1422 Catalogue of Malayan Fishes. [Dec. 



Length of the ventrals, 2-| inch. 



„ „ „ first gill-opening, If 



„ „ fifth do., J 



Distance between the first gill-openings, 3f 



Greatest breadth of the disk, 30f 



The stomach is elongated cylindrical, half the length of the body ; 

 the intestines equal the length of the body. 



This fish agrees in several characters with Russell's Eregoodoo Ten- 

 kee, No. IX. R, {not No. IX. N, from St. Helena.) M. M. Muller 

 and Henle express some doubt as to the identity of Russell's No. IX 

 and Cephaloptera olfersii, Muller, (Plagiostomen, page 185) from Brazil. 

 According to the description of M. M. Muller and Henle, the latter differs 

 from the present species in the following characters. In C. olfersii the 

 distance of the mouth from the head is in proportion to the breadth of 

 the mouth as 3 to 13 ; in the present species that distance is \ of the 

 breadth of the mouth, or as 1 to 3. In C. olfersii the length of the 

 cranial fins compared with their distance is as 8 to 1 1 ; in the present 

 species both are equal. In C. olfersii the length of the pectorals, 

 measured from their origin on the skull, equals half the breadth of the 

 disk ; in the present species their length is less than the breadth of 

 the disk. 



