510 PROCEEDINGS OF THE ACADEMY OP 



Charnpsocephalns is readily distinguished from Chcenichthys by the absence of 

 plates along the lateral line, and the different form of the dorsal fin. 



Champsocephalus esox Gill. 



Cbaenichthys esox Giintker, Annals and Magazine of Natural History. 

 Habitat. Port Famine. 



Subfamily PAGETODIN.E Gill. 



Pinna dorsalis pone nucham incipiens, parte spinosa vix vel non articulata 

 discreta. Pinna; ventrales longas et graciles. 



Dorsal fin commencing close behind the nape, with no marked distinction be- 

 tween the spinous and articulated portions. Both the dorsal and anal fins are 

 represented to be low. Ventral fins long and slender. 



As the genus Pagetodes is only known by an unfinished drawing, made during 

 the voyage of the Erebus and Terror, its characters are very imperfectly ascer- 

 tained, and it may even belong to a different family from Chcenichthys, but it is 

 improbable that such is the case; its physiognomy is quite similar to that of 

 the latter genus, and the characters, if correctly represented, will be doubtless 

 found to be of secondary value, as above considered, and not indicative of 

 family rank. 



The species for which the subfamily is established is an inhabitant of high 

 Southern latitudes. " When the ships were in the high latitude of 70, 10 / S., 

 and longitude 178J , a fish was thrown up by the spray in a gale of wind against 

 the bows of the Terror, and frozen there. It was carefully removed for the pur- 

 pose of preservation, and a rough sketch was made by the surgeon, John Robert- 

 son, Esq., but before it could be put in spirits, a cat carried it away from his 

 cabin and ate it." In allusion to the manner in which it was discovered, Sir 

 John Richardson has thought fit to name it Pagetodes. 



It is difficult to believe that the dorsal and anal fins are as low as represented 

 in the figure of the species, nor can the opercular region be represented cor- 

 rectly. The drawing is certainly very unsatisfactory for the establishment of a 

 distinct group, but as the genus has been named, it is advisable to correctly 

 classify it in order that it may not be renamed, at the same time premising that 

 its arrangement is entirely provisional, and that it may possibly even prove to 

 belong to the same group as Chcenichthys. 



Genus Pagetodes Richardson. 

 Pagetodes Richardson, Ichthyology of the Erebus and Terror, p. 15. 



Rostrum inerme. Pinnae pectorales obliquiter truncatae. Pinna caudalis 

 emarginata. 



Snout unarmed. Teeth in each jaw conspicuous. Dorsal and anal fins low. 

 Caudal fin emarginated. Pectoral fins moderate, behind obliquely truncated 

 downwards and forwards, rounded at their upper angle. Ventral fins very slender 

 and tapering. 



Pagetodes. 



Pagetodes Rich., Ichthyology of the Erebus and Terror, p. 15, pi. 8, fig. 3. 



Synopsis of the HARPAGIFEROIDS. 



BY THEODORE GILL. 



Family HARPAGIFEROHLE Gill. 



Synonymy. 

 Goboidae part. Richardson. 

 Callionymoidei part. Bleeker. 



Trachinidae (Pseudochromides part. Gwither, 1860. 

 Trachinidae (Nototheniina?^ part. Giinther, 1861. 



[Dec. 



