BY W. MACLEAY, F. L.S. 349 



and in some developed internally. Embryo with deciduous external y ills. 

 Males icith prehensile organs attached to the ventral fins. 



1. One external gill-opening, covered by a fold of the skin. (Order 



Holocephala, Gunther) . 



Family CHBLERIDiE. 



Form of the body elongate ; pectoral fins free ; anterior dorsal 

 fin above the pectorals. Mouth inferior. Ventral organs con- 

 fluent into two pair of laminoe in the upper jaw, and into one 

 pair in the lower. No spiracles. Males with a peculiar prehensile 

 organ on the upper part of the snout. Skin naked in the adult. 



Genus Calloriiynciius, Gronov. 

 Snout with a cartilaginous prominence, terminating in a 

 cutaneous flap. Two dorsal fins, the anterior with a very long 

 and strong spine. Extremity of the tail distinctly turned upwards, 

 with a fin along its lower edge, but without one above. Anal fin 

 close to the caudal, short and deep. 



South Pacific, Cape of Good Hope. 



1070. Callorhynchus antarcticus, Lacep. 



Gunth., Cat. Fishes VIII., p. 351. Syn. C. Peronii and Capensis, 

 Duiu. C. Australis, Shaw and Owen; and C. tasmanius, 



Eichardson. 



The second dorsal fin elevated in front. Pectoral fin very 

 large, extending generally to, or even beyond, the base of the 

 ventral. Claspers sub-cylindrical, with a channel along the 

 interior, opening by a lateral slit. Adult with an obscure 

 blackish lateral band. Young with the upper parts black, and 

 with whitish bands and spots. The young have also a double 

 series of very small dermal spines on the crown of the head, 

 and on the back of the trunk and tail ; these spines are also 



