. The Conchologists' exchange. Mollusks. 64 THE NAUTILUS. much smaller umbilicus than the Bermudian species, which is more- depressed than Z. nitida^ with a more open and perspective umbilicus. This shell is abundant at the place mentioned, where it is asso- ciated with numerous other land shells, most of them native species. We have been unable to find any foreign species to which this may be referred. It seems to be indi^-enous. The generic reference has been verified by examination of the dentition, which has teeth of the type usual in Zonitoides. There are 6 lateral and about 17 marginal t
. The Conchologists' exchange. Mollusks. 64 THE NAUTILUS. much smaller umbilicus than the Bermudian species, which is more- depressed than Z. nitida^ with a more open and perspective umbilicus. This shell is abundant at the place mentioned, where it is asso- ciated with numerous other land shells, most of them native species. We have been unable to find any foreign species to which this may be referred. It seems to be indi^-enous. The generic reference has been verified by examination of the dentition, which has teeth of the type usual in Zonitoides. There are 6 lateral and about 17 marginal teeth (fig. \d). The jaw is smooth, with a low median projection (fig. Ic). We found no dart in the two dried specimens examined,^ but this may have been due to their Fig. 1. Zonitoides bermudensis. Kaliella turbinata (Gulick). Euconulus turhinatus Gulick, Proc. A. N. S. Phila., 1904, 420, pi. 36, figs. 8, 9, 10. This species is abundant at Church Cave. An examination of the radula shows it to be a typical Kaliella. It resembles the Indian. K. fastigiata (Hutton), but is distinct from that and all other known Indian species, according to Godwin Austen, who kindly compared specimens with his great series of oriental species. K. turbinata was described from sub-fossil examples from the lime-rock quarries. It is therefore not a recent importation; yet the presence of this oriental genus in Bermuda can hardly be accounted for except by the supposition of introduction with plants^ during the period of human 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 Averell, William D. Philadelphia, Wm. D. Averell
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188
