24 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 82 



QJ.S. 



1823, July Reprint 



Page Page Genus Type & Synonym 



in 1 816. It is preceded by Septaria, Ferussac, 

 1807, and Cimber, Montfort, 1810.] 



247 III Ncritina [2] N. pulligera (Nerita pulligera. 



Linn.) 

 §Genus first proposed in the vernacular, " Neri- 

 tine," by Lamarck in 1809; this he Latinized 

 in 1816 (Ency. meth. Vers, " Liste des Ob- 

 jects"). Children's selection holds for La- 

 marck's genus. 



[The fresh-water forms usually included 

 under the genus had already been separated 

 by Montfort in 18 10 under his genera Clithon 

 (ii, 327) and Theodoxus (ii, 351). Neritina, 

 1816, is preceded by Laphrostoma, Rafi- 

 nesque, 181 5.] 



247 III Ncrita N. exuvia {Idem. Uinn.) 



§Same in Lk. Prod, yy and Syst. 95. 



[S. P. Woodward in his " Manual " gives as 

 type " nstulata," which is a misprint for un- 

 data, Lin.] 



247 1 1 1 Natka 



248 112 N. (jkincina {IdQnx.Uxnn.) 



§Lk. Prod, yy, Syst. 95. and Mtf. ii, 219, all cite 



A^. canrcna, Lin., so that this must stand as 



type for Lamarck. 



[Preoccupied by Natica, Scopoli, 1777, syn. 



Alhula, Bolten, 1798.] 

 248 112 laiithiiia I. cominuiiis {Helix laiitliiiia. 



Linn.) 

 §Commonly spelled with a " J." 



Lk. Prod. 75 cites Helix janthina, Lin. 



Lk. Syst. 89 and Mtf. ii, 215 changed the 



specific name to fragilis. 



The type name should read lanthina ianthina 



(Lin.) _ 



[Generic name first proposed by Bolten, 



1798.] 

 248 112 Sicjaretus 



