1GS Report on some Fislies received from the Sitang River. [No. 2, 



¡series more or less distinct. Tail with one large spot towards the end of 

 each lobe, and two or three more intermedíate ; also an irregular iow 

 of spots tovvards its base. Pectoral, ventral, and anal fins, colourle^s 

 or nearly so. 



D. 10.— A. 6.— P. 11.— V. 6.— O. 17. 



A very prettily marked fish. Length 5 in., of which liead to g- i 11- 

 cover 1 in. ; and lieight at dorsal \ in. Tenasserim provinces. 



IV. — Acantiiopis, Agassiz. The ordinary spined Loches with 

 compressed head, of which the European A. t^inia is typical. 



Of these, some are of more elongate shape, with the dorsal fin 

 placed somewhat backward and distinctly posterior to the ventrals ; 

 tail rounded more or less ; and the head not so much compressed as 

 in the others, with the ejes placed high, but not approximated as in 

 Prostheacanthus. Such are Ac. TJ3NIA, (L.), and the Indian Ac. 

 gongota and Ac. curcuíia, (B. H.) Also 



Ac. Beiidmc-het, nobis, n. s. Of a palé reddish clay-colour, thickly 

 freckled over with blackish except on the abdominal región ; about a 

 dozen larger black s[>ots along the lateral line, more or less distinct; 

 the dorsal aspect uniíbrmly dark or nearly so : head minutely speckled : 

 bifúrcate spíne small, with subequal prongs : well developed cirri : 

 dorsal and caudal minutely speckled throughout ; the anal less so ; 

 and pectorals and ventrals dark-centred. 



D. 8.— A. Q.—P. S.—V. G.—G. 17. 

 Length 3| in., of which head f in. : depth of body \ in. Tenas- 

 serim provinces. 



Others have a shorter body, with the dorsal in the middle of the 

 entire length and opposite to the ventrals ; the head small and much 

 compressed. To this división appertains Ac. guntea, (B. H.), which 

 is the only species of Loche common about Oalcutta. 



Ac. miceopogon, nobis, n. s. Head and body very much com- 

 pressed, the tail í'urcate, and cirri minute : posterior prong of the 

 bifúrcate spine conspicuously longerand stronger. Body palé, blotched 

 and mottled with light ashy-brown, and shovving a more or less 

 obscure series of ten transversely oval ashy spots along the lateral 

 line, and a black one at base of tail : each tail-lobe marked with four 

 oblitvie dark cross-bands, the last of them terminal: four transverse 



