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Show 8 MR. W. F. R. WELDON ON CALLITHRIX GIGOT. [Jail. it shows a slight dilatation. There is no appearance of an " appenc vermiformis," such as was found in Callithrix moloch (cf. fig. 3). Fig. 2. Caecum of Callithrix gigot, h, nat. size. Professor Flower suggested to m e that the enormous depth of the ramus of the mandibles in this Callithrix pointed to the existence of some arrangement resembling that of Mycetes. It was difficult to determine this point in a young female ; but the swollen condition of the thyroid, together with the existence of a patch of ossification on each side, seem to show the possible existence of a howling apparatus in the male (see fig. 4). Ca:cum of Callithrix moloch, § nat. size. The lungs had a simple left lobe, the right lobe being divided by shallow fissures into three, and bearing also a small accessory lobe. The brain was slightly more complex than that of C. moloch. On the outer surface of each cerebral hemisphere was seen & fissure of Sylvius (Sy., fig. 5), behind which was a long anterior temporal fissure (a.t.) ; both being surmounted by an angular gyrus. There |
