116 PUPISOMA, ACANTHINULA. 



Mexico, Estado Puebla : Necaxa, 2625-3800 ft. ; mainly below 

 the falls, common on leaves of shrubs and trees (H. B. Baker). 



Pupisoma comicolense H. H. B., Proc. Acad. Nat. Sci. Phila- 

 delphia 79 : 224, pi. 15, f . 4-7, 1927, anatomy only ; Occ. Pap. 

 Mus. Zool. Univ. Mich. No. 220, Oct. 15, 1930, p. 3, pi. 7, f. 1, 

 2, shell. 



P. comicolense is about the size of P. dioscoricola (C. B. 

 Ad.), but with one more whorl, is relatively and actually 

 higher. Its sculpture is most like that in P. minus Pilsbry, 

 but P. comicolense is far larger and has a relatively much 

 smaller umbilicus and higher whorls with better impressed 

 suture. Although it occurs with P. mediamericanum, the 

 latter is most abundant in lower vegetation and at higher 

 altitudes {H.B.B.). 



Pupisoma bailyi, n. sp. PI. 24, fig. 15. 



The shell is umbilicate, globose-conic, the apex very obtuse, 

 cinnamon colored, of 3I/2 strongly convex whorls, the first 

 minutely and weakly pitted, the rest with some wrinkles of 

 growth, unevenly developed, and a very shallow and minute 

 pitting. Aperture rotund-tnincate, the peristome thin, colu- 

 mellar margin broadly reflected. Length 1.95 mm., diam. 

 1.8 mm. 



Mexico: Cuernavaca, State of Moreles; type 156099 A. N. 

 S. P., collected by Joshua L. Baily, 1931. 



This equals in size the largest P. dioscoricola, and is of a 

 more conic shape. It is larger, darker colored and more conic 

 than other Mexican species. 



Pupisoma orcula (Bens.). Vol. 26, p. 31. 



Reported from the island of Makatea by C. M. Cooke, Jr., 

 Occ. Pap. B. P. Bishop Mus. vol. 10, No. 11, pp. 4, 8. He con- 

 siders it one of several species introduced by man. 



ACANTHINULA (Vol. 27, p. 188). 

 Acanthinula aculeata (Miill.). Vol. 27, p. 191. 



The original reference ioY Helix nucleata (p. 192) is Turton, 



