206 CEYLON PEARL OYSTER REFORT. 



Saurida tumbil (Bloch). 

 Galle and Aripu ; very numerous. 



Saurida nebulosa (Solander). 



One specimen was dredged f mile north-north-west of Foul Point, Trincomalee, 

 Station XXIV. 



SILUKLD^E. 



Freshwater fishes were not collected, so that this family is only slightly 

 represented. 



Arius venosus, Cuv. and Val. 



Three specimens, the largest of which is ahout 12 inches long, were obtained at 

 Station XVII., on the pearl banks off Aripu. 



PLEUEONECTID^E. 



Flat fishes are, as might be expected, very well represented in this collection. 

 Eight genera and 16 species altogether were collected. 



Psettodes erumei (Bl. Schn.). 



Numerous specimens up to 14 inches long were obtained from the pearl banks off 

 Aripu. This species appears to be indifferently sinistral and dextral. The single 

 specimen examined was sinistral. 



Pseudorhombus arsius, Bleeker. 



Numerous specimens, varying in length from 12 inches downwards, were collected 

 from Station II., near Negombo, and from the pearl banks off Aripu. 



Solea oculus, Alcock. 



The only specimen belonging to this genus was obtained in Palk Bay, Station XIX. 

 It agrees in every particular with the beautiful species obtained by Alcock (3) in 

 Bengal Bay, 32 miles south-west of Puri. It is 3-^,- inches in extreme length. The 

 depth of water it was obtained from is curiously enough exactly that (7 fathoms) 

 recorded by Alcock. 



Synaptura cormita, Cuv. 



One specimen, about 5 inches in extreme length, was obtained in deep water 

 (25 to 30 fathoms) off Galle, Station XLVI. There are 14 dark bands on the 

 ocular side which are perfectly parallel and transverse to the long axis ; each is darker 

 at its margins. The anterior thickened first ray of the dorsal fin is markedly on the 

 blind side. The pectoral fins are short and thickened ; their bases are covered with 



