-^ 438 — 



Semlplijrlljdiaiia Lamck. contin. 



syst, II. p. 49. — familia Pleurobranchiatorum. 

 Genera : Pleurobranchus , Umbrella. 

 Pariter Catlow 1845. Concli. Nom. p. 114. 

 SiSMONDA 1842. Syn. an. invert. p. 24. — Semi- 

 phyllidia. 

 = Pleurobranchia Desh. 

 Semipliyllidiclae Broderip 1839. Penny Cycl. XIV. * teste 

 Agass. Noin. 

 Etym. praec. 

 ?= Semiphyllidiana Lamck. 

 Senectina Aqass. 1847. Nom. zool. Ind. un. vid. seq. 

 ISeuectinae Swains. 1840. Mal. p. 214. 348. 



Etym. Senectus. (Senectina corr. Ag.) 

 Subfamilia Trochidarum. Genera: Senectus, Mar- 

 marostoma, Delphinula, Cyclocantha, Cidaris. 

 Senectus Humpiir. 1797. Mus. Calonn. * cf. Sow. jun. Conch. 

 Man. ed. 2a p. 255. 

 Etym. Nom. appell. 

 A Turbinibus disgregatum genus. 

 SwAiNS. 1840. Mal. p. 214. 348. — genus Senecti- 

 narum. Typus: Turbo chrysostomus L. 

 = Batillus Schum. 

 Senilia Gray 1840. Syn. Brit. Mus. * Ed. 1842. p. 92. 

 Etym, Seniiis. 

 Genus Arcadarum. 

 ,.S»ep|a {orinid) Aristot. Hist. anim. lib. IV. cap. 1. * De 

 part. anim. lib. IV. cap. 8. * 

 Genus [xaXaxuov, i. e. Mollium. 



Pariter Plinius Hist. nat. lib. IX. cap. 44. seqq. 

 BoNDEL. 1554. De pisc. I. p. 498. 

 Aldrov. 1606. De MoII. 

 JoNSTON 1650. De Exang. lib. I. cap. 2. — genus 



MoIIuscorum. 

 Blasius 1681. Anat. anim. p. 468. * 

 SwAMMERD. 1737. Byb. d. nat. II. p. 876. * (ed. Germ. 

 p. 346. *) 



