418 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



I am here again quite puzzled. The Worcester and Bourns journals 

 pertaining to the Menage Expedition appear to have been lost, and 

 while we know that they collected on the slopes of Mount Halcon and 

 about Calapan and Naujan, we do not have definite localities applying 

 to the numbers on the specimens. For example, their Cochlostyla 

 (Cochlodryas) jlorida bears the number 45. The specimen I have 

 bears the number 282. This may indicate a different zoogeographic 

 region, and I think it does, and it is for that reason that 1 believe we 

 are dealing with a distinct subspecies. Furthermore, I have no 

 absolute intergrades between this arid C. (C.) jlorida jlorida. I have 

 therefore treated it as a distinct subspecies coming from somewhere 

 in northeastern Mindoro. 



COCHLOSTYLA (COCHLODRYAS! FLORIDA (?) 



A series of specimens (U.S.N.M. no. 255778) collected on the east 

 shore of Mansalay Bay show that the race occupying this region has 

 a thick brownish periostracum and is banded like the typical race, but 

 all our specimens are badly worn ; I therefore refrain from defining and 

 naming it here. When more material comes to hand, this race will 

 undoubtedly have to be recognized. It is larger and heavier than 

 and in every way different from the one that I have described from 

 the hills on the western shore of Mansalay Bay. 



COCHLOSTYLA (COCHLODRYAS) ORBITULA (Sowerby) 



Plate 99, Figure 6 



1841. Helix (Cochlostyla) orbitulus Sowerby, Proc. Zool. Soc. London, 1840 



p. 103. 



1842. Helix orbitula Pfeiffer, Symbolae, vol. 2, p. 35^ 



1848. Helix orbitula Pfeiffer, Monographia heliceorum viventium, voL 1, p. 224. 

 1850. Helix orbitula Pfeiffer, Martini-Chemnitz Conchylien Cabinet, ed. 2, vol. 

 1, Abt. 12, Theil 1, pp. 296-297 (in part), pi. 50, figs. 7, 8. 



1850. Helicostyla orbitula Albers, Die Heliceen, ed. 1, p. 104. 



1851. Helix orbitula Reeve, Conchologia iconica, pi. 10, figs. 60a, 60b. 



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



. . ., vol. 1, pp. 311-312, pi. 108A, figs. 7, 8. 

 1853. Helix orbitula Pfeiffer, Monographia heliceorum viventium, vol. 3, p. 298. 



1855. Helicostyla orbitula H. and A. Adams, The genera of recent Mollusca, vol. 2, 



p. 192. 



1856. Bulimus orbitula Pfeiffer, Malakozool. Blatter, vol. 2, p. 146. 



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



p. 359. 



1860. Helicostyla orbitulus Martens, Albers, Die Heliceen, ed. 2, p. 175. 



1868. Bulimus orbitula Pfeiffer, Monographia heliceorum viventium, vol. 5, p. 7. 



1876. Bulimus orbitula Pfeiffer, Monographia heliceorum viventium, vol. 8, p. 7. 



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



vol. 3, p. 199. 

 1887. Cochlostyla orbitula Hidalgo, Journ. Conchyl., vol. 35, p. 152. 

 1890. Cochlostyla orbitula Pilsbry, Man. Conch., ser. 2, vol. 6, p. 179, pi. 58, 



figs. 98, 99. 



