ARCTOMYS MARMOTTA. 241 



There are two venae cavse superiores. 



The little epiploon is attached to the liver, as in the guinea-pig. 

 The liver is divided into four lobes and the lobulus Spigelii. The gall- 

 bladder is attached to the second lobe from the left side, which is the 

 largest, and has also the fissure in it for the vein. The capsular renales 

 are oblong bodies, distinct from the kidneys. 



The lower part of the abdomen lies upon the anterior part of the 

 pubis, and the testicles he on each side of the symphysis, so that the 

 bend of the penis is seen within the cavity of the belly, making a little 

 projection, as it were, between the origin of the two musculi recti. The 

 epididymis is very much detached from the testis. The rings of the 

 abdominal muscles are very large, so that the testicles can occasionally 

 lie in them, but never can go far beyond them, as there is no scrotum. 

 The vesiculae semi n ales are two long bags bent upon themselves. The 

 penis, when not erect, is bent back ; it has two bones on each side as in 

 the guinea-pig. The prepuce is very glandular, secreting a thick mucus. 

 The anus would seem to bend down upon the penis. The eyes are 

 very large like a bird's, with a very large or broad cornea : the crystal- 

 line humour is very large in proportion to the eye. The external ears 

 are thin, of a middle size. The meatus auditorius externus is large like 

 that of a bird. The tympanum is very large l . The lacrymal glands 

 are large and white, as it were granulated 2 . 



[Family ARCTOMYIDsE.] 



The Marmot [Arctomys Marmotta 3 , Schreb.]. 

 The stomach is pretty round; the pylorus, of course, is near the 



1 [Hunt. Prep. No. 1599. See also the Appendix to Russell's 'History of Aleppo,' 

 where the above notes are given, with the following remark : — " Having met with 

 nothing more on the internal structure of the jerboa than what is given by Grnelin 

 from M. Buffon (Hist. Nat. torn, xiii.), I applied to my worthy friend Mr. John 

 Hunter, who very obligingly favoured me with the following circumstances from his 

 'Adversaria' by way of supplement : " — then follows an extract from the notes in the 

 text. When alluding to this testimony by Dr. Patrick Russell to the 'Adversaria ' of 

 Hunter in the ed. of the 'Animal Economy,' 8vo, 1837, p. 393, I believed them to 

 be lost.] 



2 [In the menagerie of the late Sir R. Heron, M.P., the female of a pair of jerboas, 

 kept in confinement since June 1843, brought forth, May 14th, 1844, two yoiing ones, 

 which were blind, naked, and so continued to the 12th of June. Five weeks elapsed 

 ere they appeared to have the use of their eyes or limbs ; they had then "little fur, 

 but were a good deal grown." At 46 days' old they were three-quarters grown, well 

 clothed, active, and ate corn. The jerboas were never seen to drink. — Proceedings 

 of the Zoological Society, August 13th, 1846.] 



3 [The skull of this marmot is No. 2256, Osteol. Series.] 



VOL. n. K 



