REPORT ON THE SHORE FISHES. 23 



of which is two-sevenths of the length of the head ; mouth oblique, the maxillary of the 

 left side not quite extending to below the middle of the eye. The dorsal fin terminates 

 at a short distance from the caudal, the rays being rather short. Caudal rounded. The 

 left pectoral is scarcely longer than the right, and as long as the postorbital portion of 

 the head; the left ventral is opposite to the right; a conspicuous fleshy lobe behind the 

 left ventral, opposite to the commencement of the anal. Brown, indistinctly mottled 

 with darker, all the rays of the vertical fins finely dotted with brown. Length of speci- 

 mens, 6 and 7 inches. Off Cape Virgins ; 55 fathoms. 



Haplochiton zebra, Jen., Stream at Gray Harbour, Messier Channel. Lake at Porto 

 Bueno. Port Stanley, Falkland Islands. 



Myxine cmstralis, Jen., Grapler Harbour, Messier Channel. Port Chirrucha, Straits 

 of Magellan. 



in. THE FISH FAUNA OF THE TEMPERATE ZONE OF THE SOUTH PACIFIC. 



A. VALPAEAISO AND JUAN FEENANDEZ. 



During the month (November to December, 1875) the Challenger stayed at these 

 localities, several undescribed shore fishes were obtained. The fishes of Juan Feirnandez 

 have scarcely been touched, and those known are chiefly such as are caught for food. Dr 

 Steindachner has recently described several in a paper which will be quoted hereafter. 

 The fauna of Chile and Juan Fernandez might be described, without much exaggeration, 

 as a mixture of European and New Zealand forms ; of the fishes mentioned here two 

 being identical with, and four representative of, European species. 



Acanthias hlainvilli, Risso. 



This common species of the Mediterranean seems to be widely spread in the temperate 

 seas of the Southern Hemisphere. The British Museum possesses specimens from the 

 Cape of Good Hope, Tasmania, and New Holland, 



Specimens from Juan Fernandez have been noticed as Squcdus ferncmdimis in Molina 

 (Hist. Chile, p. 194), and as Sinnax fernandezianus in Gay's Chile (Zool., vol. ii. p. 365) ; 

 Dr Steindachner has described it as Acanthias fernandinus in Wien. S. B., 1875, vol. 

 Ixxi. p, 466. The distinctive characters given by the latter author are, in my opinion, 

 quite insufiicieut for the specific discrimination of the Juan Fernandez specimens. 



Female with foetus, preserved in salt. Juan Fernandez. 



