— 240 — 



Petasia Beck 1837. Ind. p. 21. 



Etym. nhaGoSf uinbella. ") 



Subgenus Helicis, e sectione planilabrium. Typus: 



Hebx fulva Miill. 

 Synon. Trochus (sp.) Chemn. Da Costa. 



Helicella (sp.) Feruss. 



Hebcoflonta (sp.) Feruss. 



Conulus Fitz. 



Trochiscus Held. 

 Petasiinciiiu!^ Petiv. 171.3. Amboin. tab. 17. * 



Etym. Nom. appell. (Petasunculus Rumphio species 



Telbnae.) 

 = Tellina sp. 

 PetraVa MfNSTER 1839. Beitr. z. Petref. I. (ed. 2a. p. 63.) 

 Etym. IIsTQaia, filia Oceani. (Petraea bene corr. 



Agass. '") 

 Genus dubium, quod auctor Capulo affine habet, 



Lonsdale autem (1840 in Trans. geol. Soc. V. 3. 



p. 721. * >► Leonh. Palaeoz. p. 238.) in viciniis 



Cyathophylli recenset, assentienle F. .Sandberger 



1846 in L. et Br. Jahrb. p. 476. Agass. Nomencl. 



zool. in Polyporum famiba Funginorum collocat. 

 PetrieoEa Lamck. 1801. Syst. an. p. 121. 

 Etym. Petra; colo. 

 Genus Acephalaeorum aequivalvium, quod praenun- 



tiaverat Spengler 1783 in Schrift. d. Berl. Ges. 



naturf. Fr. IV. p. 325. Typus: Venus lithophaga 



Retz. 

 RoissY 1805. Moll. VI. p. 439. 

 Lamck. 1809. Phil. zool. — in Solenaceis. 

 Lamck. 1812. Extr. d'un Cours. * > et 1818. Hist. 



V. p. 502. (ed. 2a VL p. 155.) — in Lithophagis. 



9) Petasia Morren (1829.) genus Polygastricorum. 

 Petasia Stephens (1829.) genus Lepidopterorum. 

 Petasia Audin.-Serv. (1831.) genos Orthopterorum. 



10) Petraea Houst. genus Verbenacearum. 



