102, ACANTHOPSIS. 365 



dots ; caudal fin crossed by four bands. A streak runs from the 

 eye to the end of the snout. 

 Ceylon; Southern India. 



a, h, c. Many opecimens. Ceylon. 



d, e-g. Typical specimens of Platacantlius agvensis. Coast of Ma- 

 labar. From Mr. Day's Collection. 



The male has the inner pectoral ray modified into a flat semi- 

 osseous spine, which, however, is attached to the fin by the usual 

 interradial membrane, and not detached, as erroneously represented 

 in the figure given by Mr. Day. 



3. Lepidocephalichthys balgara. 



Cobitis balgara, Ham. Bitch. Fish. Gang. p. 356. 



Scliistura balgara, 3/' Clell. Ind. Ci/pr. p. 307, pi. 53. fig. 2 (copied 



from Buchanans MS. drawings). 

 aculeata, M'- Clell. I. c. 



D. 8. A. 7. 

 Origin of the dorsal fin opposite to that of the ventrals. Caudal fin 

 Truncate. Back and sides irregularly mottled with brown. (Bach.) 

 Kosi River ; Assam. 



102. ACANTHOPSIS. 



Acantliopsia, J'an Hasselt, Algem. Konst- en Letterh. ii. 1823. p. 133. 

 Prostheacanthus, Bhjth, Journ. As. Soc. Bengal, 1860, p. 167. 



Body much elongate ; snout compressed, very long ; a small 

 erectile bifid suborbital spine situated in advance of the eye. Bar- 

 bels eight, two of them belonging to the mandible. Dorsal fin 

 opposite to ventrals ; caudal bilobed. Air-bladder enclosed in a bony 

 capsule. 



East-Indian archipelago ; Tennasserim. 



1. Acanthopsis choerorhynclnis. 



Cobitis choirorhyncbos, Bleek. Nat. Tydschr. Ned. Ind. vii. p. 95. 

 ? Prostheacanthus spectabilis, Blyth, Journ. As. Soc. Bengal, 1860, 



p. 167. 

 Acanthopsis choirorrhynchus, Bleek. Cypr. Prodr. p. 60; or All. 



Ichtkyol. Cypr. p. 9, tab. 1. fig. 3. 



D. 12. A. 8. V. 7. 



Scales inconspicuous. Snout nearly twice as long as the re- 

 mainder of the head. Lower caudal lobe longer than upper. Back 

 with from twelve to fourteen dark cross bars, lateral line with a 

 series of from ten to twelve round spots ; a black spot on the base 

 of the upper caudal lobe. 



Sumatra ; ? Tennasserim. 



a. Type of the species. From Dr. Bleeker's Collection. 



