. Breviora. . Figure 4. Blastomeryx floricianiis. a, Composite crown view of left lower cheek teeth, XI1/2. h, MCZ 3706, right dPi, X3. The hypoconulid of M-. has a prominent anterointernal cusp, and a strong palaeomeryx fold is present on the protoconid. The internal stylid of P4 which White described as being "very small" on the type varies from strong on MCZ 7763 to absent on MCZ 4221. In P;; of most of the specimens the entoconid is joined to the hypoconid by a semicircular crest around the posterior margin of the tooth, forming an enclosed lake. However, in MCZ 4349 the lake rem
. Breviora. . Figure 4. Blastomeryx floricianiis. a, Composite crown view of left lower cheek teeth, XI1/2. h, MCZ 3706, right dPi, X3. The hypoconulid of M-. has a prominent anterointernal cusp, and a strong palaeomeryx fold is present on the protoconid. The internal stylid of P4 which White described as being "very small" on the type varies from strong on MCZ 7763 to absent on MCZ 4221. In P;; of most of the specimens the entoconid is joined to the hypoconid by a semicircular crest around the posterior margin of the tooth, forming an enclosed lake. However, in MCZ 4349 the lake remains open posteriorly and is divided from the ento- conid by a strong median ridge, which extends posteriorly to the end of the tooth and, after turning medially, ends in a minute cap- sule. These and other variants must be considered to be within the range of variation of this species since intermediate types link every extreme. The lower milk teeth, dp2 to dP4 are known from two speci- mens, MCZ 3706 and 3707? DP4 (Fig. 4b) is five cusped with an elongated pillar between the anterior inner cusps and a conical pillar between the posterior inner cusps. DPo is very similar to P3 in structure and length, but is much narrower. There is little difference between dP-. and 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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