512 DR. J. MURIE ON HYZNA BRUNNEA. 
the above species. No pyramidalis is present. With regard to the psoas and iliacus 
muscles I have found H. brunnea to agree with Meckel’s account; as he says, the psoas 
parvus is considerable, and the psoas magnus double; but an additional part which he 
is in doubt whether it belongs to the parvus or magnus, I am inclined to regard as but 
part of the latter. The iliacus is small and feeble. 
Including head, neck, and trunk, such are the main muscular features which charac- 
terize the frame of the South-African form of Hyena. They are in a manner typical 
of the genus now living, and doubtless, with possibly slight modification, existed in their 
ancient brethren, for example, the Great Cave-Hyena, H. spelwa. To the massive 
fleshy development of the jaws and neck must we attribute the terrible strength of 
these animals, enabling them with ease to seize and drag along the carcasses of prey far 
surpassing themselves in size, and to crunch great bones with astounding facility. As 
I have hinted, the trunk is but fairly muscularly developed, the limbs relatively weaker ; 
but as regards the muscles of the latter and their tendinous distribution, it is not my 
intention at present to enter upon a description of them. 
DESCRIPTION OF THE PLATE. 
PLATE LXIII. 
Fig. 1. The urino-generative parts of the Brown Hyena removed en masse, and seen in 
profile. Their natural dimensions. ; 
U, uterus; 7.c, the right cornu cut across at its proximal end; Q, left 
ovary; B, urinary bladder; wr, ureters severed; r, rectum; J.a, portion of 
levator ani muscle ; ¢.g, compressor glandule of left side ; ¢, teat. 
Fig. 2. A view of the opposite (right) side, showing the compound anal gland dis- 
sected. 
1, 2,3, the respective glandular chambers. Two of them have been cut 
through to expose their cavities and (g/) their glandular walls; and the 
third (5), intact, displays the exterior nodulated surface when the super- 
incumbent cellular tissue and muscle (¢.g) are cleared off. The dotted 
lines denote the direction of the passages towards the postanal fossa; V and 
uth, portions of vagina and urethra; 7, rectum; ¢, teat; Z.a, levator ani. 
Nat. size. 
