574 ORDER PLECTOGNATHI. 



crescences, and extremely crowded. The extremity 

 of their pelvis is projecting and spiny, as in balistes 

 proper, but they have only one large dentated spine 

 to their first dorsal, or at least the second is almost 

 imperceptible. 



In some the bone of the pelvis is very mobile and 

 attached to the abdomen by a sort of extensible 

 dewlap ; there are often strong spines to the sides 

 of their tail \ 



Others are distinguished because the sides of their 

 tail are bristled with rough setae 2 . 



Others because their body is altogether covered 

 with small pedicled tubercles 3 . 



Others, again, because it is furnished with cilia?, 

 slender, and often branched 4 . 



Others, in fine, want these divers characters 5 . 



1 Batistes chinensis, Bl. 152. 1. Bal. tomentosus, Id. 148. which 

 is not that of Linnaeus, but the Pira aca, Marcg. 154. Bal. Japonicus, 

 Tiles. Mem. de la Soc. de Moscow, tome ii. pi. xiii. Bal. pelleon, 

 Quoy and Gaym. Zool. de Frecyc. pi. xlv. f. 3. Bal. geographicus, 

 Per., Cuv., Regne Animal, pi. ix. f. 2. 



2 Bal. tomentosus, L., Seb. III. xxiv. f. 18. Gronov. Mus. vi. 

 f. 5. B. a brosses, Bal. scopas, Commers. Lacep. I. xviii. 3. con- 

 forms to the description which Linnaeus gives of the Hispidus,but not 

 to the character figure of Seba which he cites. 



2 Balistes papillosus, Schn., White, p. 254. 



4 Bal. penicilligerus, Peron., Cuv., Regne Animal, pi. ix. f. 3. 

 Bal. villosus, Ehrenb. 



5 Bal. hispidus, L., Seb. III. xxxiv. 2. Bal. longirostris, Schn. 

 Seb. III. xxiv. 19. Bal. Papillosus, L ?, Lacep. I. xvii. 3. under 

 the name of monoceros, Clus. Exot. lib. VI. cap. xxviii. Bal. vil- 

 losus, C. Bal. guttatus, C. 



13 



