4 PROCEEDINGS OF THE K^ATIONAL MUSEUM vol. 78 



1S60. Helix duMosn Martens, Albers, Heliceen, ed. 2, p. 172. 

 1868. HeUx dtihiosa Pfeiffer, Mou. Helic. vivent., vol. 5, p. 283, in part. 

 1870. Cochlostijla duMosa Semper, Pliilippinen, pt. 2, vol. 3, p. 180, in part. 

 1870. Coclilostyla miraMlis Semper, Philippinen, pt. 2, vol. 3, p. 192. 

 1876. Cochlostyla duhiosa Pfeiffee, Mon. Helic. vivent., vol. 7, in part, p. 324. 

 1881. Coclilostyla duhiosa Pfeiffer, Clessin Nomenclator, p. 203. 

 1887. Cochlostyla duhiosa Hidalgo, Journ. Conehyl., vol. 35, p. 145, in part. 

 1891. Cochlostyla duhiosa Pilsbky, Man. Conch., ser. 2, vol. 7, pp. 135-6, in part, 

 pi. 32, tig. 52. 



1896. Cochlostyla duhiosa Hi:)algo, Journ. Conehyl., vol. 44, pp. 5-8, in part. 



1897. Cochlostyla miraMlis Moilendorff, Nachr. Deut. Malak. Ges., vol. 29, 



pp. 127-9, in part. 

 3898. Cochlostyla mirahilis MoLLENDORFr, Abhand. Naturf. Ges. Gorlitz, vol. 22, 



p. 113. 

 1901. Cochlostyla duhiosa Hidalgo, Obras, Malac, p. 303-6, in part. 

 1907. Cochlostyla mirahilis Mollendorjff, Kobelt and Winter, Semper. Reis. 



Arch. Philip., vol. 10, pt. 7, pp. 148-9, in part, pi. 30, fig. 1?. 



In the collection of the United States National Museum are two 

 shells, Cat. No. 104053, U.S.N.M., from Samar which have the 

 light peripheral zone bordered above and below by a broad band of 

 chestnut brown. There is also a faint band of brown present at the 

 summit. One of these shells has a brown unbilical area, while in the 

 other there is scarcely an indication of a darker coloration present in 

 this area. The rest of the last whorl is horn colored with indications 

 of hydrophanous bands. Both of our shells are considerably 

 weathered, therefore the poor showing of the hydrophanous marking. 

 The early turns are flesh colored excepting a narrow zone of browm 

 at the summit and the suture. The peristome is broadly expanded 

 and reflected and white. The interior of the aperture is pearly white 

 except where the dark spiral zones show through the substance of 

 the shell. The incised spiral lines are rougher than in the other two 

 races, in fact the shells have a coarser appearance in every way. 

 These shells have 4.5 and 4.3 whorls, respectively, and measure — 

 height, 32.2 and 27.6 mm. ; greater diameter, 34.3 and 32.4 mm. ; 

 lesser diameter, 29.3 and 26.8 mm. 



COCHLOSTYLA DUBIOSA VOLUBILIS Reeve 



Plate 1, Figures 9-12 



1851. Helix hatanica Reeve, Couch. Icon., pi. 9, fig. 2 (not Helix hatanica 



Adams and Reeve 1847 of Voyage of the Samarang). 

 1851. Helix volubilis Reeve, Conch. Icon., see errata. 

 1853. Helix duhiosa PPEiFrEK, Mon. Helic. vivent., vol. 3, p. 188, in part. 

 3859. Helix duhiosa Pfeiffer, Mon. Helic. vivent., vol. 4, p. 210, in part. 

 1876. Helix decipiens Pfeiffer, Mou. Helic. vivent., vol. 7, p. 324, in part. 

 3881. Helix duhiosa Pfeiffer, Clessin Nomenclator, p. 203, in parL 



