114 BOTHRIOPUPA, PUPISOMA. 



BOTHRIOPUPA (Vol. 24, p. 226; Vol. 27, p. 228). 

 BoTHRiopUPA PERUVIANA, new specics. PI. 16, fig. 6. 



The ovate-conic shell has a deep, comma-shaped axial 

 crevice. Color cinnamon to snuff brown. The rather glossy 

 surface is minutely, irregularly pitted throughout, with some 

 wrinkles along growth lines on the intermediate whorls. The 

 whorls are strongly convex, joined by a deep suture. The 

 peristome is white, expanded, slightly thickened within. 

 Parietal lamella strong. Upper and lower palatal folds small, 

 subequal, the latter slightly further in. Columellar lamella 

 median, receding. 



Length 1.7 mm., diam. 1.2 mm.; 4^/^ whorls. 



Peru: Quebrada Boca Pan, below Trigal, Dept. of Tumbez 

 (A. A. Olsson). Type and paratypes No. 152673 ANSP. 



The teeth are decidedly smaller than in B. tenuidens (C. B. 

 Ad.). It differs from T. breviconus Pils. by the more elevated 

 conic shape and the longer aperture. Three specimens were 

 collected. 



PUPISOMA (Vol. 26, p. 19). 



PupisoMA DioscoRicoLA (C.B.Ad.). Vol. 26, p. 36. 



This widely spread species has been reported from Serra da 

 Baturite, State of Ceara, Brazil (Fred Baker, Proc. A.N.S. 

 Phila. 1913, p. 632). I found it with the following species at 

 the upper limit of the wooded zone of Chatham Island, Gal- 

 apagos (Pinchot Exped.). It is one of the most widely spread 

 snails of tropical America. 



PUPISOMA GALAPAGORUM, nCW SpCcicS. PI. 16, figS. 7, 8, 9. 



The shell is globosely conic, or turbinate, the diameter about 

 87 per cent of the height, with obtuse apex; umbilieate, the 

 umbilicus contained about five times in the diameter; cinna- 

 mon-brown. Sculpture of fine, close wrinkles, irregularly 

 developed, being weak or nearly effaced in places, and absent 

 on the embryonic li/^ whorls; also a weak and very minute 

 pitting, which is also quite irregularly developed, and in some 

 places replaced by granulation. There is no spiral striation. 



