 

 and some of the fms rod-spotted. This little fish extends throughout 



