FEMALE ORGANS OF ARTIODACTYLA. 665 



which it has a pedunculate attachment. The posterior wall of the 

 sac appears to be formed by the wide and deep pavilion, the 

 margin of the abdominal opening of which is almost entire ; the 

 inner surface of the pavilion is augmented by many long but 

 narrow and highly vascular folds, which radiate from the beginning 

 of the contracted part of the oviduct upon the expanded pavilion. 

 The uterine cornua are long. The numerous and irregular pro- 

 cesses and wrinkles which characterise the inner surface of the 

 horns of the uterus gradually subside in the body as this ap- 

 proaches the vagina, and pass into two or three series of thick and 

 soft ridges of the lining tissue. The os uteri is denoted by a 

 series of close-set, narrow, longitudinal folds, but there is no val- 

 vular projection or ' os tincaB.' In the true vagina the longitudinal 

 folds become fewer, and gradually subside toward the line of sepa- 

 ration between the vagina and urogenital passage. The urethra 

 opens between two longitudinal ridges, but the surface both of 

 these and other similar projections in the urogenital passage is 

 broken by numerous fine, wavy, and oblique furrows. The clitoris 

 projects from the anterior angle of the vulval labia. In the Peccari 

 the vaginal folds toward the uterine end are so arranged as to give 

 a spiral curve to the canal, like that in the Tenrec and Rhino- 

 ceros. Usually one ovisac enlarges, at the heat, in each ovary, 

 or there may be two in one ovary, the Peccary producing not 

 more than two at a birth. 



In the uniparous Camel the ovary is a comparatively small sub- 

 compressed oval body with a smooth and even exterior : it becomes 

 furrowed and subtuberculate in older specimens, or at the heat. 

 The greater part of the capsula ovarii appears to be formed by the 

 fimbriate aperture of the oviduct, which is of very large size, and 

 is supported by a broad fold of peritoneum ; the pavilion as it ap- 

 proaches the contracted part of the duct has its inner surface pro- 

 vided with many broad parallel folds : the oviduct is disposed in 

 a series of four oblique festoons, and is then continued in an un- 

 convoluted course toward the uterus. 



The cornua are of moderate length, and describe each a regular 

 semicircular curve : they have a smooth internal surface, beset with 

 utricular pores, without trace of cotyledonal processes. The corpus 

 uteri is short : the cervix is occupied with a series of oblique but 

 nearly transverse folds, which do not quite complete a circle. Three 

 of these folds are seen from the vagina concentrically disposed 

 around the beginning of the uterus, which has no defined 'os tinea?.' 

 The commencement of the wide vagina presents a smooth and even 

 internal surface. The clitoris commences by two crura, and is 



