102 * THETIS ** SCIENTIFIC RESULTS. 



Coloui-s. — General colour (in spirits) yellowish-brown, the lower 

 parts reddish-yellow, mandibular, isthmus and branchiostegals 

 pink. The markings are in the form of black blotches, which, 

 judging from our specimens, are very constant in position and 

 extent. Along the dorsal profile are three spots, the first below 

 the 5-7 and the second at the base of the 8-10 spines; the 

 third spot is smaller and situated beneath the 2-4 rays. The 

 opercle is bordered behind by a large blotch which reaches to 

 below the eighth spine ; this is succeeded by two spots, of which 

 the anterior is the lower. Another extensive blotch occurs 

 beneath the dorsal rays : all these show bright blue reflections. 

 On the head the dark markings are to be found between the eyes 

 on the occiput, the temporal bone and behind the eye. Fins 

 yellowish, the pectoral with a smoke-coloured blotch near its 

 margin, and the dorsal membrane dark at its edge. 



Four examples were obtained, of which the largest measures 

 305 mm. ( = 12 inches) in total length. 



The species was taken in comparatively deep water, namely, 

 from 55 to 78 fathoms, off the coast between Port Jackson and 

 Port Kembla. 



The genus Sebastes has been considerably subdivided, principally 

 as affecting American species. I have, however, so far, been 

 unable to identify S. thetidis with any of the genera characterised, 

 and therefore, for the present, merely leave the species in Sebastes, 

 as originally understood. 



NEOSEBASTES, Guichenot. 

 NEOSEBASTES ROBUSTUS, Gunther. 



BULLROUT. 



Centropogon robustus, Giinth., Cat. Fish. Brit. Mus., ii., 1860, 



p. 128. 

 Centropogon trochelii, Steind., Sitz. K. Akad. Wiss. Wien., liii., 



1866, p. 440, pi. iv., fig. 1. 



Station 51. 



The fact of our having trawled this species in Shoalhaven 

 Bight extends the known distribution in a southerly direction ; 

 its range, therefore, as far as is known, is from this station to 

 the Mary River, Queensland, where it was obtained by the " dial- 



