REB59T
. The Congo Expedition of the American Museum of Natural History. Natural history; Mammals. (Fig. 1 continued) Stage 5. First molarf ully up and second molar half up in both jaws; permanent premolars visible between the roots of their predecessors; permanent lower incisors and lower canine fully developed. No. 49484, 9 juv., Niapu, December 4, 1913. Stage 6. Slightly more mature, the molars being full-grown, but premolars of permanent set still covered by the milk teeth in both jaws; caniniform pi nearly mature; upper milk canine has been shed. No. 49468, cf, Niapu, November 25, 1913. Stage 7.
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