450 



base of the pectoral ; its spines increase in length to the eighth 

 or ninth, and then decrease again. The third dorsal is 

 highest anteriorly and is composed of simple rays. Anal fin 

 much longer than the second dorsal and formed of simple 

 rays, which are curved and thickened towards their tips ; they 

 increase in length to about the twentieth, and the last is 

 behind the vertical of the hinder dorsal ray. Pectoral large, 

 the longest upper simple ray reaching well beyond the origin 

 of the anal ; the six or seven lower rays are simple and 

 thickened, those above them are bifid. Ventrals jugular, 

 each consisting of two simple free rays, the inner of which is 

 the longest. Caudal rounded, the two outer rays of each side 

 simple, the others bifid. 



Colour. — Light-grey in alcohol, each scale with a dark 

 margin of microscopic black dots ; five dark cross-bars descend 

 from the back to the middle of the sides, where they divide 

 into irregular intermediate bands on the lower half of the 

 body. A broad dark bar crosses the cheek from the eye, and 

 there are several less definite ones crossing the lips. Anterior 

 dorsal almost black, second and third dorsals crossed by 

 irregular dark oblique bars. Anal with about eleven dark 

 spots at its base, from which oblique bars extend on to the 

 fin; a broad white marginal band. Pectorals and caudal with 

 numerous irregular brownish cross-bars. 



Described from three specimens 25-55 mm. long, the 

 largest of which is figured, and is selected as the type. Two 

 of these are the specimens which were doubtfully recorded 

 by Waite as T. nigripenne, but his recent paper upon some 

 species of Tripterygion < 7 ) proves that they cannot be identified 

 with that species. They are allied to G. siriaticeps, Ramsay 

 and Ogilby, ( 8 ) but consistently differ in the increased number 

 of spines in the first and second dorsal fins. 



Loc. — The two larger examples were collected at Lord 

 Howe Island, and the smallest at Norfolk Island, taken by 

 Mr. A. M. Lea. 



Family TETRAODONTIDAE. 



Genus Spheroides, Dumeril. 

 Spheroides altipinnis, Ogilby. 



Tetrodon altipinnis, Ogilby: Eec. Austr. Mus., i., pt. 6, 1891, 

 p. 110. 



Amblyrhynchotus oblongus, Waite: Rec. Austr. Mus., iii., 

 1900, p. 207 (not Tetrodon oblongus, Bloch.). 



Tetraodon hypselogeneion, Waite : loc. cit., v., 1903, p. 38 (not 

 Tetraodon hypselogeneion, Bleeker). 



<7) Waite: Rec. Cantb. Mus., ii., pt. 1, 1913, p. 1. 



(8) R,amsav and Ogilby: Proc. Linn. Soc. N.S. Wales, (2), iii., 

 1888, p. 419. ' 



