M A TIO K I AL FOR THE STUDY OF RuMIXAXTS. 



15 



length. K is divided in two regions. The inner which is occupied by 

 the free end of the penis is about four cm. in length, almost smooth 

 but provided with glands. The remaining distal portion which cor- 

 responds to the preputial prominence is longitudinally plicated and 

 towards the opening beset with some few scattered hairs. The end 

 of the penis is not so pointed as in the Black-buck and not so much 

 twisted (Pl. 1 fig. 3). There is a prominent cushion, quite well deve- 

 loped, which extends on the left side from below and behind, upwards 

 and forwards over to the right side and to the tip. The urethral pro- 

 longation lies in a groove mostly on the lower side of the penis, but 

 turns upwards towards the tip of the same and extends about 6 mm. 

 beyond it. The shape which may be seen from the figure is thus in- 

 termediate between that of the Black-buck and common sheep. 



The kidneys are similar to those of the Black-buck and may 

 be termed as Mueie calls those of the Saiga »subglobularly oval». 

 The left one is a little the larger and measures 53 mm. in length 37 

 in breadth and 36 in thickness. It is perfectly smooth. They were 

 covered by fat at the hilus as in the common goat. 



The male genital organs of Cabas defassa were greatly mutilât, m i 

 but permit, however, the following notes to be made. 



The scrotal sack is pendent about 12 cm. in length with vertical 

 testicles. Its proximal part is well constricted above the testicles. The 

 portion including the testicles is covered by long whitish hair which 

 forms a tuft at the apex. The constricted proximal portion is only 

 scantily beset with long hair, but instead covered by very short hair. 

 This latter covering extends also over an area in front of the scrotum 

 in which four small teats are found. The posterior pair of these is 

 situated IV2 cm. in front of the scrotum and about 2 '/2 cm. apart. 

 The anterior pair is found about 1 V2 resp. 2 cm. in front of the others 

 and sit 3V*2 cm. apart. The teats are about V2 cm. in length in pre- 

 served state. In front of them the hair is again long, single hairs 

 measuring up to 12 cm. in length. The prepuce forms a prominence 

 on the ventral surface which in the present contracted state measures 

 IV2 cm. in height d i h cm. in transversal and 4 cm. in longitudinal 

 diameter. This prominence is covered by hair, especially behind the 

 opening where there is a dense tuft about 4 cm. in length, anteriorly 

 it is less densely hairy. The preputial cavity is differentiated into two 

 portions. The outer or distal one measures 6V2 cm. in length and its 

 inner surface is strongly plicated longitudinally but is not pigmented and 



