100 SCIiENOIDS. 



like the Boges, but they have also a band of villous denticles behind 

 the flattened teeth. 



A fish of the Red -sea, the Sparus crenidens of Forskal, has two 

 rows of compressed teeth in each jaw ; the external ones being larger 

 than those of the second row. These teeth are compressed, broad, 

 and their cutting edge is subdivided into five denticles, which give it 

 a festooned contour. Behind their crenate teeth, there are some small 

 granular denticles. The pharyngeal teeth in this genus form a fine 

 rasp. A figure of this singular dentition, after Cuvier, is given in 

 PI. 1, fig. 7. It concludes the series of modifications of the dental 

 system which have hitherto been discovered in the fishes of the 

 Bream tribe. 



SCLENOIDS. 



40. In all this family of fishes, as in the Sparoids, the vomer and 

 palatine bones are edentulous. In the Maigres or true Sciance, there 

 is a single row of wide-set, moderately large, conical, pointed and 

 sUghtly recurved teeth, with several smaller ones in the interspaces, 

 in both jaws. 



In the CorvirKs, the larger conical teeth are restricted to the upper 

 jaw; the villiform teeth are present in both jaws ; on the pharyngeal 

 bones the teeth present the form of obtuse cones in the centre of the 

 dental group, and are villiform at the circumference. The maxillary 

 teeth of the Leiostomes are so minute, as to have escaped the notice 

 of some naturalists, and the name of the genus(l) was conceived 

 under this misapprehension ; extremely fine villiform teeth are, how- 

 ever, present, and form a narrow band on each intermaxillary and 

 premandibular bone ; the teeth on the posterior part of the pharyngeal 

 bones are obtuse and form a fine pavement. 



In the genera Eques, Larimus, Lepipterus, Dascyllus and Heliasis, 

 the maxillary teeth are minute and villiform. But in the Boridics, 

 each jaw is armed with three or four rows of thick, short, blunt teeth, 

 of which the six or eight anterior ones are conical and larger than the 

 rest. (2) 



(1) \hoq, smooth; tojuw, mouth. (2) PI. 1, fig. 14. 



