— 264 — 



Phyllodesmiimi Ehrenb. conlin. 

 Genus Gymnobranchiorum. 



Gray 1842. Syn. Brit. Mus. p. 90. — genus Trito- 

 niadarum. 

 Pliyllonotiis SwAiNS. 1840. Mal. p. 296. Conf. Sow. jun. 

 Conch. Man. ed. 2a p. 225. 

 Etym. q)vlkov, folium; vojTog, tergum. 

 Subgenus Muricis. Typus: Murex saxatihs Linn. 

 Synon. Murex frondosus Klein. 

 Chicoreus Montf. q. cf. 

 Pltyllopoda Gray 1821. Lond. Med. Rep. * Cf. Desh. Enc. 

 meth. IIL p. 761. 

 Etym. cpvllov, folium; tiovq, pes. '®) 

 Quartus ordo Conchophororum. Genera: Solen, 

 Psammobia, Teliina, Cyclas, Venus, Cardium, 

 Tridacna, Chama, Pectunculus, Trigonia, Unio. 

 Gray 1842. Syn. Brit. Mus. p. 74. 9L — primus 

 ordo Conchiferorum. Familiae: Veneridae, Cy- 

 renidae , Cardiadae , Mactridae , Mesodesmidae, 

 Tellinidae. 

 Pliymeroda (Rafin. err. typ.) Agass. Nom. vid. seq. 

 Pliymesoda Rafin. 1820. Monogr. Biv. Oh. (ed. Chenu 

 p. 27.) 

 Etym. (pvco, gigno; /neoog, medius; odovg, dens. 



Vocab. deprav. 

 Subgenus Cycladis vel genus Cycladium. Typus : 

 Cyclas lacustris Miill. 

 Pltysa Drap. 1801. Prodr. * et 1805. Moll. p. 25. 28. 54. 

 Etym. cpvaa, follis, halitus. '*) 



Genus Gasteropodum. Typus: Bulla hypnorum Linn. 

 RoissY 1805. Moll. V. p. 343. 



Lamck. 1812. Extr. d'un Cours. * et 1822. Hist. VL 

 2. p. 155. (ed. 2a VIII. p. 398.) — genus Limnaea- 

 norum. 



18) Phyllopoda (Phillopoda) Latr. (1802.) familia Crustaceorum. 



19) Physa Thouars genus Portulacearum. 



