362 MR C. TATE REGAN ON THE 



6. Artedidraco, Lonnberg, 1905. 

 Swedish South Polar Exped., Fish., p. 39. 



Differs from Notothenia in the naked body, the absence of the lower lateral line, 

 the presence of a mental barbel, the broad union of the gill-membranes to the isthmus, 

 and the hooked operculuni. 



Coasts of the Antarctic Continent and South Georgia. 



(1) Artedidraco mirus. 

 Lonnberg, i.e., p. 40, pi. i. fig. 4 and pi. iv. fig. 14. 



Barbel club-shaped in the male. Depth of body 4 in the length, length of head 

 2f to 2|. Diameter of eye 3^ to 4 in the length of head ; iriterorbital width 1\ to 8f . 

 Dorsal III, 23-24. Anal 17. 

 Length of types 40 to 92 mm. 



South Georgia. 



(2) Artedidraco skottsbergi. 



Lonnberg, i.e., p. 48, pi. ii. fig. 7, pi. iv. fig. 15; Vaillant, Exped. Antarct. Francaise, Poiss., 



p. 46 (1906). 



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

 in the length of head, interorbital width 9 or 10. Dorsal III, 24-25. Anal 18-19. 

 Graham Land, 125 m. 

 Length of type 57 mm. 



(3) Artedidraco shackletoni. 



Waite, Brit. Antarctic Exped., Fish., \>. 15, pi. ii. (1911). 



Depth of body 4 in the length, length of head about 3. Diameter of eye 3| in the 

 length of head, interorbital width 10. Dorsal V, 27. Anal 20. 

 Length of type 146 mm. 

 Victoria Land ; off Cape Royds, Ross Island, 30 to 80 fathoms. 



7. Harpagifer, Richards., 1844. 

 "Erebus" and " Terror" Fish., p. 11. 



Differs from Artedidraco in the absence of the mental barbel and the development 

 of the operculum and suboperculum as strong spines. 

 Patagonia to Graham Land and Kerguelen. 



Harpagifer bispinis. 



Batrachus bispinis (Callionymus bispinus, Forster), Schneid., Block's Syst. Ichth., p. 45 (1801). 

 Harpagifer bispinis, Richards., i.e., pp. 11, 19, pis. vii. figs. 1-3, xii. figs. 8-9 ; Gtinth., Cat. Fish., 



p. 263 (1860); Smitt, Bihang Svensk. Vet.-Akad. Handl., xxiv., 1898, iv., No. 5, p. 17; 



Vaillant, Exped. Antarct. Francaise, Poiss., p. 44 (1906); Pappenheim, Deutsche Siidpolar- 



Exped., xiii., ZooL, v. p. 177 (1912). 

 Harpagifer palliolatus, Richards., i.e., p 20, pi. xii. figs. 5-7. 



Dorsal I1I-V, 21-25. Anal 16-20. Coloration variable, usually with bars or 

 blotches. 



(ROY. soc. EDIN. TRANS., VOL. XLIX., 280.) 



