. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 128 TERRESTRIAL AIR-BREATHING MOLLUSKS. marginals from 2 adjoining transverse rows), 23—1—23 teeth, with 4 per- fect laterals. This lingual is peculiar in having its marginals bluntly bifid, as in Nanina and Vitnna. Some of the marginals are even trifid. In this re- spect it agrees with the dentition of VUrinoconus, as does also Z. fulvus, but from that genus it differs in having its lateral teeth tricuspid like the centrals. Its dentition is altogether peculiar. Genitalia not observed. Zonites Stearnsi, Blan
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 128 TERRESTRIAL AIR-BREATHING MOLLUSKS. marginals from 2 adjoining transverse rows), 23—1—23 teeth, with 4 per- fect laterals. This lingual is peculiar in having its marginals bluntly bifid, as in Nanina and Vitnna. Some of the marginals are even trifid. In this re- spect it agrees with the dentition of VUrinoconus, as does also Z. fulvus, but from that genus it differs in having its lateral teeth tricuspid like the centrals. Its dentition is altogether peculiar. Genitalia not observed. Zonites Stearnsi, Bland. With land shells from the west coast, kindly sent to me for examination by my friend Mr. Stearns, I lately noticed a single specimen of a form from Astoria, Oregon, allied to Microphysa Lansingi. It is larger, more elevated, and more distinctly striated than that species, has 7 whorls, with rather wider and more rounded aperture, but without the lamella within the outer margin of the peristome. The measurements are, greater diameter 4, lesser 3h mill.; height 2^ mill. Having before me a single specimen, I am unwilling formally to describe the species, which for the present I designate as Zonites Stearnsi (Bland). Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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