42 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 95 



The specimen described and figured. U.S.N.M. no. 426221, has 6.4 

 whorls remaining, and measures: Height 8.1 mm; diameter 3.3 mm. 

 This and 26 additional specimens were collected by Dr. Mary N. 

 Andrews at Cha Hsien, Chekiang Province, China. Ten of these 

 yield the following measurements : 



eroded 



Apex enl 



U.S.N.M. no. 428584 contains 19 specimens received from Dr. 

 Y. T. Yao, of the Central Field Health Station, National Governinent 

 of the Republic of China, collected at Cha-Hsien, Chekiang Province. 



Another lot, U.S.N.M. no. 428575, 10 specimens from the same 

 source collected at Pucheng, Nanking, Kiangsu Province. 



This species is distinguished from the other that has the marginal 

 teeth radula formula of 9:5 by its much greater number of axial 

 ribs and finer incremental lines. 



ONCOMELANIA LONGISCATA (Heude) 



Plate I, fig. 20; plate 2, fig. 19; plate 5, fig. 2 



1890. Heniibia longiscaia Heude, Mem. Concern. Hist. Nat. Emp. Chinois, 



p. 169, pi. 33. fig- 20. 

 1924. Oncomelania langiscata Annandale, Amer. Journ. Hyg., Mon. Ser. no. 3, 



p. 287. 

 1926. Oncomelania (Hemibia) longiscata Germain and Neveu-Lemaire, Ann. 



Parasit., vol. 4, p. 294. 



Shell rather broadly elongate-conic, stout, horn-colored, with the 

 postnuclear whorls strongly rounded and marked with very heavy 



I 



