BY W. MACLEAY, F.L.S. 387 



bones. Preeoperculum entire. Scales ratlier small. Six or seven 

 branchiostegals. Pseudobranchiae. 



Indian and Australian Seas. 



185. Erythrichthys nitidus, Richards. 



Gunth. Oat. Fishes I., p. 395. 



Emmeliclitliys nitidus, Eich., Voy. Erebus and Terror, p. 47, pi. 



29, fig. 7-8. 

 B. 7. D. 9. 3/1/9-10. A. 5/10. L. lat. 96. L. transv. 8/20. 



Uniform greyish-silvery. The angle of the pra^operculum 

 rounded. 



West Australia. 



Family II. SQUAMIPINNES. 



Perciform fishes, with the body generally very elevated, and 

 with the vertical fins covered with small scales. 



Genus Ch^todon, Cuv. 



Body much compressed and elevated. One dorsal fin without 

 any notch, spinous and soft portions equally developed, none of 

 the spines elongate. Muzzle short or of moderate length. No 

 teeth on the palate ; prseoperculum entire or slightly serrated, 

 without spine. Scales large or of moderate size. Six branchi- 

 ostegals. Air-bladder with horns or two divisions. Intestinal 

 tractus with many convolutions ; pyloric appendages in moderate 

 number. 



All tropical Seas. 



186. Oh^todon strigatus, Ouv. & Val. 



Gunth. Oat. Fishes 11. , p. 34. 



D. 11/17. A. 3/14. L. lat. 60. L. transv. 10/21. 

 Snout scarcely produced, equal to or rather shorter than the 

 diameter of the eye ; prseoperculum very distinctly denticulated ; 



