Proceedings of the general meetings for scientific business of the Zoological Society of London, 1904 vol. 2

Page 314

1 9 0 4 .] ANTHROPOID APES. 4 2 5 and over the arch of the forehead 141-160 mm. The breadth at the canines is 50-60 mm. in the 3 3 and 54-68 mm. in the $ $ • The thinnest place in the zygomatic arch is 7-10 mm. (always at least 9 mm. in old 3 3 )• 3. S im ia vellerosus (Gray), P. Z. S . p. 181 (1862). (Plate XXIY. and Text-figs. 108 & 109, fig. 2.) Distribution. Northern Camaroons and higher mountains further south. Distinctive characters. External: ears very small, 50 x 45 mm. Beard very long and thick, completely surrounding face. Arms very long, at least 750 mm. in length; face brown (IF. R.). (Colour of hair in fully adult old 3 3 is yellowish grey.-IV. R.) Text-fig. 108. Skull of Simia vellerosus (Gray). Cranial characters : facial portion of skull slender, flat in front of nostrils ; breadth behind canines from 1 mm. less to 1 mm. more than between the molars. Brain-case, measured from the glabella to the protuberantia occipitalis externa much shorter in the 3 3 than in the § $ , viz. 131-132 mm. and 137 mm. respectively; measured over the arch of the forehead 150-152 mm. and 160 mm. respectively. Breadth at amines in 3 3 62-63 mm., in $ $ 55 mm. The thinnest place in the zygomatic arch is 6-9 mm. high.