BY "W. MACLEAY, P.L.S. 251 



of the snout and the hind margin of the orbit. Snout rather 

 produced, scarcely equal in length to the diameter of the eye, 

 which is one-third of the length of the head, and less than the 

 width of the interorbital space, which is slightly concave. The 

 pectoral fin extends beyond the dorsal and anal, nearly to the 

 rudimentaiy rays of the caudal. Ventral fins nearly midway 

 between the eye and the root of the caudal, extending to the end 

 of the base of the anal. The dorsal commences a little behind 

 the origin of the anal, its anterior rays are half as long as the 

 head. There are twenty-nine scales between the occiput and the 

 origin of the dorsal fin, and six or seven longitudinal series of 

 scales between the origin of the dorsal and the lateral line. 

 Pectoral with an oblique white band across its lower half and 

 with a broad whitish edge. Ventrals white, the middle rays 

 greyish. 



Australia (GKinther). 



878. Exoccetus robustus, Gunth. 

 Gunth., Cat. Fishes VI., p. 289. 



D. 14. A. 10. L. lat. 49. 



The height of the body is two-elevenths of the length (without 

 caudal) ; the length of the head two-ninths. The depth of the 

 head equals the distance between the extremity of the snout and 

 the hind margin of the orbit. Snout a little produced, scarcely 

 equal in length to the diameter of the eye, which is two-sevenths 

 of the length of the head, and less than the width of the inter- 

 orbital space, which is quite flat. The pectoral fin extends beyond 

 the dorsal and anal, nearly to the rudimentary rays of the caudal. 

 Ventral fins nearly midway between the nostril and the root of 

 the caudal, extending beyond the middle of the base of the anal. 

 The dorsal fin commences far in advance of the anal ; its anterior 

 rays are not quite half as long as the head. There are twenty- 

 eight scales between the occiput and the origin of the dorsal fin, 



