CLASS PISCES. 429 



maxillaries, but none on the palatines. Their first 

 dorsal is just above the ventrals \ 



Others again have but a simple range to the maxil- 

 laries and lower jaw ; these teeth are alternately very 

 small and very long, especially the second two below, 

 which pass through two holes of the upper jaw when 

 the mouth is closed. Their lateral line is furnished 

 with larger scales ; their first dorsal corresponds to 

 the interval of the ventrals and the anal 2 . 



A fourth sort has the muzzle very salient and 

 pointed, the maxillaries very short, furnished, as well 

 as the lower jaw and the intermaxillaries, with a single 

 range of small crowded teeth ; their first dorsal cor- 

 responds to the interval of the ventrals and the anal. 

 The whole body is furnished with stout scales 3 . 



Others, in fine, have absolutely no teeth whatever, 

 except on the intermaxillaries and lower jaw ; these 

 teeth are few in number, stout, and pointed. Their 

 first dorsal is above the ventrals. But a single one 

 is known : from the Nile 4 . 



1 A new species from Brazil. Hydroc. brevidens, Cuv., Mem. 

 Mus. V. pi. xxvii. f. 1 ; or Characinus Amazonicus, Spix, xxxv. 



2 Another Brazilian species, Hydroc. scomberotdes, Cuv., Mem. 

 Mus. V. pi. xxvii. f. 2 ; or Cynodon vulpinus, Spix, xxvi. Cynodon 

 gibbus, Id. xxvii. 



3 Another species from Brazil, Hydroc. Indus, Cuv., Mem. Mus. 

 V. pi. xxvi. f . 3 ; or Xiphostoma Cuvieri, Spix xlii. 



4 The Roschal, or Water-dog, Forsk. ; or Char -acinus Dentex, Geoffr. 

 Poiss. d'Eg. pi. iv. f. 1 ; and Cuv. Mem. Mus. V. pi. xxviii. f. 1 ; 

 hut which is not, as Forskal thought, the Salmo dentex of Hassel- 

 quist : this latter is the Rail. 



