116 STROPHOCHEILUS. 



High forests of the Magdalena river region, 6000 ft. above the sea 

 (Wallis); Brazil (Mus. Dennison). 



Anostoma carinatum PFR., Zeitschr. f. Malak., 1853, p. 57 ; 

 Monogr. iii, p. 650 REEVE, Conch. Icon., xiv, pi. 1, f. 1 #, b 

 (1863) MOUSSON, Malak. Blatt. xvi, p. 172. 



This is probably a mere variety of A. ringens L., characterized by 

 its strong keel, strong sculpture and large foramen in the lip ; but 

 these characters vary widely among specimens of A. ringens. Reeve's 

 indifferent figures are copied on my plate. 



4 



APPENDIX TO BULIMOID SNAILS. 

 Genus STROPHOCHEILUS Spix. (Vol. X, p. 1). 



Subgenus STROPHOCHEILUS. 

 S. PUDICUS (Miiller). PI. 17, figs. 39, 40. 



Pfeiffer identified H. pudica Mull, with the species I have named 

 erythrosoma, and reversing the usage of former authors, he calls the 

 shell long known as B. pudicus, B. almeida. As the reasons for a 

 different course are not given in vol. x, it may be best to re-open the 

 question here. I give on platb 17 copies of Chemnitz's figures of 

 Miiller's type. Miiller's diagnosis and description are as follows : 



"Helix pudica. Helix testa oblonga, rugulosa, rosacea, apertura 

 edentula ; labro dilatato, candido. Long 20 lin. lat. 9 Jin. 



" Testa ovato-acuminata, nitida ex candido & roseo mixta, rugulis 

 minutissimis ubique vestita. Anfractus vix sex, extimus quinis vicino 

 & reliquis simul'sumtis major. Faux alba; apertura ovato-oblonga ; 

 labrum adnatum roseo flavescens. Centrum axis sub labro perfor- 

 atum. In Museum Spengleriano." 



The italics are my own, and call attention to characters the white 

 lip and nearly 6 whorls which show the original H. pudica to be 

 different from S. erythrosoma. In erythrosoma the largest specimens 

 have only 4|, while smaller shells, the size indicated by Miiller, have 

 but 4^, and the contour of the shell is wider. Chemnitz's figure of 

 Miiller's type, from Spengler's collection, shows 5 whorls, and his 

 description gives " only six." The upper whorl being planorboid in 

 Strophocheilus , does not show in a front view. It will be noticed that 



