1860.] Beport on some FisJies received from Sitang Biver. 153 



irregular speckled-whitish transverse bands are constant, preceded 

 each by a blackish band, the first white band being anterior and the 

 second posterior to the adipose dorsal ; a row of whitish spots on 

 the membrane of the dorsal ; two dark bands, one of them basal, on 

 the ventrals ; and a black band at base of anal fin. Length 3 in. ; 

 of caudal filament 1 in. more. Tenasserim. 



To this genus must also be referred the (Pimelodus) conta, B. H., 

 with a deeply furcate tail, the upper lobe of which is longer and 

 more attenuated; as also the (JP.) carnataca, Jerdon, and the (P.) 

 áspera, McClelland, O. J. N. H., IV, 401, and pl. XXIV, f. 2. 



Another distinct type occurs in the (P.) cenia and (P.) tiri- 

 descens, B. H. These are referred doubtfully by Dr. Bleeker to 

 bis Hemipimelodus; as also (P.) jatius, B. H., which is a true 

 Arius, as already shewn. If the Nallah Jellali of Russell (pl. 

 CLXX) be a proper Hemipimelodus as assigned by Dr. Bleeker, 

 then the Cenia group is quite distinct ; and the (P.) telchitta, 

 B. H., again, represents a special type with additional species in 

 S. India. 



Ambltceps, nobis, J. A. S. XXVII, 281. Type Amb. clecutiens, 

 nobis, ibid. (' Cobitis-like Siluroid,' XXIV, 712). To this genus 

 should be referred the (Pimelodus) mangois, B. H., figured among 

 his unpublished drawings ; but the form is rather less elongated, 

 the tail more sharply forked, the eyes (to judge from the drawing) 

 more distinct, and the adipose dorsal better defined and less distant 

 from the first dorsal, than in A. cíecutiens. 



A. tentjispinis, nobis, n. s. A third species, distinguished by the 

 slenderness of its short dorsal and pectoral spines, and also by the 

 fineness of its eight cirri : eyes minute and difficult to be distin- 

 guished : adipose dorsal indistinct and pointed posteriorly : six soft 

 rays to the dorsal and nine to the anal, the first of the latter being 

 short and the next two successively longer. Colour uniform dark 

 greenish olive-brown. The lateral line wanting in all the species. 

 Length 2 in. A single specimen procured at Gházipur by Dr. 

 Jerdon, and presented by him to the museum. 



Gltptosternon, McClelland. It appears that as many as four 

 very distinct generic types have been brought together under this 

 ñame by Mr. McClelland, in the five species which he has describud 



