462 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



The medium size and yellow color will distinguish this race from 

 all the others. In one or two of the specimens there is a slight tend- 

 ency toward a red-brown hair line at the summit of the whorls. 



COCHLOSTYLA (PROCHILUS) PARTULOIDES (Broderip) 



Plate 106 



1841. Bulinus partuloides Bkoderip, Proc. Zool. Soc. London, 1840, p. 181. 



1841. Bidimus partuloides Pfeiffer, Symbolae, vol. 3, p. 49. 



1842. Bulimus partuloides Reeve, Conchologia systematica . . ., vol. 2, pi. 11, 



figs. 54a, 54b. 

 1853. Bulimus partuloides Pfeiffer, Monographia heliceorum viventium, vol. 3, 



p. 323. 

 1856. Bulimus (Amphidromus) partuloides Pfeiffer, Malakozool. Blatter, vol. 



2, p. 147. 



1859. Bulimus partuloides Pfeiffer, Monographia heliceorum viventium, vol. 4, 



p. 382. 



1860. Prochilus partuloides Martens, Albers, Die Heliceen, ed. 2, p. 179. 



1861. Bulimus pan Pfeiffer, Proc. Zool. Soc. London, 1861, p. 23, pi. 3, fig. 5; 



not Helix pan Broderip, 1841. 

 1861. Bulimus pan Pfeiffer, Novitates conchologicae, p. 163, pi. 44, figs. 6, 7. 

 1868. Bulimus partuloides Pfeiffer, Monographia heliceorum viventium, vol. 



6, p. 28. 

 1877. Bulimus partuloides Pfeiffer, Monographia heliceorum viventium, vol. 



8, p. 42. 

 1877. Cochlostyla nigrocincta Semper, Reisen im Archipel der Philippinen, pt. 2, 



vol. 3, p. 221. 

 1877. Cochlostyla partuloides Semper, ibid., p. 221. 

 1892. Cochlostyla partuloides Pilsbry, Man. Conch., ser. 2, vol. 8, p. 50, pi. 16, 



figs. 20-24. 



1895. Helicostyla (Prochilus) parhdoides Pilsbry, Man. Conch., ser. 2, vol. 9, p. 231. 



1896. Prochilus partuloides Elera, Catalogo sistematico de toda la fauna de 



Filipinas, vol. 3, p. 611. 



1897. Cochlostyla partuloides Hidalgo, Journ. Conchy]., vol. 44, pp. 258, 305, 



309, 331, 332, 341, 350. 



1898. Cochlostyla partuloides Mollendorff, Abh. Naturf. Ges. Gorlitz, vol. 22, 



p. 145. 

 1901. Cochlostyla partuloides Hidalgo, Obras malacologicas, p. 57. 

 1914. Cochlostyla (Prochilus) partuloides Mollendorff, Kobelt, and Winter, 



Semper 's Reisen im Archipel der Philippinen, vol. 10, pp. 332-333, pi. 73, 



figs. 13, 14. 

 1932. Cochlostyla (Prochilus) partuloides Bartsch, Journ. Washington Acad. 



Sci., vol. 22, p. 338. 



In this species, which also appears to be mutating, we have, as in 

 Cochlostyla (Prochilus) virgata (Jay), a great variation in shape and 

 coloration. Both of these features are shown on plate 106. 



The shape of the shell varies from ovate to elongate-ovate. The 

 shorter spire would be represented in what Pfeiffer called pan, and 

 what Semper renamed Cochlostyla nigrocincta. 



The nuclear whorls may be light or dark or smy shade intermediate 

 between them. There is here, as in Cochlostyla (Prochilus) virgata, 



