SCIURUS CINEREUS. 245 



are two in number. The duct enters the duodenum pretty near the 

 pylorus, almost as in the porcupine. The gall is pretty yellow and thick. 

 The lobe of the liver, to which the gall-bladder is fixed, is as large as 

 the left, and is divided into three, two of which are covered by the left 

 lobe, and the bladder is between the two right of these divisions. In 

 another specimen the second lobe from the left, or that to which the 

 bladder was attached, had two pretty deep notches in it. 



The pancreas is made up of two lobes as usual. The spleen is as in 

 a dog. The kidneys also are as in a dog ; but the right is much higher 

 than the left. 



All the foregoing account answers very well with the English squirrel ; 

 but this [one compared] being a female, we can go no further 1 . I believe 

 that this Virginian squirrel had but one punctum lacrymale. The 

 testicles are half out of the abdomen and half in ; so that they can be 

 pushed entirely out or entirely in. The passage is upon the outer edge 

 of the rectus muscle, is very large, and is half an inch above the os 

 pubis : this is as in the porcupine and guinea-pig. The vasa deferentia 

 pass behind the bladder ; and, when passing through the prostate gland, 

 they unite with the ducts of the vesicuhe seminales, and each common 

 duct passes a little way further in the membranous part of the urethra. 

 The vesiculae seminales are very small, having a very long duct, and 

 seem rather to be glandular than vesicular. 



The penis is pretty long, passing from the divisions of the pubis along 

 the belly, between the testes ; and about half an inch further it is bent 

 back again, which last part is about another half-inch in length, so 

 that it returns to near the testes. All this last part has a bone in it. 

 The bulb is covered by a pretty strong tendinous coat, and is only 

 attached to the crura by a loose cellular membrane : as it passes into 

 the penis and becomes urethra, it seems to dip into the centre of the 

 penis pretty near the union of the crura. 



There are two bodies placed on the sides of the anus about the big- 

 ness of a little pea : each body [Cowperian gland] seems to be coiled 

 upon itself like a nautilus ; from thence goes a pretty thick duct which 

 is turned round the other, and passes to the bulb of the urethra, 

 emerging from under the accelerator urinae ; and at the bulb it opens 

 into a duct common to it and the one of the other side. From this 

 common duct passes back a large foramen csecum, which is, as it were, 

 between the two ducts where they are passing on the side of the bulb 

 under the acceleratores : the common duct passes along the urethra, in 



1 [The female organs of Sciurus vulgaris form the Hunt. Preps. No. 2746, uniin- 

 prcgnated; No. 3470, impregnated.] 



