xvii.] CARNIVORA. 319 



is narrow, the gluteal surface is very hollow, and the borders 

 all approximate to straight and parallel lines. In the Old- 

 World monkeys the tuberosities of the ischia are greatly 

 everted, and terminate in broad, triangular, flattened, rough 

 surfaces, to which the ischial cutaneous callosities are 

 attached. 



In the true Lemurs the pelvis is very wide ; the ilia are 

 long, narrow, and have a sigmoid curve, while the pubes 

 approach each other at the symphysis at a very open angle, 

 giving an elegant lyre shape to the anterior outline of the 

 pelvis. On the other hand, in the genus Loris of the same 

 group (and to a less extent in Tarsius, Perodicticus, and 

 others) the cavity of the pelvis is remarkably narrow from 

 side to side ; the ilia are straight slender rods, from the 

 lower end of which the large, flattened, and compressed 

 pubes project forward at a right angle, forming a prominent 

 keel at the symphysis. 



In the CARNIVORA the pelvis is generally elongated and 

 narrow, the ilium and ischium being in a straight line, and 

 of nearly equal length. In most species the ilia are straight, 

 flattened, and not everted above (see Fig. 115, p. 317), the 

 iliac surface (is) is very narrow, and confined to the lower 

 part of the bone, as the acetabular and pubic borders meet 

 in front above ; the gluteal surface looks directly outwards 

 and is concave ; the sacral surface (ss) forms a broad flat 

 plane above the attachment to the sacrum, the crest being 

 formed by the united edges of the sacral and gluteal sur- 

 faces, instead of the iliac and gluteal surfaces, as in Man. 

 The symphysis is long ; it includes part of both pubis and 

 ischium, and commonly becomes completely osseous in 

 adult animals. The thyroid foramen (//{/) is oval, with its 

 long axis parallel to that of the whole bone. The ischia are 

 wide and divergent posteriorly. 



