PAPERS READ. 



ON AN UNDESCRIBED DULES FROM NEW GUINEA. 

 By E. Pierson Ramsay, L.L.D., &c., and J. Douglas-Ogilby. 



(NOTES FROM THE AUSTRALIAN MUSEUM.) 

 DuLES NITENS. Sp. IIOV. 



B. VI. : D. 10/11 : A. 3/11 : V. 1/5 : P. 14 : C. 17 : L. lat. 

 51-53 : L. trans. 5/13 : Veit. 10/15. 



Length of head 4^, of caudal fin 45, height of body 3;^ to 3|^ in 

 the total length. Eye — large, its diameter 2| to 2| in the length 

 of the head, y of a diameter from the end of the snout, and | of 

 the same apart. Interorbital space almost flat. Snout with a 

 slight concavity ; occiput rugose, terminating posteriorly in an 

 angular ridge. Lower jaw much the longer ; cleft of the mouth 

 of moderate size, and oblique. The maxilla reaches to beneath the 

 anterior third of the orbit, and is dilated and rounded posteriorly. 

 Opercle with two flat pungent spines, the lower of which is the 

 longer ; sub- and inter-opercle very finely serrated, the teeth 

 becoming obsolete in old examples ; preopercle with fine denticu- 

 lations on both limbs, those on the rounded and slightly produced 

 angle the strongest ; lower edge of preorbital, and post-temporal 

 bones finely serrated. Teeth — Yilliform on jaws, vomer, and 

 palatines. Fins — dorsal spines moderately strong, increasing in length 

 to the fifth, which measures | of that of the head ; from thence 

 they decrease quickly in height to the ninth, which is about | of 

 the last ; the rays are not nearly so high as the spines, but the 

 base of the soft portion of the fin is 7 of the spinous, while that of 

 the soft anal is rather more than the soft dorsal ; the dorsal 

 commences above the 6th scale of the lateral line, and ends above 



