NO. 5 INTERMEDIATE HOSTS OF ASIATIC BLOOD FLUKE BARTSCH 25 



1025. Blanjordia formosana Bartscii, Journ. Washington Acad. Sci., vol. 15, 



p. 71. 

 1926. Oncomelania (Hypsobia) formosana Germain and Neveu-Lemaire, Ann. 



Par as it., vol. 4, p. 294. 



1928. Blanjordia, fonnosaita Bequaert, Amer. Journ. Trop. Med., vol. 8, p. 225. 



1929. Katayama formosana Faust, Human Helminthology, p. 136. 



1932. Blanjordia jormosana Tubangui, Philippine Journ. Sci., vol. 49, p. 299, 



pi. 2, fig. 4. 

 1934. Blanjordia jormosana Bequaert, Journ. Parasit., vol. 20, p. 281. 



Shell elongate-ovate, thin, semitranslucent, horn-colored, hordered 

 by a chocolate-brown line. Interior of the aperture of the same color 

 as the exterior. Nuclear whorls 2.0. well rounded, smooth, except 

 for exceedingly fine microscopic granules, forming a rather blunt 

 apex, Postnuclear whorls somewhat inflated, strongly rounded, and 

 marked by slightly retractively curved incremental lines, which here 

 and there assume the strength of obsolete threads. There are also 

 obsolete spiral lirations present. Suture strongly impressed ; periphery 

 inflated, strongly rounded. Base rather short, strongly rounded, 

 narrowly umbilicated and marked like the spire. The last whorl has 

 a heavy callus behind the outer lip which extends to the columella. 

 Aperture broadly ovate ; outer lip thin, slightly reflected and adnate 

 at the parietal wall to the preceding turn. Operculum thin, paucispiral, 

 horny, consisting of 3.2 whorls with the nucleus excentric. The 



radula possesses the typical katayamid formula, that is • , for 



the rachidian tooth. The lateral has likewise the typical rachidian 

 formula of 6 denticles, with the third counting from the inside, much 

 larger than the rest. The first marginal has 9 denticles and the outer 

 marginal has 5 denticles with the innermost much larger than the rest. 



The specimen described and figured, U.S.N.M. no. 307270, is one 

 of several hundred specimens from Rono, Formosa. It has y.2 whorls, 

 and measures: Height, 6:5 mm; diameter, 3.4 nnn. 



A hundred additional specimens, U.S.N.M. no. 420941, yield the 

 measurements given in the subjoined table. 



