CHEILODACTYLIDAE 



61 



of the opposite side by a broad band passing just in front of the first dorsal spine ; 

 membrane of spinous dorsal fin dusky. 



Hah. Coast of South America from Rio de Janeiro southwards [to the Straits of 

 Magellan?]. 



In addition to the specimen mentioned above, two others (340, 365 mm.) from off the 

 coast of Uruguay (34 S, 50 W), presented to the British Museum by Dr Marini, 

 have been included in the description. The smaller of these two specimens (340 mm.) 

 has been selected as the holotype. 



Fig. 27. Cheilodactylus bergi. Holotype. x f . 



This species is very closely related to C. macropterus (Schneider) from Australia and 

 New Zealand, but may be at once recognized by the much broader supra-cleithrum. 

 According to Gill's synopsis of the Cirrhitiform Percoids (1862, Proc. Acad. N.S. 

 Philad., p. 114) this species would fall into the genus Dactylopagriis, 1 but it seems 

 doubtful whether the groups Dactylopagriis, Acantholatris and Chirodactyhis erected 

 by this author are worthy of more than subgeneric rank at the most. 



Cheilodactylus gayi, Kner. 



Cheilodactylus carmichaelis (non Cuvier and Valenciennes, 1830), Cuvier and Valenciennes, 1833, 

 H.N. Poiss., ix, p. 489; Guichenot, 1848-9, in Gay, Hist. Chile, Zool. 11, p. 197; Valen- 

 ciennes, 1850, in Cuvier, R. Anim., Disciples Ed., Poiss., pi. xxxi, fig. 2. 



Chilodactylus gayi, Kner, 1869, Reise ' Novara' ', Zool., 1, 5, Fische, p. 92. 



Chilodactylus monodactylus (non Carmichael), Steindachner, 1875, SitzBer. Akad. Wiss. Wien, 

 lxxi (1), p. 456; Giinther, 1880, Shore Fish. 'Challenger' , p. 24; Delfin, 1901, Cat. Peces 

 Chile, p. 70; Steindachner, 1903, Zool. Jahrb., Suppl. vi, p. 205; Rendahl, 1921, Nat. 

 Hist. J. Fernandez and Easter Isd., in, p. 55. 



Depth of body 2§ to nearly 3 in the length, length of head about 3f . Snout (measured 

 to tip of upper lip) if times as long as eye, diameter of which is about 4 in length of 



1 Misprinted Dactylosparus on p. 117. 



