. Bulletin of the Museum of Comparative Zoology at Harvard College. 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 Vitrina. Some of the marginals are even trifid. In this re- spect it agrees with the dentition of Vitrinoconus, as does also , 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, Bla;>d. W
. Bulletin of the Museum of Comparative Zoology at Harvard College. 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 Vitrina. Some of the marginals are even trifid. In this re- spect it agrees with the dentition of Vitrinoconus, as does also , 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, Bla;>d. 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 Microplnjsa 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 3^ mill.; height 2h mill. Having before me a single specimen, I am unwilling formally to describe the species, which for the present I designate as Zoniles 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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Keywords: ., bookauthorha, bookcentury1800, bookdecade1870, booksubjectzoology
