112 PROCEEDINGS OF THE ACADEMY OF 



Denies omnes in maxillis tricuspidati, vel lanceolati, lobis externis parvis, in 

 seriebus externis majores. Dentes vomerini velutini. 



Body oblong, highest above or behind the ventral fins, covered with small 

 scales. Head scarcely longer than high, with the profile behind the eyes ob- 

 liquely straight, or little concave, and in front very oblique. Preorbital bones 

 aa high or higher than long. Eyes elevated and mostly anterior. Preoper- 

 culum with an entire membranous border. Mouth small, transverse and ter- 

 minal. Teeth in the old, narrow, thin and little cuspidate, arranged in a band on 

 each jaw; the teeth of outer rows are largest. Front of vomer with a small 

 patch of villiform teeth slightly extending on the palatine bones. Branchios- 

 tegal rays six on each side. Dorsal fin convex and with sixteen spines, the last 

 of which are small. Anal fin with three spines and eight branched rays. 



This genus is nearly allied to the genuine Haplodactyli, but is distinguished 

 by the trilobation of all the teeth, and not only the large ones of the external 

 rows as in Haplodactylus. One species has been well described, and perhaps 

 another indicated. 



Dactylosargus arctidens Gill. 



Aplodactylus arctidens Richardson, Proc. Zoological Society of London, 

 1839, p. 96. 

 Habitat. Port Arthur. 



The following species is referred to the genus Dactylosargus with doubt, being 

 only known through the description of Paikinson : 



Dactylosargus meandratos Gill. 



Scisna meandrata Parkinson MSS. 



Aplodactylus meandratus Richardson, Transactions of the Zoological So- 

 ciety, vol. iii., p. 83. 

 Habitat. New Zealand. 



CRINODUS Gill. 



Synonymy. 

 Haplodactylus sp. Giinthcr. 



Dentes tricuspidati in maxilla superiori pluriseriati, uniseriati in inferiori. 

 Vomer inermis. 



Body oblong, highest above or behind the ventral fins, covered with rather 

 small scales. Head little longer than high, with the forehead flattened, and 

 the snout obtusely rounded and projecting. Eyes elevated and mostly ante- 

 rior. Preopereulum entire and with a membranous margin. Mouth narrow, 

 horizontal, and situated beneath the snout. Teeth elongated and tricuspidate, 

 with the terminal lobe largest, arranged in a band on the upper jaw, and uni- 

 serial on the lower : palate unarmed. Branchiostegal rays five on each side. 

 Dorsal fin with its spinous portion convex, and with about seventeen spines, 

 the last of which are short. Anal with three graduated spines and six branched 

 rays. 



Crinodus appears to be decidedly different from either Haplodactylus or Arcti- 

 dens, the snout being more protuberant, the teeth of the lower jaw confined to 

 one row, and only five branchiostegal rays being present on each side. 



This also is represented by a single known species. 



Crinodcs lophodon Gill. 



Haplodactylus lophodon Giinthcr, Catalogue of the Acanthopterygian Fishes, 

 &c, vol. ii., p. 435. 

 Habitat. Coast of New South Wales. 



Subfamily CHIRONENEMATIN.E Gill. 



Teeth acutely conical and small. Dorsal fin with its spinous portion gene- 

 rally more or less longer than the soft, and with thirteen to fifteen spines, the 



[March, 



