ANTARCTIC FISHES OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 255 



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Synopsis of the Species. 



[. Interorbital region distinctly concave. 



Interorbital width -jV, pectoral fin | the length of head . 1. variegatus. 



Interorbital width -^ or -^^, pectoral fin f the length of head . 2. angustifrons. 

 Interorbital width -^, pectoral fin -f the length of head . 3. diacanthus. 



II. Interorbital region nearly flat. 



Interorbital width \ the length of head, pectoral fin f . . .4. chilensis. 

 Interorbital width more than | the diameter of eye, which is ^ the length of 



head ; pectoral extending to vent ...... 5. veneris. 



Interorbital width 6| in length of head ; pectoral extending well beyond origin 



of anal .......... 6. decipiens. 



Interorbital width 5 in length of head ..... 7. psychrolutes. 



Interorbital width 3^ in length of head . . . . §. roseopictus. 



(l) Bovichthys variegatus. 



Richards., ''Erebus" and ''Terror" Fish., p. 56, pi. xxxiv. figs. 1-4 (1846); Giinth., Gat. Fish., 

 ii. p. 250 (1860). 



Depth of body 4 to 5 in the length, length of head 2f to 3. Diameter of eye 4 to 

 4| in the length of head, interorbital width 10. Interorbital region moderately 

 concave ; maxillary extending to below anterior ^ of eye ; opercular spine equal to or 

 less than diameter of eye ; 8 gill-rakers on lower part of anterior arch. Dorsal VII- 

 VIII, 18-20. Anal 14-15. Pectoral | the length of head. Caudal subtruncate. 

 Caudal peduncle longer than deep. Body with irregular dark cross-bars and usually 

 with pale spots and vermiculations ; spinous dorsal marbled, sometimes with a blackish 

 blotch posteriorly ; soft dorsal, caudal, and pectoral with series of dark spots ; anal 

 with a dark longitudinal band. 



S.E. Australia ; New Zealand and neighbouring islands. 



Here described from six specimens, 75 to 200 mm. in total length, including the 

 types of the species, from New South Wales (Haslar), New Zealand [Otago Mus., 

 Hutton), and Campbell Island {Southern Cross). 



(2) Bovichthys angustifrons, sp. n. (PL IV. fig. 1.) 

 Depth of body 4| to 5 in the length, length of head 2f to 2|. Diameter of eye 

 4 in the length of head, interorbital width 12 or 13. Interorbital region moderately 

 concave ; maxillary extending to below anterior -^ of eye ; opercular spine nearly as 

 long as diameter of eye ; 8 gill-rakers on lower part of anterior arch. Dorsal VIII, 19. 

 Anal 14. Pectoral | the length of head. Caudal subtruncate. Caudal peduncle longer 

 than deep. Dark spots on the head and blotches or bars on the body ; soft dorsal and 

 caudal with series of spots on the rays. 



Here described from two specimens, 160 and 145 mm. in total length, the former 

 from Tasmania (Allport), the latter without locality {Chatham Museum). 



