02 HELICEA. 



Gould quotes Sienotrema convexa as a synonym of hir- 

 suta (Invert. 1. c.) 



HELIX HIRSUTA Say vol. ii. p. 150, pi. xlii. fig. 3. 



Hdix hirsuta Say (Binney's ed.) p. 8. 



De Kay, N. Y. Moll. p. 36, pi. iii. fig. 27. 



Deshayes, in Lam. ed. 3, vol. 3, p. 308; in Fer. i. p. 140. 



Mrs. Gkay, Fig. of Moll. An. pi. 193, fig. 8, ex Bost. Journ. 



Chemnitz, ed. 2, Excl. van, i. 374 (1846), pi. Ixv. fig. 9-11, (1849). 



Pfeiffek, Hon. Hel. Viv. Excl. var. /3, i. 421; iii. 126. 



Reeve, Con. Icon. No. 714, (1852). 

 Ilelix sinuata y Gmelin (teste Pfeiff"er). 

 Helix isognomostomos y Gmelin (teste Pfeiffer). 

 Tridopsis hhsuta Woodward, Man. pi. xii. fig. 7, absq. desc. 

 Slenostoma convexa Rafinesque, Enum. and Ace. p. 3, 1831, nee. Ferussac. 



Junior ? 

 lldix porc'ma Say (Binney's ed.) p. 30, pi. Ixxiv. fig. 2. 



DeKay, N. Y. Moll. p. 45. 



Pfeiffer, Mon. Hel. Viv. iii. 97. 



Bland, N. Y. Lyceum, vi. p. 344, Notes, i. 34, with fig. 



In the remarks on the preceding species will be found 

 some notes referring equally to this. 



The species is found fossil in the Postpleiocene, and 

 recent in the localities already mentioned, as well as in 

 Kansas (Hayden), Virginia, at the height of 2000 above 

 the sea (Edwards), and the District of Columbia (Stimp- 

 son). 



The generic description of Stenostoma or Stenotrema is 

 given in vol. i. p. 49. The only specific description is the 

 following : " Nearly round, both sides convex, smooth, 

 5 spires, Kentucky." It appears to me to apply more to 

 this species than to monodon. 



As regards H. porcina, Say's description is copied by 

 the authors referred to, neither having seen authentic 

 specimens. Bland refers it rather to injlecta than hirsuta^ 

 if a young shell, but anticipates its proving mature. 

 From the figure of Say, I do not doubt the correctness of 

 my father's view of this question. Other cases occur 

 among Say's writings of still graver errors than describ- 



