42 



8. R. tenuis, Hinds. 



H. and A. Adams, Genera, ii. 386, 1858. 



9. R. undulata, Gould, Proc. Bost. Soc. Nat. Hist. iv. 89, 



1851. 

 Bost. Jour. Nat. Hist. vi. pi. 15, f. 7, 1853. 



La Paz, Lower California. 



Genus LABIOSA, Schmidt. 



1. L. anatina, Spengler, Skrivt. Nat. Hist. Selsk. v. 120, 



1799. 

 Mactra anatina, Spengler. 



2. L. cyprina, Gray. Wood, Index Test. pi. 1, f. 1, 1818. 



Reeve, Conch. Icon. Monog. Mactra, f. 37, 1854. 



3. L. lineata, Say, Jour. Acad. Nat. Sci. ii. 310, 1821. 



Amer. Conch., Binney's ed., 102, 158, pi. 9. 

 Mactra Nuttallii, Reeve (not Lutraria Nuttallii, Conrad), 



Conch. Icon. Monog. Mactra, f. 125, 1854. 

 Mactra recurva, Wood, Index Test. Sup. f. 2. 



South Carolina. 



4. L. papyracea, Lam., An. sans Vert. (Desh. ed.) vi. 93, 



1835. 

 Sowerby's Genera, f. 2, 1847. 



5. L. ventricosa, Gould, Proc. Bost. Soc. Nat. Hist. iv. 89, 



1851. 

 Bost. Jour. Nat. Hist. vi. 390, 1853. Mazatlan. 



Genus VANGINELLA, Gray. 



1. V. Taylorii, Gray. 



Resania lanceolata, Gray, MSS. Reeve, Conch. Icon. Monog, 

 Lutraria, f. 17, 1854. JSfew Zealand. 



Genus ZENATIA, Gray. 



1. Z. acinaces. Quoy. 



Reeve, Conch. Icon. Monog. Lutraria, f. 14, 1854. 



Neiv Zealand. 



2. Z. Cumingiana, Deshayes, Zool. Proc. 14, 1854. 



Reeve, Conch. Icon. Monog. Lutraria, f. 13, 1854. 



New Zealand. 



3. Z. Solenoides, Deshayes, Zool. Proc. 72, 1854. 

 Lutraria Deshai/esii, Reeve, Conch. Icon. Monog. Lutraria, f. 



1, 1854. Neto Zealand. 



