. Bulletin - United States National Museum. Science. 80 NATIONAL MUSEUM BULLETIN 260 palm of giiathopod 1. Schisturella zopa has a transverse palm on gnathopod 1 and an adze-sliaped anteroventral extension of epimeron Figure 37.—Schisturella iotorami, new species, male, mm, Santa Monica Bay, Calif., 183 m: a, maxilla 1, aboral; h, maxilla 2; c, outer plate of maxilla 1, oral; d, inner ramus of uropod 2; ej, mandibles; g, maxilliped; h,i, left and right mandibular molars; /, lower lip (part). Tmetonyx Stebbing Tmetonyx Stebbing, 1906, p. 73. Remarks.—J. L. Barnard (1962a) synonymiz
. Bulletin - United States National Museum. Science. 80 NATIONAL MUSEUM BULLETIN 260 palm of giiathopod 1. Schisturella zopa has a transverse palm on gnathopod 1 and an adze-sliaped anteroventral extension of epimeron Figure 37.—Schisturella iotorami, new species, male, mm, Santa Monica Bay, Calif., 183 m: a, maxilla 1, aboral; h, maxilla 2; c, outer plate of maxilla 1, oral; d, inner ramus of uropod 2; ej, mandibles; g, maxilliped; h,i, left and right mandibular molars; /, lower lip (part). Tmetonyx Stebbing Tmetonyx Stebbing, 1906, p. 73. Remarks.—J. L. Barnard (1962a) synonymized Tmetonyx Steb- bing with TrypJiosa Boeck, but the type-species of the latter is synony- mous with Orchomene even though the remaining species of '"'•Try- jylioscC^ are not. In view of the normal first coxa of the type-species of Tmetonyx^ Oniscus cicada O. Fabricius, and the tapering first coxae of other species of Tmetonyx and those of '''•Trypliosa''' auct., it might have been wiser to remove from Tmetonyx all species except the type and assign them to '"''Tryphosa'''' auct. (= TrypJiosella Bonnier). Two subgenera within '•'•Trypliosa''' might have to be established in recog- nition of the presence or absence of a dactylar tooth on gnathopod 1. In this way one might hypothesize that ancestors like Tmetonyx cicada gave rise to members of ^''Trypliosa''' through reduction of coxa 1, and that some of these, through loss of the dactylar tooth, gave rise to the members of the second "subgenus" of '"'"TrypTiosaP The alter-. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Of
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