“TERRA NOVA” EXPEDITION. 
These have the interorbital region narrow, but resemble the fessellata 
Zone. 
group in the scaling of the head. 
(4) the marionensis group, differing from the last in that the cheeks and opercles 
are scaly above, naked below. This includes only N. marionensis, from 
Marion Island, and N. angustifrons, from South Georgia. 
Fic. 3.—Distribution of Bovichthyidae : P. Pseudaphritis urvillii ; C1, Cottoperca gobio ; C 2, C. macroph- 
thalma ; © 3, C. macrocephala ; B1, Bovichthys variegatus ; B 2, B. angustifrons ; B3, B. diacanthus ; 
B4, B. chilensis; B5, B. patagonicus; B6, B. veneris ; B7, B. decipiens; B8, B. psychrolutes ; 
B9, B. roseopictus. 
(5) the coriiceps group, with the upper surface of the head naked and the opercles 
scaled only on the upper part of the operculum. This includes the last eight 
species and is the only group found in both zones. 
