. Bulletins of American paleontology. . Text-fig. 17. — Irianitrs (?) aff. /. mocrmanni (Kruizinga) $, from the island of Babar, of Timor. Side view from Boehm (1908, pi. 12, fig. 3); ventral view and section of ultimate and penultimate whorls from Jaworski (1933, pi. 11, fig. 8 and text-fig. 7a-b). Approximately xl. hand, the Babar specimen is distinguished from /. moermanni merely by the "absence of the peri-umbiHcal tubercle-line" (trans- lated from German). However, Jaworski's drawings of the whorl- section indicate that the Babar specimen has bladelike primaries and more de
. Bulletins of American paleontology. . Text-fig. 17. — Irianitrs (?) aff. /. mocrmanni (Kruizinga) $, from the island of Babar, of Timor. Side view from Boehm (1908, pi. 12, fig. 3); ventral view and section of ultimate and penultimate whorls from Jaworski (1933, pi. 11, fig. 8 and text-fig. 7a-b). Approximately xl. hand, the Babar specimen is distinguished from /. moermanni merely by the "absence of the peri-umbiHcal tubercle-line" (trans- lated from German). However, Jaworski's drawings of the whorl- section indicate that the Babar specimen has bladelike primaries and more depressed, nontabulate whorls. Generic identity is highly probable, although the Babar specimen appears to belong to a new species. The striking similarity of the phragmocone with the inner and intermediate whorls of the macroconchiate Irianites cf. /. moer- manni (Text-figs. 20-24) is discussed under the description of the latter form. One cannot help but draw the tentative conclusion that their relationship is that of complementary sexual dimorphs. Age. — Two incomplete valves and one almost complete valve of Bositra buchi (F. A. Roomer) (1936, pi, 4, fig. 8; original spell- ing as "Buchii") [ =: Posidonia alpina and P. ornati auct.] were embedded in the matrix at the aperture of a complete although damaged specimen of Irianites moermanni $ (R. G. M. Leiden, st. 126217) from Kemaboe Valley. The side view of the ammonite (PI. 58, fig. 1 a) shows one of the incomplete pyritized valves (the. 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 Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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