DR. J. MURIE ON THE ORGANIZATION OF THE CAAING WHALE. 301 
Globiceps; compare fig. 63, with which references agree, save Spc and Ifcd to 
supra- and infra-caudals. The Nos. 40, 45, 60, denote the vertebre, counting 
from the skull. 
PLATE XXXVIII. 
Fig. 73. A posterior or deep view of the rectum, uterus, &c. of G. melas. 
Fig. 74. The uterus, its cornua, and the urinary bladder, opened, and from above. 
Fig. 75. Pelvic bones, and their ligamentous bridge &c., deep surface. 
Fig. 76. Dissection of the external genital region of the same animal, to show situation 
of the mammary gland and the muscles acting on it and connected with the 
genitals. An outline of the bladder and uterus are left in place. The super- 
ficial muscular layer remains on the right side; and on the left a deeper layer 
is displayed. 
Fig. 77. The left moiety of the same region, exhibiting a still deeper muscular layer. 
Fig. 78. Another view of fig. 77, but seen from the side, and with some of the muscles 
removed. 
All the above sketches are reductions from nature ; the lettering corresponds through- 
out. Whilst some of the muscles in one figure are shown entire, their origin or inser- 
tion only is displayed in the succeeding layer. 
Ut, uterus; os, its os tince; va, vagina; V, vulva, and cl, clitoris; c, cornu, and cc, same 
opened on right side; 0, ovary, and o*, same split open; pav, ovarian pavilion; B, 
urinary bladder; w, urethra; we, ureter; A, anus; 7, rectum, v, hemorrhoidal vein ; 
vi, internal iliac artery; Mg/, mammary gland; gi, rectal glands; Pl, pelvis, * repre- 
senting an anterior, and ** a posterior cartilaginous nodule; Pf, interpelvic fascia; 
P.c, panniculus carnosus; L.a, levator ani; Sp.a, sphincter ani; Rad &c., rectus 
abdominis &c.; H.c, erector clitoridis; C.m, compressor mamme; C.wr, constrictores 
urethre ; Spv, sphincter vagine ; Dtp, deep transversus perinei; Jsc, ischio-coccygeus ; 
P & Ic, pubo- and ilio-coccygeus; an, artery and nerve transmitted through aper- 
ture in interpelvic fascia (probably the homologues of obturator artery and nerve in 
quadrupeds). 
