46, SIPHONOGNATHtrS. 243 



the base of the pectoral to the lower part of the caudal. Sometimes 

 there are series of small violet spots along the back and sides : old 

 individuals have the silvery band interrupted and composed of spots. 

 (Rich.) 



New Zealand. 



44. CORIDODAX. 



Head naked, a few scales behind the orbit ; scales of the body- 

 small ; lateral line continuous. Snout of moderate extent. Dorsal 

 spines numerous, flexible. Pharyngeal apparatus ? 



New Zealand. 



1. Coridodax pullus. 



Spams pullus, Forst. Descr. Anim. ed. Licht. p. 306. 



Scarus pullus, Bl. Schn. p. 288. 



Odax pullus, Cuv. 8f Val. xiv. p. 304 (not figure). 



D. J^. A. ^. L. lat. 90. L. transv. 10/25. 



Three series of small scales behind the orbit; praeoperculum entire ; 

 caudal sublunulate (?). Uniform blackish-brown. 

 Queen Charlotte's Sound. 



a. Type of the species, fifteen inches long ; caudal fin destroyed ; 

 phary;igeals taken away. From Forster's Collection. 



45. OLISTHEROPS. 



Olisthops, Richards. Ann. if Mag. Nat. Hist. vii. 1861, p. 290, or Proc. 

 Zool. Soc. 1850, p. 74 



Head entirely naked ; scales of moderate size ; lateral Une con- 

 tinuous. Snout of moderate extent. Dorsal spines numerous, flexible. 

 Pharyngeal apparatus ? 



Australia. 



1. Olistherops cyanomelas. 



Richards. I. c. p. 291, or Proc. Zool. Soc. 1850, p. 75. pi. 3. figs. 1 & 2. 

 D. JJ. A. ^. L. lat. 48. L. transv. 7/14. 



The height of the body is contained five times and a half in the 

 total length. Blackish-green ; a bluish streak along the upper and 

 lower margins of the caudal and along the upper margin of the pec- 

 toral. (Rich.) 



King George's Sound. 



46. SIPKONOGNATHUS. 



Siphonognathus, Richards. Proc. Zool. Soc. 1857, p. 237 *. 

 Head and body very elongate ; snout long, as in Fistularia; upper 



* Mr. Gill, after having first adopted the view of Richardson, and after having 

 referred this genus to the family of " Aulostomatoids," now thinks (Proc. Acad. Nat. 

 Sc. Philad. 1862, p. 233) that it is the type of a peculiar family, remarking at the 

 same time that " I had first perceived its affinities, but that I appear to be wrong 



