114 FISHES. 



Dascyllus, Cuv. 



The fishes of this genus only differ from those of the preceding one in 

 their teeth, which are very short and dense as the pile on velvet*. They 

 all inhabit the Indian Ocean. 



Glyph isodon, Lacep. 



Have the operculum and preoperculum entire ; a single range of trench- 

 ant and generally emarginated teeth. 



They are found in the Atlantic -\, but the Indian Ocean produces 

 many more \. 



Some of them are distinguished from the others by numerous 

 spines in the anal§. 



Heliasus. 



Have the opercular pieces of the Glyphisodon and teeth similiar to those 

 of a Dascyllus, that is, small and dense as the pile on velvet. They are 

 found in both oceans ||. 



FAMILY IV. 



SPAROIDES. 



The Sparoides, like the Scienoides, have a palate destitute of teeth* 

 Their general figure and several details of their organization are the same ; 

 they are also covered with scales more or less large, but they have none 

 on the fins. Their muzzle is not gibbous, nor the bones of their head 

 cavernous ; there are neither indentations in their preoperculum, nor spines 

 on their operculum; their pylorus is furnished with csecal appendages. 

 They never have more than six rays in the branchiae. They are divided 

 according to the form of their teeth. 



The first tribe, that of Sparus, properly so called, Cuv., have the sides 

 of the jaws furnished with round molars in the form of pavement; we 

 subdivide it into five genera. 



* Chatodon aruanus, L., Mus. Ad. Fred. XXXII, Bl., pi. 198, f. 2. 



f The Jacaraqua, Marcgr., or Cheelod. saxatilis, L., Mus. Ad. Fred., XXVII, 3, 

 which is also the Chat, marginatus, BL, 237; and his Ch.mauritii, 213, 1; and the 

 Ch. sargoide, Lac.; hut it is not the Ch. saxatilis, Bl., 20C, 2;— Ch. curassao, BL, 212. 



\ Chatod. bengalensis, BL 213, 2, or Labre macrogastere, Lacep., Ill, xix, 3; — Gl. 

 melanurus, Cuv., or Labre 6-bandes, Lacep., Ill, xix, 2;—Chcet. sordidus, Forsk., or 

 Calamoia po/a, RusseL, 85;— Gl. sparoides, Cuv., Lacep., IV, ii, \;—Gl. lachrymal us, 

 Cuv., Quoy et Gaym., Freycin., pi. 62, f. 7;— Gl. azureus, lb., pi. 64, f. 3;— Gl. uni- 

 oeellalus, lb., f. 4. 



§ Cluetod. suratensis, Bl. 217 ;— Cheelod. mamlatus, BL, 427. 



[| The species are new; we describe them in our 5th vol. of Icthyology. 



