22 PISHES OF NEW ZEALAND. 



Dr. Hector informs me that tliis sjiecies lias an air bladder. Total 

 length about 12 inches. 



Pelamys. 



The first dorsal extending on to the second ; seven to nine finlets ; 

 scales of the pectoral regions forming a corslet ; teeth of moderate 

 sti-ength ; none on the vomer ; a longitudinal keel on each side of the 

 tail. 



Seas of temperate and tropical regions, 



33. PELAMYS CHILBNSIS. C. and V.? CM. 



Tunny. 

 P. chilensis, Glinth., II., 368. 

 D. ISl^^lVIIL; A. ^^|VII. 



The length of the pectoral is one-seventh of the total. 



Back bluish ; belly silvery ; five or six slightly oblique longitudinal 

 streaks on the sides (Giinth.) 



Pacific Ocean. 



I refer, provisionally, a skull that is in the Museum to this species. 

 The head is 22| inches in length, and the snoiit 7 inches ; the diameter 

 of the eye is 2^^ inches, and the interorbital space 9 inches. There is a 

 single row of short i-ather strong conical teeth in each jaw, none on 

 the vomer ; the palatine bones are gone ; the maxillary extends to the 

 centre of the eye ; pi'jeopercvilum and operculum entii-e, both fringed 

 posteriorly. 



Cook Straits. 



TRACHINID^. 



Body elongate, low, naked or with scales ; teeth in villifovm bands, 

 sometimes with pointed and conical canines ; the infraorbital ring does 

 not articulate with the prreoperculum ; 07ie or ttoo dorsal ^ns, the spinous 

 2)ortion less develojjed than the soft ; anal similar to the soft doi'sal ; 

 ventrals with one spine and five rays ; head large and depressed ; eyes 

 often directed upward. 



Kathetostoma. 



Eyes on the upper surface of the head ; cleft of the mouth veii;ical ; 

 head cuirassed with bony plates ; body naked, or with very minute scales ; 



