180 RECORDS OF THE AUSTRALIAN MUSEUM. 



Hypnarce subnigra, Dum^ril. 



Hypnos suhnigrum, Dura., Rev. Zool., 1852, p. 279. 



The name Hypttos, given by Dumeril in 1852, is preoccupied in 

 Lepidoptera, Hubner having used the form Hyptia in 1816. I 

 therefore propose Hypnarce for the genus. 



Locality. — Rottnest Island. 



Gymnotiiorax richardsonii, Bleeker. 



Ahircena richardsonii, Bleek., Nat. Tijds. Ned. Ind., iii., p. 296. 



This species has been recognised from the Abrolhos, and I now 

 record it from the mainland. The two examples received were 

 taken at Fremantle. 



Ophisurus serpens, Linnmns. 



Though generally stated to be from Australia, this widely dis- 

 tributed species appears to have been definitely recorded for the 

 Continent only from Port Jackson and Port Stephens on the east 

 coast. We now have it from Pinjarrah and Australind, both south 

 of Fremantle, on the west coast. 



Atherina lacunosa, Forster. 



Though recorded from South Australia, this widely distributed 

 species does not appear to have been previously recognised from 

 the west. The examples received are from Fremantle. 



Upeneichthys porosus, Cuvier and Valencieniies. 



The known range of this species, common on the eastern and 

 southern shores as far as Adelaide, is now extended to Western 

 Australia. The examples received were taken at Mandurah in 

 1897. U. vlamingii was recorded from the west by Castlenau. 



Scomber colias, Gmelin. 



The only character insisted upon for the separation of iS". colias, 

 Gmel., and S. pneumatophorus, De la Roche, is the number of 

 spines in the first dorsal — seven for the former, and ten to twelve 

 in the latter. It is now generally conceded that both are of the 

 same species. In the Atlantic form, the posterior adipose eye-lid 

 is described as crossing over the lower edge of the anterior lid ; in 

 ours, the anterior lid crosses the posterior one. 



The examples from Western Australia, obtained at Fremantle, 

 agree with S. colias in having but seven dorsal spines and with 

 lb', pneumatophorus in the constitution of the adipose eye-lids. 



In recent descriptions, .S'. colias is stated to have nine dorsal 

 spines. 



