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Show 1899.] REPTILES OE THE MALAY PENINSULA AND SIAM. 611 eaten by Siamese and Chinese. When excited they make a slight hissing noise. Besides obtaining specimens in Bangkok in January, April, August, October, November, and December, we got one at Ayuthia in February in a small lotus-lily pond. A n egg of this species, laid 17th April, 1897, was (as usual with tortoises) white with a hard shell, and measured 32 m m . on its longer and 20 m m . on its shorter axis. Colour (in life). Shell chestnut-brown, with a more or less distinct large black spot on each shield ; edges of the marginal plates more or less yellow ; plastron yellow, each shield with a large black blotch and chestnut-brown markings. Head black, except the crown, which is rich dark brown, and the following very well-defined markings, which are lemon-yellow:-a semicircle of small spots on the upper eyelid; a streak from the top of the snout to the temple, following the canthus rostralis and the supraorbital edge ; a broader streak, nearly joining the last, starting from the superior-posterior corner of the eye and continued along the side of the neck; below this is an interrupted line of oblong spots commencing at the posterior border of the eye and continued down the neck ; a broad streak commences on the loreal region and finishes at the angle of the mouth; two vertical streaks from the nostrils to the mouth, outside and parallel to these streaks are two vertically oblong spots ; the edge of the upper mandible is also yellow; a very distinct V-shaped mark on each side of the mandible; from the angle of the mouth a yellow streak descends to the lower surface of the head and there expands into a large spot, and another streak runs back along the neck. Neck dark brown, with four narrow yellow lines along each side, some very small yellow spots above, and numerous yellow vermicu-lations beneath. Limbs black or dark brown, with lemon-yellow markings. Tail dark brown, with longitudinal yellow lines converging at the tip. Iris very narrow, yellow. Size. A female from Bangkok, adult, measured:- Width of head, 37 m m. Carapace, length, in straight line 155 mm.; following the curve 167 mm. Carapace, width, in straight line 122 mm.; following the curve 153 mm. Hab. Siam, Cambodia, Java. 7. BELLIA CRASSICOLLIS Gray. Emys crassicollis, Cantor, p. 3 ; Giinth. Rept. Brit. Ind. p. 28, pl. iv.' fig. E ; Stol. J. A. S. B. 1870, vol. xxxix, part ii. p. 227. Bellia crassicollis, Blgr. Cat. Chel. etc. p. 98 (skull fig. p. 98, shell fig. p. 99). The Black Tortoise is common in small freshwater streams and ponds in Penang and Kedah : it is one of the species kept by the Chinese priests in the Ayer Etam Tortoise Temple. Apparently, like some other freshwater tortoises, this species is very local, as there is no specimen of it in the Perak Museum and I have not |