Il4 ON NEW OR INSUFFICIENTLY DESCRIBED FISHES 



preorbitals ; a broad blackish band along the middle of 

 the body from behind the eye to the caudal peduncle, 

 separated by a short interspace from a large oval black 

 spot in front of the root of the caudal ; fins uniform pale 

 rufous. 



Total length (of type) 190 millim. 



Aru Islands. 



Type in the A.F.A.Q. Museum ; Cat. No. 1394. 



In company with the West Australian C. rubescens 

 and the East Australian C. macleayi this Tuskfish forms 

 a well-marked group, characterized by the smaller size, 

 more slender habit, and uniform or nearly uniform colora- 

 tion, which in the species mentioned is rufous brown in 

 marked contrast to the more brilliant livery of the larger 

 species. With these threa should also be associated De 

 Vis' G. olivaceus. 



CH^TODID^. 

 Megaprotodon maculiceps sp. ncv. ^ 



D. xiv 18 ; A. iv. 15 : Sc, 6-46-15 ; L.l. 36. Depth 

 of body ] -75, length of head 3-15, of pectoral fin 3-4, of 

 ventral 3-4 in length of body. Diameter of eye 2-4, width 

 of interorbit 2.75, longest dorsal spine 1.35, longest anal 

 1-25, length of caudal ] -5, depth of peduncle 2-75 in length 

 of head. 



Upper profile of head moderately steep and undulous 

 owing to a slight protuberance above the posterior half 

 of the eye. Snout slightly produced and obtusely pointed, 

 1-25 in the eye-diameter ; interorbital region convex ; jaws 

 equal ; maxillary extending to below the anterior nostril 

 Preopercle serrated. Scales moderate, those on the middle 

 of the trunk somewhat larger than the anterior scales and 

 much larger than those on the tail, which rapidly decrease 

 •in size posteriorly : lateral line but little arched in front, 

 not extending to the caudal peduncle. 



Dorsal fin broadly anal narrowly rounded behind, 

 the spinous portion of the former twice as long as the soft 

 portion ; 4th and 5th dorsal spines equal and longest, a 

 little longer than the soft rays. Second anal spine longest 

 and strongest, somewhat longer than the dorsal spines 

 and one fourth longer than the rays, which are slightly 

 •shorter than those of the dorsal. Caudal fin feebly 

 rounded. Pectoral pointed, the 4th ray longest, reaching 



