OF OONCHOLOGY. 825 



Fi"- 17 A DuPETiTHOUARSii, Deshayes. Revue ZooL, 



p. 360, (1839.) No. 15 



Binnev, 1. c. iii., p. 13, (1857.) 

 W.G.Binney, 1. c, p. 15, t. 76, fig. 9, (1859.) 

 H. Oregonensis, Lea. Trans. Amer. Philos. 

 Soc, vi., p. 100, (1839.) 



{See also pi. Q, Jigs. 18, 19,20.) 



ARIONTA. 



" 18. A. Remondi, Tryon. Proc. Acad. Nat. Sci- 

 ences, Philadelphia, p. 281, t. 2, fig. 1, 

 (1863.) No. 5. 



" 19. A. Veitchii, Newcomb, MS. No. 1, 



" 20 A Californiensis, Lea. Trans. Amer. Philos. 



Soc, vi., p. 99, t. 23, fig. 79, (1839.) No. 2. 



Binney, 1. c. ii., p. 121, t. 6, fig. 2, (1851.) 

 ff. vinda, Valenciennes, Voy. Yenus Moll., t. 

 1, fig. 2. 



{Set also pi. 6, figs. 1 ei seq.) 



POLYMITA. 



" 21. P. LEVIS, Pfeiffer. (See pi. 6, fig. 6.) 



HELICID^. 



Synonymy and Reference to 

 Plate 6. 



ARIONTA. 



{Plate 5, figg. IS et seq.) 

 1. A Kelleti, Forbes. Proc. Zool. Soc, Lon- 

 don, p. 55, t. 9, fig. 2, a. 6, (1850.) No. 3. 

 W.G.Binney, I.e., p.l7, t.76,fig.l2, (1859.) 

 2 A. crebristriata, Newcomb. Proc. Califor- 

 nia Acad. Nat. Sciences, p. 116, (1861.) No. 4. 

 {See also Jig. 17.) 



