DISTRIBUTION OF GENERA. 



89 



* Vailla.ntia (jordau), gon. nov.: typo Jluloosomti Camurum Forbea. This jiomis dili'ors li'om Ho- 

 leichthys in having the upper jaw protractilo, and tho anal spines very focblc. From Bolfosnma, with 

 which it agrop.i in these respects, it is distinguished by tiie iiieonipleto later.-il line. It is named for 

 Prof. Loon Vuillant, of Paris, who.so thoroughly excellent monogruph of the EtheoittomatiMw in i,U]l the 

 starting-point for all work on that difficult but most interesting group. 



