310 Rev. M. J. Berkeley on Helicolimax Lamarckii. 
the biliary duct, though I have no doubt that they are the same in the 
two. The general appearance and comparative length of the rest of the 
intestine are nearly the same. 
Again, with respect to the organs of generation we have the ovary, 
oviduct, matrix and “ vessie’’* the same, only the common receptacle of 
the two last is become stronger and more muscular. The testicle and vas 
deferens again are precisely the same. The principal points in which the 
two genera differ, are, that there is no process of the dart as in Helix, 
except better opportunities of investigation should prove that the 
muscular body above mentioned, serves this purpose, in addition to its 
other functions, but even then its position would be widely different; 
there are also no multiplied processes or any appendages; and the body 
of the penis is bulbiform, instead of flagelliform; and its general struc- 
ture is described above somewhat varied. 
With Parmacella it agrees in almost every point, except that it has no 
appendages to the penis ; that it has not the additional ganglion marked 
ds . in Cuvier’s figure of Parmacella, and thatin Parmacella there 
are two distinct muscles for the retraction of the mass of the mouth, 
instead of one. Cuvier has not indeed given any account of the interior 
of the organs of generation, but the outward appearance is so similar 
* In Helix aspersa there is another organ besides the “ vessie,” whose use I 
am unacquainted with, equally as with that of the “‘ vessie” itself. I have not 
been able to examine the Helix Pomatia, from which Cuvier’s dissections are 
taken, and cannot therefore say whether it exists in that alsc, but conclude that 
it does not as he takes no notice of it, nor is there any indication of it in the 
figures: in Heliw aspersa it is so prominent as to strike any one immediately 
who is tracing the course of the tube which leads to the ‘“ vessie.”’? Not only 
is there a tube given off from the point where the matrix enters the common 
cavity, to bear the ‘ vessie”’; but this tube at some distance from its origin is 
forked, andone of the divisions, that of the “ vessie’’ on the right hand, the 
smaller of the two, runs along the side of the matrix opposite to that which 
bears the narrow portion of the testicle, while that on the left, after curling 
about twice or thrice, at length is attached to that portion of the testicle, at 
about the middle of its course, accompanies it almost to the end of the matrix, 
and there ends obtusely, forming (as it were) a sort of cecum to the tube of the 
“¢ vessie.”’ 
