114 PROCEEDINGS OF THE ACADEMY OF 



1. CHIRONEMUS georgianus, Cuv. et Val. 



Chironemus georgianus Cuv. el Val. Hist. Nat. de Poissons, tome Hi. , p. 78. 

 Habitat. KiDg George's Sound. 



2. Chironemus maculosus, Guother. 



Threpterius maculosus Richardson, Proc. Zoological Society, 1850, p. TO, 

 pi. 2, figs. 1, 2, 

 Habitat. King George's Sound. 



3. Chironemus marmoratus, Gunther. 



Chironemus marmoratus Gunther, Catalogue of Acanthopterygian Fishes, 

 vol. ii., p. 76. 

 Habitat. Western coast of Australia. 



Subfamily LATRIDIN^E Gill. 



Teeth acutely conical and generally small. Dorsal fin with its spinous and 

 soft portions subequal or one not much longer than the other ; the spinous por- 

 tion has from fifieen to twenty-three spines, behind which the membrane is 

 notched. Ventral fins generally acutely angulated, the first branched ray be- 

 ing the longest. Caudal fin with the angles more or less obliquely produced 

 aDd acute or rounded. The vertebral column is composed of a moderately in- 

 creased number of vertebrae, all those examined having fourteen abdominal 

 and twenty caudal. 



This subfamily appears to be a very natural one, all the species having the 

 game general physiognomy, and equally differing from the representatives of 

 the other groups of Cirrhitoids. The genera are rather numerous; their prin- 

 cipal distinctive characters are given in the following synopsis. Several species 

 have been retained provisionally in genera to which they apparently do not 

 belong, the descriptions alone of their several describers not being sufficiently 

 characteristic to enable one to positively allocate them. 

 Ventral Ads angulatt-d, the first branched ray being longest ; 

 caudal with its lobes produced ; dorsal not acutely 

 notched behind each spine LATRIDIN^E. 



I. Branch iostegal lays 5 or 6 Latrideb. 



A. Anal fin nearly coterminal with dorsal, and with 

 more than 30 rays. 



Vomerine teeth Latris. 



Vomerine teeth obsolete Latridopsis. 



AA. Anal fin with 30 branched rays or less. 



H. Teeth only in the upper jaw Mendosoma. 



BB. Teeth in both jaws. 



C. Spinous dorsal convex or arched. 

 D. Branchiostegal rays VI. 



1. Head high and much decurved. Anal 



ob'ong and nearly uniformly high..Dactylopagrus. 



2. Head conic. Anal oblong. Dorsal 



and anal spines robust Acantholatris. 



3. Head conic. Anal short, produced 



at its anterior angle, and when ex- 

 panded with the raj ed margin ver- 

 tically truncated or emarginated...Chirodactvlus. 

 DD. Branchiostegal rays V. Scales small 



(L. 1. 75.) Chilodactylus. 



CC. Spinous dorsal elevated in front, preceded 

 by three graduated spines and obliquely 

 incurved behind Goniistius. 



II. Branchiostegal rays III Nematodactyli. 



Teeth of jaws uniserial Nematodactylus. 



[March, 



