336 



MR C. TATE REGAN ON THE 



3. Bovichthys, Guv. and Val., 1831. 

 Hist. Nat. Poies., viii. p. 486. 



Differs from Gottoperca in the naked head and body, the abnormal operculum, 

 which has a very strong spine and a superior process which articulates with the post- 

 temporal, and in the enlarged and partly free posterior anal rays. 



FIG. 5. Distribution of Bovichthys and Trematomus, respectively the northernmost and southernmost Kototheniiform genera. 



B = ovi?hthys. 1. B. variegaius; 2. B. angustifrons ; 3, B. diacanthus; 4. B. chileiais ; 4a. B. sp. ; 5. li. veneris ; 



6. B. decipiens ; 7. B. psychrolutes ; 8. B. roseopictus. 



T = Trematomus. 1. T. neivnesii ; 2. T.nicolai; 3. T.borchgrevinkii; 4. T. brachysoma ; 5. T.vicarius; 6. T.bernacchii; 



7. T.hansoni; 8. T. loemibergii, 



Note that in Bovichlhys none, in Trematomus most, of the species appear to be circuni polar. 



Chile ; Argentina ; Tristan da Cunha and Gough Island ; St Paul ; S.E. Australia 

 and Tasmania ; New Zealand and neighbouring islands. 



(ROY. soc. EDIN. TRANS., VOL. XLIX., 254.) 



