178 Binney on Terrestrial Mollusks. 



Remarks. The above is Kiister's description. The 

 figure to which I refer is a fac-siinile of one of his. This 

 is the only information I have been able to obtain with 

 regard to the species. It has not been described by any 

 other author but Pfeiffer, who merely quotes the above 

 dcj^cription, not having ever seen the shell. 



Kiister's figure represents no known American shell ; 

 there exists, however, a strong resemblance between it 

 and his figure of Alexia myosolis. His original specimen 

 may have been a variety of that species. 



Pfeifter compares the species with Melampus infrequetis 

 Ad. 



Genus CARYCHIUM MiJller. 



Sliell pupa-shaped, verv thin, transparent, with but few whorls ; aper- 

 ture suboval ; with one (U'ntifoim columellar fold, sometimes obsolete; 

 parietal wall with 1 or 2 teeth ; j)eristome expanded, terminations not 

 approximating', the right hand one with one internal tooth. (Ptr.) 



See the remarks under the following species. 



CAKVCim 31 EXIGUILII Say. 

 I'late LIII. Fua i;e 1. 

 C. testa mlnutlssima, alba, f'usiformi, sul)-acuminata ; anfractibus quin- 

 que vel sex, obliquis, convexis; apertura, obli([ua ; columella dente albo 

 ornata, ; labro albo, rellexo. 



SYXOXYMS AND HEFERENCES. 



Ptipa exiijmt Say, Jonni. Aciid. ii. 375; ed. Binn. p. 26. 



CiouLi>, Boston Journ. iii. 398, pi. 3. f. 20. IiivcrtebiTita, 191, 



f. 120. 

 DeKay, New York Report, 31 ; F:uina, 4'.t, pi. iv. fig. 46. 

 Adams, Vennont ilollust-a, 8. 

 BnUmus txiguus Binxey, ii. 286. 

 Oiri/chium txii/uum Goved, in Terr. JIcll. ii. 2S0. 



Chemnitz, ed. 2, p. 61, pi. i. figs. 13, 14. 

 Sri.Mi'sox, Shells of N. E. p. 52, (ubsq. dese.) 

 FitAiENf-EED, 1847, Ak.-iti. der Wiss. xix. p. 79; Zoid. Cot. 



Wicii, iv. p. 10, pi. 1, fig. 1. 

 BouitGUiNAT, Mag. Zoijl. 1857, p. 209. 

 Oirijclduin tJ-Ak II. C. Lea, Am. .louni. 42, 109, pi. i. fig. 5. 



Tkosciiei., Ar. f. Nat. 1843; ii. 128. 

 Gtrychium existclium I5ouI{GIGNAT, 1. c. p. 220. 

 Carychium eupha'Uin BoUKGitiXAT, 1. c. p. 221. 



