BY J. DOUGLAS OGILBY. 651 



ill a lesser degree.* The second portion is fairly perfect and is 

 composed of 121 rays, the longest of which are inserted well 

 behind the middle of the fin and are about one-fourth longer than 

 the head; these rays are exceedingly slender and fragile; and each 

 ray is provided with a strong basal spine on either side, and with 

 numerous spinules irregularly arranged along its entire length. 



Ventral fins : — -The ventral is inserted well behind the base of 

 the pectoral, and consists of eight rays, all of which are articu- 

 lated, the first, however, being considerably stronger than the 

 others, while the last is split into three portions to the very base; 

 all the rays are more or less imperfect, and are quite smooth. 



Pectoral fins : — The pectoral is moderately developed and is 

 composed of fourteen smooth rays, the second of which is the 

 longest, about a third of the length of the head; it is inserted 

 somewhat lower than the suture between the opercle and sub- 

 opercle, in front of the posterior edge of the scapular arch and 

 is directed upwards and backwards. 



Cai(,dal fin: — The caudal fin is very narrow at the base and 

 consists of two strong outer rays and five or six slender inter- 

 mediate ones ; the outer rays are quite smooth, without any 

 indication of external spinules ; the length of the fin is about 

 three-eighths of that of the head. I am unable to find any 

 indication of a lower caudal lobe, the upper lobe being continued 

 along the same axis as the vertebral column. 



Lateral line : — The lateral line originates behind the eye, 

 immediately above the upper angle of the scapular arch, and runs 

 along the middle of the side below the vertebral column to the 

 inferior border of the caudal peduncle, each poriferous area being 

 armed with a short, stout, conical spine. 



* So far as can be seen from the remnants these rays were, articulated, 

 and it is therefore incorrect to call them spines as is usually clone; there is 

 in fact but one dorsal fin, the anterior rays of which are somewhat distinct 

 from the posterior portion, as in some heterosomatous fishes, such 

 Noto^iema. 



