. Land snails from Hawaii, Christmas island, and Samoa. Snails; Mollusks; Mollusks; Mollusks. 46 Bernice P. Bishop Museum—Bulletin 47 gland was greatly reduced, and the spermatheca smaller. The penial retractor muscle was slender. When the dissection was made, the appendix was lying out straight, following the penial retractor muscle. Near the proximal end of the free muscles, its tip was bent down, apparently only because the cavity was not long enough to allow it to lie straight throughout its length. In all maturer specimens the appendix was found lying curled around in the region of the pe
. Land snails from Hawaii, Christmas island, and Samoa. Snails; Mollusks; Mollusks; Mollusks. 46 Bernice P. Bishop Museum—Bulletin 47 gland was greatly reduced, and the spermatheca smaller. The penial retractor muscle was slender. When the dissection was made, the appendix was lying out straight, following the penial retractor muscle. Near the proximal end of the free muscles, its tip was bent down, apparently only because the cavity was not long enough to allow it to lie straight throughout its length. In all maturer specimens the appendix was found lying curled around in the region of the Figure ig.—Ac hatine I la viridans Mighels (No. 87425), «. genitalia, paraneanic stage, lettering as in figure 17; h, genitalia, metaneanic stage. The specimen in the metaneanic stage (fig. 19, b) had no genital orifice, and none was found in still younger animals. It was present in all the preceding groups. Both male and female organs were much reduced, com- pared to the paraneanic stage, and were flattened, as they also were in the younger animals. I found no spermatheca. Possibly it was too minute or else homogeneous with the soft undifferentiated material of the tiny prostate gland. The spermatheca duct branched ofif from the uterus distinctly higher up. The penial retractor muscle was not forked. It continued from the top of the penis down the side a short way and from there was free to a point near the base of the appendix. Group D Examples of the ananeanic stage (fig. 20) (4 3/4 to 5 whorls) were found to have quite inconspicuous genitalia. Besides being smaller than. 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 Pilsbry, Henry Augustus, b. 1862; Cooke, Charles Montague, 1874-; Neal, Marie C. (Marie Catharine), 1889-. Honolulu, Hawaii : The Museum
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Keywords: ., bookauthorp, bookcentury1900, bookdecade1920, booksubjectmollusks
