BALISTID^. BALISTIN^. 327 



PsTLocEPHALUs Sw. Body linear, narrow, very long; 

 head and jaws excessively lengthened ; terminated by 

 a small vertical mouth; the chin prominent and 

 bearded ; pelvis prominent and forming a dew-lap ; 

 dorsal and anal single, of soft rays ; caudal fin very 

 long and oval; analogous to Syngnathus, Mor- 

 myrus, &c. 



P. barbatus. Gray, Ind. Zool. 



MoNOCANTHUs. Body short, broad, furnished with 

 prickles ; the first dorsal fin represented by a single 

 dentated spine ; pelvis either prominent and spined, 

 but destitute of rays, or altogether concealed ; belly 

 and throat capable of distention. 



Monocanthus Cuv. Body covered with a granulated, 



coriaceous skin ; the sides of the tail .armed with 



recurved spines ; pelvis protruding beyond the skin_, 



and generally armed with prickles. 



hippocrepis, Frey. Z. p. 212. Freycinettii. lb. 213. 

 geographicus. Reg. An.l2. 2. Chinensis. lb. 152. fig. 2. 

 tomentosus. Bloch, 148. 1. filamentosus. Vol. I. 195.29. 



Cantherines Sw. Body smooth or granulated ; pelvis 

 prominent ; no spines on the sides of the tail. 

 C. nasutus. * Frey. Zool. p. 214. 



CfKEtodermis Sw. Body entirely covered with sharp 

 prickles, intermixed with soft cilise or lobed ap- 

 pendages ; pelvis prominent, but no spines on the 

 sides of the tail. 



C. spinosissimus. Frey. Atl. pennicilligerus. Cuv. Reg. 

 pi. 45. fig. 3 — 8. An. pi. 12. fig. 3. 



Alntera Cuv. Body granulated, ovate, oblong ; pelvis 

 concealed beneath the skin ; sides of the tail without 

 spines. 



A. monoceros. Bloch, pi. 147. lEevis. Bloch, pi. 414. 

 punctata. Spix, pi. 76. virida, Frey. Atl. 472. 



{fig. 105.) 



* Mon. Sandwichiensis, Qiioy and Gaimard. 

 Y 4 



