— 493 — 



CiyuMiobraiicl&ia Schweigg. contin. 



Menke 1830. Syn. cd. 2a p. 10. — subordines: Cy- 



clohranchia et Polybranchia. 

 JoHNSTON 1838 inJarrline Ann. Nat. Mist. I. p. 44. * 



— familiae : Doridae ct Tritoniadae. 

 Gray 1840 in Turton Man. ed. 2a p. 77. — 4tus 



ordo Gasteropodum. 

 Gravenh. 1845. Das Thierreich nach d. Verwandtsch. 

 p. 33. — nova familiae inseruntur genera: Aeo- 

 lidina, A])tychus?, et Calliopaea. 

 = Nudibranchiata Cuv. 

 Crymiioltranoliiata Schweigg. vid. G ymnobranchia. 

 Cp^iiinocoeliSitles Latr. 1825. Fam. nat. (ed. Berth. p. 181.) 

 Etym. yvfiroi;, nudus; xo/A/g, cochlea. 

 Prima sectio Pcctinibranchiatorum. Familia : Peri- 

 stomida, Turbinata, Trochoida, Neritacea, Mela- 

 nidae, Plicacea, Fusiformia, Alata, Varicosa, Cas- 

 siditae, Doliaria, Buccinidae, Subulata, Columel- 

 laria , Conoidea , Olivaria , Ovata. 

 Ciyniiioi»las. Gray 1821 in Lond. Medic. Repos. vol. 21.* 

 Efym. yvjiivog, nudus; nla^, lamina. 

 Primum genus Polyplacophororum. 

 = Chiton Linn. 

 Gyuinosonia (male Gymnosomata) Blainv. 1824. Dicf. 

 sc. nat. toni. 32. p. 273. et 1825. Malac. p. 482. 

 Cf. Desh. Enc. meth. IIL p. 175. 

 Etym. yv/iiv6g, nudus; ato^ta, corpus. 

 Secunda familia Aporobranchiorum. Genera: Clio, 

 Pneumoderma. 

 = Pterol)ranchia Gray. 

 Ciyniuoisoniata Blainv. vid. Gymnosoma. 

 Ciyniiiostonia Menke vid. Coelopnoa gymnostoma. 

 Etym. yv(.iv6g, nudus; oioi^ia, os. *^) 



41) Gymnostoma Fall. (1820.) ) 



Gymnostoma Meig. (1824.) \ ^'''''^ Dipterorum. 



