— 268 — 



Pileiforiuia Latr. contin. 



2) diaphragmate nullo: Hipponyx, Capulus, Emar- 

 ginula, Fissurella, Pannophorus. 

 = Calyptracea L;iinck. 

 Pileolus CooKsON teste G. B. Sow. 1823. Gen. Sh. fasc. 

 19.* Conf. Defrance 1826. Dict. sc. uat. tom. 40. 

 p. 460. 

 Etym. Nom. appell. 



Novum genus Gasteropodum fossilium. 

 Adoptat J. Sow. 1823. Min. Conch. tab. 432. 

 I)esii. 1824. Ann. d. sc. nat. 1. p. 187. * (Isis 1830. 

 p. 376.) et 1832. Enc. meth. III. p. 764. — genus 

 Neritaceorum. 



Pariter Bronn 1837. Leth, p. 391. et 1838. ibid. 

 p. 1029. 

 Sow. jun. 1842. Conch. Man. ed. 2a p. 226. 

 Blainv. 1825. Malac. p. 445. — subgenus Neritae. 

 Flem. 1828. Brit. An. p. 361. 363. — genus Crepi- 



dulidarum. 

 Rang 1829. Man. p. 195. — sectio Neritinae. 

 Menke 1830. Syn. ed. 2a p. 47. — in Trochoideis. 

 CuviER 1830. R. a. ed. 2a. (.ed. Voigt. 111. p. 220.) 



— in Pectinibranchiatis capuloideis. 

 SwAiNS. 1840. Malac. p. 347. — subgenus Neritinae. 

 D'Orh. 1841. Moll. Cub. l. p. 199. et 1843. Pal. 

 franc. * — genus Neritidarum. 

 Pariter Gray 1842. Syn. Brit. Mus. p. 89. 

 Geinitz 1845. Grundr. d. Verst. p. 345. 

 MoRRis 1843. Brit. foss. p. 156. 

 Synon. Crepidula (sp.) Defr. 

 Tomostoma Desh. olim. 

 Neritina (sp.) Blainv. 

 Pileopsis (Cabochon) Lamck. 1812. Extr. d'un Cours. * et 

 1822. Hist, VI. 2. p. 16. (ed. 2a VIL p.604.) Conf. 

 Blainv. 1826. Dict. sc. nat. tom. 40. p. 461. 

 Etym. mXeoSi pileus; oipis^ facies. 

 Genus Calyptraceorum. 



