. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 306 TERRESTRIAL AIR-BREATHING MOLLUSKS. I have in my cabinet a reversed individual, of var. a, found in my garden in Burlington, New Jersey. It is a descendant of some Illinois specimens, sent me many years ago by the lamented Kennicott. The adaptation Fig. 199. of the species to colonization is also proved by its having re- cently been found by Mr. J. Matthew Jones in the island of Bermuda, no doubt imported on plants. The genitalia are figured on PI. XI. Fig. K. The ovary is long and narrow. The epididymis is very l
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 306 TERRESTRIAL AIR-BREATHING MOLLUSKS. I have in my cabinet a reversed individual, of var. a, found in my garden in Burlington, New Jersey. It is a descendant of some Illinois specimens, sent me many years ago by the lamented Kennicott. The adaptation Fig. 199. of the species to colonization is also proved by its having re- cently been found by Mr. J. Matthew Jones in the island of Bermuda, no doubt imported on plants. The genitalia are figured on PI. XI. Fig. K. The ovary is long and narrow. The epididymis is very long, convoluted at the end nearer the oviduct. The last-named organ is not much convoluted. The prostate is scalloped along its edges. The genital bladder is globular, small, with a long, small duct. The sac of the penis is extremely long, ribbon-like, one and one half times as long as the oviduct. The vas deferens enters its apex. The long ribbon-like sac of the penis resembles that figured by Dr. Leidy of Mesodon Sayii. There is but little resemblance to the genitalia of T. palli- ata, so nearly allied by its shell. Triodopsis inflecta, Say. Vol. III. PI. XLV. Figs. 2, 3. Shell with the umbilicus closed, depressed; epidermis brownish horn-color, with very fine, hair-like projections; whorls 5, with very minute transverse stria?; suture not much impressed; aperture three-lobed, very much contracted; peristome white, narrow, reflected, with a FlP- 2f)0- deep groove or indentation behind the reflection, contracting the opening so that the outer edge of the peristome does not project beyond the surface of the whorl; on the inner margin of the peristome are two acute teeth, with the points directed inwards, one near the base, the other midway between that and T. inflecta. the junction of the peristome with the body-whorl, with a circular sinus between them, forming one of the lobes of the aperture; parietal wall with a long, arcuated, white tooth; umbilicus covered, its place cons
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