184 Annals of tlic South African Museum. 



shrimp trawl, 24 fms., South Head Tugela Eiver N. by W. 

 4^ miles. 



OTOLITHUS RUBER, Schneid. 



Teeth, a single curved canine at symphysis of lower jaw, one on 

 each side of symphysis of upper jaw. Depth of body slightly over 

 4^ times in total length excluding caudal, length of head nearly 

 3^ times. Snout a little longer than interorbital width and slightly 

 over 1^ times diameter of eye, which is 6 times in length of head. 

 Cleft of mouth rather oblique, maxillary reaches to vertical of 

 middle of orbits; lower jaw projects slightly beyond upper; 

 distance from eye to upper edge of maxillary bone equals | 

 diameter of orbit ; preoperculum serrated, more coarsely at angle ; 

 operculum with 2 soft spines. 



Dorsal ix, i 28 ; spines weak and flexible, slightly filamentous ; 

 2nd longest, -^ length of head. Pectorals over f length of head. 

 Ventrals ^ length of head. Anal ii 7 ; 1st spine minute, 2nd 

 weak, about i length of head and i length of soft rays. Caudal 

 slightly rounded. Scales cycloid; lat. 1. 50, tubes arborescent, 

 lat. tr. f^-. 



One specimen, 270 mm. in length, procured by the ss. Pieter 

 Faurc by shrimp trawl, 26 fms., Amatikulu Conical Hill NW. 

 74 miles. 



Five smaller specimens, ranging from 142 mrn. to 178 mm. 

 in length, procured by the ss. Pieter Faurc by shrimp trawl, 

 12-14 fms., off South Head of Tugela Eiver, appear to belong 

 to this species. They differ in having the caudal distinctly wedge- 

 shaped, the middle ray being longest ; the scales are ciliated ; 

 and the canine on each upper jaw is sometimes double some- 

 times that on the right and sometimes that on the left. 



FAMILY ACANTHUKIML 



ACANTHURUS TRIOSTEGUS, L. 



Teeth, 7 to 8 lobate incisors on either side of upper jaw, and 

 9 on each side of lower jaw. Depth of body If to 2 times in 

 total length excluding caudal, length of head 3 to 34- times. 

 Snout 3 to 3^ times diameter of eye, which is If to l T 7 y times 

 in interorbital width and 4^- to 5 times in length of head. Snout 

 slightly concave, a slight protuberance over eyes. 



