416 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



COCHLOSTYLA (COCHLODRYAS) FLORIDA HELICOIDES (Pfeiffer) 



Plate 99, Figure 4 



1841. Helix (Cochlogena) florida var. a Broderip, Proc. Zool. Soc. London, 1840, 



pp. 87-88. 

 1851. Helix floridus Reeve, Conchologia iconica, pi. 11, fig. 43a. 

 1851. Helix florida Deshayes, Ferussac's Histoire naturelle . . . mollusques . . ., 



vol. 1, pp. 307-308 (in part), pi. 104 A, fig. 11. 

 1853. Bulimus helicoides Pfeiffer, Monographia heliceoruni viventium, vol. 3, 



p. 298. 

 1855. Bulimus helicoides Pfeiffer, Martini-Chemnitz Conchylien Cabinet, ed. 2, 



vol. 1, Abt. 13, Theil 1, pp. 119-120, pi. 36, figs. 7, 8. 

 1868. Bulimus helicoides Pfeiffer, Monographia heliceoruni viventium, vol. 6, 



p. 524. 

 1876. Bulimus floridus Pfeiffer, Monographia heliceorum viventium, vol. 7, 



p. 7; in part. 

 1887. Cochlostyla florida helicoides Hidalgo, Journ. Conchyl., vol. 35, p. 152. 

 1890. Cochlostyla florida Pilsbry, Man. Conch., ser. 2, vol. 6, pp. 177-178 (in 



part), pi. 38, fig. 70. 



1895. Hdicostyla florida Pilsbry, Man. Conch., ser. 2, vol. 9, p. 225; in part. 



1896. Cochlostyla florida Elera, Catalogo sistematico de toda la fauna de Filipinas, 



vol. 3, p. 584; in part. 



1897. Cochlostyla helicoides Hidalgo, Journ. Conchyl., vol. 44, pp. 251, 253, 



284, 287. 



1898. Cochlostyla florida Mollendorf, Abh. Naturf. Ges. Gorlitz, vol. 22, p. 131; 



in part. 

 1901. Cochlostyla florida Hidalgo, Obras malacologicas, pp. 455-457 (in part), 



pi. 39, figs. 2, 3. 

 1911. Cochlostyla florida Mollendorff, Kobelt, and Winter, Semper's Rcisen 



im Archipel der Philippinen, vol. 10, pp. 248-249 (in part), pi. 51, figs. 4, 



4a. 

 1932. Cochlostyla (Cochlodryas) florida helicoides Bartsch, Journ. Washington 



Acad. Sci., vol. 22, p. 337. 



The shell is broadly ovate. The periostracum, where present, is 

 bright olive-green. There are no spiral brown bands, nor is there a 

 dark columellar area apparent in any of the specimens before me. 

 The light zone at the summit is present, and the aperture and peristome 

 are white. The early whorls and nucleus are usually denuded of 

 periostracum and are also white. Nuclear whorls 2, well rounded and 

 marked by incremental lines only. The postnuclear whorls are some- 

 what inflated, appressed at the summit, well rounded, and marked by 

 retractively curved lines of growth and microscopic spiral striations, 

 winch are present on both spire and base. The aperture is broadly 

 obliquely oval; the peristome is moderately expanded and reflected; 

 the columella is somewhat excised. 



The specimen described and figured (U.S.N. M. no. 313606a) has 

 5.3 whorls and measures: Length, 30 mm; greater diameter, 26.4 mm; 

 lesser diameter, 23.3 mm. 



A series of additional specimens yields the following measurements: 



