. Anatomical and zoological researches: comprising an account of the zoological results of the two expeditions to western Yunnan in 1868 and 1875; and a monograph of the two cetacean genera, Platanista and Orcella. 790 EEPTILIA. Mr. Theobald^ has recently described a turtle from Thayet Myo on the Irawady, with a plastron covered with granulations, as in the plastron referred by him to T. stel-. Fig. 30. Fig. 31. Skull of Trionyx peguensis, Gray. latus ; and the skull of this specimen, it is important to observe, corresponds to the skull of T. peguensis. Theobald recognized this, but remarks^ t
. Anatomical and zoological researches: comprising an account of the zoological results of the two expeditions to western Yunnan in 1868 and 1875; and a monograph of the two cetacean genera, Platanista and Orcella. 790 EEPTILIA. Mr. Theobald^ has recently described a turtle from Thayet Myo on the Irawady, with a plastron covered with granulations, as in the plastron referred by him to T. stel-. Fig. 30. Fig. 31. Skull of Trionyx peguensis, Gray. latus ; and the skull of this specimen, it is important to observe, corresponds to the skull of T. peguensis. Theobald recognized this, but remarks^ that the plastral characters indicated a totally different animal, and that the style of the coloration of the head was so different from that of T. peguensis that it clearly belonged to some other species. In connection with these remarks, however, by Mr. Theobald, it must be borne in mind that he regarded the turtle figured by him under the name of T. stellatus as the equivalent of T. peguensis—a view of the question I cannot adopt, after reading Dr. Gray's first description of T. peguensis, and after having compared the specimen I have figured under this name with the type of T. peguensis. It is further stated by Mr. Theobald that the dried head of the specimen which served as his type of T. grayi when moistened with water closely resembled the coloration of the head he has figured under the name of T. phayrei, and which he also names T. careniferus, Gray (?), from which, however, he was prevented identify- ing it, as the plastron of T. grayi was covered with granulations. The skull of 1 Proc. As. Soc, Bengal, 1875, p. 176, pi. iii. 2 1. c, p. 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 Anderson, John. B. Quaritch
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