190 PLEURODISCIDAE. 



simple, the columellar margin dilated a little ; umbilicus wide, 

 perspective. Alt, 1. 5 mm., diam. maj. 2.5 mm., min. 2.25 mm. 

 (Eeude). 



China: Shanghai, under fallen bamboo leaves, abundant 

 (Heude) ; Soo-chow (Teng-Chien Yen). 



Helix orphana Heude, 1882, Mem. Hist. Nat. Emp. Chinois: 

 Notes Moll. terr. Vallee Fleuve Bleu, p. 21, pi. 13, f. 18. 



The animal is black. It is found in many bamboo thickets. 

 Collected in the orphanage of the mission at Shanghai. 



My figures are from a specimen received from Pere Heude. 

 The dentition has not been examined, but from the presence 

 of microscopic spiral striae I think that it is a species of 

 Punctum. The shell figured measures, height 1.65 mm., diam. 

 2.6 mm. ; 4 whorls. 



Punctum micra (Pils.). PI. 23, figs. 4, 4a, 4&. 



The spiral striation, not represented in the figures, is as 

 described for P. orphana. The specimen figured measures: 

 height 1.4 mm., diam. 2.1 mm. 



Korea: Bay of Ulsan (Kuroda). 



Pyramidula micra Pilsbry, Proc. A. N. S. Phila. 1926, p. 

 469, pi. 35, f. 1, la, 1&. 



