136 COCHLOSTYLA-CALOCOCHLEA. 



Hidalgo believes the H. batanica (-f- volubilis) of Reeve to be a 

 distinct species. I am unable, with the material before me, to make 

 the separation, but still it may exist. Reeve's figure of batanica is 

 copied on my plate 32, fig. 53. 



I have examined the type of Helix speciosa Jay, now in the 

 American Museum of Natural History, Central Park, New York 

 City. It is a typical C. dubiosa. The name speciosa has priority 

 over dubiosa, but as Jay's description and figure have been demon- 

 strated to be utterly inadequate by the failure of Pfeiffer and others 

 to identify the species correctly, its rehabilitation as a specific name 

 would be obviously contrary to the recognized canons of nomencla- 

 ture. 



C. LALLOENSIS Pfeiffer. PI. 51, fig. 16 : pi. 26, figs. 2, 3. 



Imperforate, globose-depressed, rounded at the periphery, thin, 

 bluish-white (denuded of cuticle) with two dark brown bands, one 

 above, the other below the periphery ; there is also a narrow brown 

 line below the suture, ascending the spire. 



Whorls 4-4 ; . apex obtuse, white ; last whorl subglobose, a little 



descending in front ; aperture rounded-lunar, oblique, showing the 



bands within ; peristome white, well expanded ; columellar margin 



widened, sloping, slightly arcuate, flattened. Alt. 26, diam. 33 mill. 



Lallo, Province of Cagayan, Luzon, Philippines. 



H. lalloensis PFR., P. Z. S. 1855, p. Ill ; Monogr. iv, p. 214. 



The specimen figured on pi. 26 is. immature. Numerous speci- 

 mens are before me, but all are white, as if denuded of cuticle. It 

 seems to be allied to C. dubiosa, differing in the possession of a sut- 

 ural band and the more oblique columella. The surface is very 

 finely roughened and spirally substriated. 



C. AUGUSTA Albers. PI. 35, figs. 17, 18. 



Imperforate, depressed-globose, rather solid, spirally closely 

 striated, shining, tawny, ornamented with two wide blackish-chest- 

 nut bands with a white space of the same width between them. 

 Spire convex, obtuse ; suture white, margined with chestnut ; whorls 

 4, a little convex, the last rounded, slightly descending in front. 

 Aperture oblique, lunate-round, whitish inside, showing pellucid 

 bands ; peristome white, expanded ; columellar margin oblique, 

 nearly straightly descending, flat, white, subtruncate at base. 



Alt. 21, greater diam. 34, lesser 28 mill. (Pfr. from spec, in coll. 

 Albers.) 



Habitat unknown. 



