NO. 17 LAMARCK S GENERA OF SHELLS KENNARD ET AL. 



Genus Type & Synonym 



Children's selection stands for Capsa, Lamk, 

 i8i8 = Iphtgenia, Schumacher, 18 17. 

 Crassina 



C. Danmoniensis {Venus Dannio- 

 niensis. Montagu.) 

 §Genotype. 



[Genus preceded by Astarte, Sowb., 1816.] 

 310 37 Cyclas C. R'wicola {Cyclas corncall]. 



Draparn.) 

 §C rivicola, Leach, here first described, was not 

 a member of the genus when founded and 

 cannot stand as type. 



Genus founded 1798 by Lamarck on plate 

 and figures in Ency. meth., was defined by him 

 in 1799 (Prod. 84) with genotype C. cornea, 

 Lin. 

 [Genus preceded by Sph(crium, Scopoli, 



^777-] 



310 37 Cyrena 



311 38 [3] C"- <^or. §stet. 



311 38 Galathea G. rorf/a/a (A variety of this genus 



is the Venus subviridis of 

 Gmelin.) 

 §Genus founded by Bruguiere 1797 as Galatea 

 [correct form of name]. Adopted by La- 

 marck 1805 as Galathea monotype G. radiata. 

 [Preoccupied by Fabricius, 1793 (Crust.), so 

 that Egcria, Roissy, 1805, must be accepted.] 



311 38 Cyprina 



312 39 [2] C. Islandica {Venus Islandica. 



Linn.) 

 § [Genus proposed in 181 2 in vernacular dates 

 from here. It is preceded by Arctica, 181 7, 

 which in turn is preoccupied for Aves by 

 Moehring, 1758. Armida of Gistel 1848, is a 

 synonym.] 

 312 39 Cytherea 



