. Des escargots de Hawaï, l'île de Noël, et Samoa. Mollusques les mollusques escargots ; ; ; mollusques. Figure 15.-PartuHna mauiensis, une (Pfeiffer), les organes génitaux ; b, Partulina horneri (Baldwin), les organes génitaux ; c, Partuli NewcombX^ta dubia (, organes génitaux ; d, Newcomhia cumingi (Newcomb), organes génitaux. Cooke et j'ai examiné. '^ redfieldii Partulina et tessellata, Achati- nella decipens, vulpina, lorata var. pidchella, et turgida n'étaient pas distin- guishable l'un de l'autre. Parttdina proxima était similaire à l'exception d'une courte première division de l'annexe et d'un petit rein, qui ressemblait à celle de F. rufa. P. ruf

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. Land snails from Hawaii, Christmas island, and Samoa. Snails; Mollusks; Mollusks; Mollusks. Figure 15.—a, PartuHna mauiensis (Pfeiffer), genitalia; b, Partulina horneri (Baldwin), genitalia; c, Partuli^ta dubia (NewcombX, genitalia; d, Newcomhia cumingi (Newcomb), genitalia. Cooke and I have examined. Partulina redfieldii '^ and tessellata, Achati- nella decipens, vulpina, lorata var. pidchella, and turgida were not distin- guishable from one another. Parttdina proxima was similar except for a shorter first division of the appendix and a narrow kidney, which resembled that of F. rufa. P. rufa also differed in the large size of its prostate gland. P. virgulata differed in the longer third division of the appendix. 13 Pilsbry, H. A., and Cooke, C. M., Achatinellidae: Man. Conch., vol. 22, p. xiv, 1912-1914. 1* An interesting discovery was made in connection with the nervous system of P. redHeldii, which is, however, unrelated to the matter under discussion—the presence of a slender subcerebral commissure (fig. i6), which was found in three other Orthurethra by Hugh Watson, See The presence of a subcerebral commissure in the Orthurethra: Mai. Soc. lyondon, Proc, vol. 15, pp. 280-283, 1923. As it is absent in some of the higher groups of gastropods, the presence of this nerve in Achatinellidae suggests close relationship of that family with lower groups of gastropods.. 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 work.. Pilsbry, Henry Augustus, b. 1862; Cooke, Charles Montague, 1874-; Neal, Marie C. (Marie Catharine), 1889-. Honolulu, Hawaii : The Museum

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