. Breviora. 1961 XEW MIOCEXK ' and liypoconc hciiii;' of ('i(ual size with tlu- protocoiic and the ciitostylo hoinji' smaller. The eiitostyle curves forward and joins tlic internal edji:e of the i)rotoeone at tlie same level as does the hypocone. There is a small posterior eingulum running from tlie hyi)oeone to the base of the metaeone, and separated from the postei-oloph by a small ] Figure 2. Heliscomys scJilailjrri ii. sp., Type, Xo. 7335, RP^-M^, anterior end to the left, X30. Tlie molars are somewhat more lophate in ai)pearaiiee ihan are those of Tldiscoiin/s (jntjoDji
. Breviora. 1961 XEW MIOCEXK ' and liypoconc hciiii;' of ('i(ual size with tlu- protocoiic and the ciitostylo hoinji' smaller. The eiitostyle curves forward and joins tlic internal edji:e of the i)rotoeone at tlie same level as does the hypocone. There is a small posterior eingulum running from tlie hyi)oeone to the base of the metaeone, and separated from the postei-oloph by a small ] Figure 2. Heliscomys scJilailjrri ii. sp., Type, Xo. 7335, RP^-M^, anterior end to the left, X30. Tlie molars are somewhat more lophate in ai)pearaiiee ihan are those of Tldiscoiin/s (jntjoDji (Wood. 1933) and //. Iintcln ri (Wood. 1935). although the j)rineipal cusps are still prominent. In this respect the teeth r(>semble more closely those of //. t( luiicr ps ((lalbreath. 194S). Tlie molars of both agree in having anterior and posterior cingula that rise rather steeply to join the pi-otostyle and (Mitostyh'. These cusps are closely appressed with no gap between them, a further point of resemblance to //. f< iiiiiaps. The median va]le\' is straight on both teeth, slanting somewhat ]iosteriorly, not sinuous as in II. (/rrf/m-iil and //. IkiIcIk )i. The ant(M'ior cingnlum is stronger than the jjosterior on both AC and M-. Diifciissioii: Although it is somewhal larger and shows a few minoi' ditt'erences, Heliscnintis svhhiikjt ri is extremely close to //. hiniictps. Roth sjx'cies lia\'e an nndivded internal eingulum 2 XaiiU'd for K. M. SdilaiUJcT in rccdLrnilinn (if his extensive work in the (ioslicn Hole 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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