308 Rev. M. J. Berkeley's Anatomy of 



left, passes towards the upper part of the great lobe of the testicle into 

 the matrix, which is a long sac variously puckered and folded, exactly as 

 in Helix ; this at the extremity gives off a thread, which enters into a 

 strong elliptic muscular body at one end of it, and this again enters by 

 a narrow neck, on one side, into the bottom of the pouch in which also 

 the male organ has its external orifice. The walls of this last pouch are 

 marked with faint transverse furrows. At the same point also as that in 

 which the matrix enters into the muscular body, the tube of the " vessie" 

 also is inserted. This is short, and the " vessie" itself is situated almost 

 at the top of the matrix. It is not very clear what is the use of so strong 

 a body as that into which these organs enter together, except it have 

 some power of causing an inversion of the neck by which itself is inserted 

 into the outward pouch. I was unable to ascertain its internal structure, 

 as I had but a single specimen in which the organs of generation were in 

 a full state of developement. 



The lower portion of the testicle is shaped like an egg cut through its 

 major axis ; on the flat side at the point where the oviduct enters the 

 matrix is a small lobe ; the testicle is continued in a fine line along the 

 matrix, and at length at the top of the matrix gives off the vas deferens which 

 after twice or thrice passing from right to left, and from left to right 

 enters at one side towards the base into the bulbiform penis, which is 

 placed at the base of the external pouch, and is continued through this, 

 which it perforates by a tube which is adnate with the walls of the pouch 

 on one side, in such a manner, that the bottom of the pouch hangs a 

 little way down the top of the bulb like a little flap all round, except on 

 the side on which the tube is adnate, for there the external surface of the 

 pouch and bulb are perfectly continuous ; hence looking at the pouch and 

 bulb externally a distinct line is seen about three parts round dividing the 

 sac formed by the two, which externally is apparently one, into two portions. 

 A correct notion of its structure may be formed from conceiving the 

 neck of a Florence flask passing through the bottom of a common wine 

 bottle, the neck being appUed in its whole length to one side of the 

 bottle ; and the huUow base of the bottle resting upon the top of the 

 bulb of the flask. The bulb consists of a double coat, the inner being the 

 thickest, and (probably by means of the structure of these coats) can reverse 

 itself so as to pass through the above mentioned tube, and is drawn back 



