— 343 — 



Cydoliraiieliiata Blainv. contin. 



Blalw. 1824. Dirt d. sc. nat. tom. 32. p. 279. et 



lb25. Malac. p. 488. — tertius ordo Paracepha- 



lopliororum monoicorum symmetricorum. Genera 



eadem. 



Meake 1830. Syn. ed. 2a p. 10. — primus subordo 



Gymnobranchiorum. Unica familia : Doridea. 

 Synoji. Anthobrancliia Goldf. Feruss. 

 Pygol)ninchia Gray. 

 Urobranchia Latr. 

 Anthobranchiata Menke olim. 

 Dorides Rang. 

 Doridae Johnston. 

 eyelobraneliiata StinvEKiG. 1820. Natgsch. p. 719. 



Prima sectio Gasteropodum. Genera: Chitonellus, 



Chiton, Patella. 

 Reeve 1 41. Proc. zool. Soc. p. 7.5. et 1842. Conch. 

 syst. II. p. 7. Gcnera eadem. 

 Pariter Catlow 1845. Conch. Nomencl. p. 91. 

 Menke olim 1828. Syn. p. -53. — nonus ordo Gaste- 

 ropodum. Suhordincs: Chismobranchiata, Poly- 

 plaxiphorae. 

 D'Orbig^y 1841. Moll. cub. I. p. 93. — 7us ordo 

 Gasteropodum. 

 = C y c 1 b r a n c h i a Cuvier. 

 Cyeloeantlta Swainson 1840. Malac. p. 215. 348. 



Etym. xcx^.og, circulus; uxayd-a, spina. Rectius 



C y c I a c a n t h a. 

 Genus Senectinarum. 

 = Calcar ^Montf. 

 CycSoeeras MTov 1844. Carb. foss. Irel. * teste Agass. 

 Nom. 

 Etym. y.vy.Xog , circulus. 



Genus Nautileorum. (Agass.) 



€'yeloeliiilnJS teste Agass. Nomencl. 



Etym. xvy.log, circulus; yitilog, labium. 

 Genus Limnaeanorum. 



