. Bulletin - United States National Museum. Science. 100 A MANUAL OF AMERICAN LAND SHELLS. Moll., V) has the same type of dentition as in A. GolumManus, but the bases of attachment are more developed, and are produced beyond the reflection at their upper margin. There are 80-1-80 teeth, with 9 per- fect laterals. The genital system of A. Californicus is figured in D of Plate XII, T. M., y. The testicle does not lie far away, imbedded in or resting on the upper lobes of the liver, but lies close against the ovary, in the semicircle formed by the recurving of the apex of the ovary upon itself. I
. Bulletin - United States National Museum. Science. 100 A MANUAL OF AMERICAN LAND SHELLS. Moll., V) has the same type of dentition as in A. GolumManus, but the bases of attachment are more developed, and are produced beyond the reflection at their upper margin. There are 80-1-80 teeth, with 9 per- fect laterals. The genital system of A. Californicus is figured in D of Plate XII, T. M., y. The testicle does not lie far away, imbedded in or resting on the upper lobes of the liver, but lies close against the ovary, in the semicircle formed by the recurving of the apex of the ovary upon itself. In this respect the position of the testicle is different from that of most slugs, and affords an excellent specific character. The testicle is kid- ney-shaped, as it is covered by its investing membrane. It appears to consist of closely bound fasciculi of short,-white, tubular, not aciniform cseca. The epididymis is short, and still more shortened by its exces- sive convolution. The accessory gland is partially imbedded in the ovary. The ovary is large and distinctly lobulated. The oviduct is nar- row, very long, greatly convoluted. The genital bladder is oval, large, with a short, stout duct. The penis is inclosed in a long, tapering sac, terminating in a decided flagellum, in which I detected no capreolus. On the end of the flagellum is a large, globular bulb. The retractor muscle of the penis is attached to the roof of the general visceral cavity, below the pulmonary chamber. It joins the penis at the commence- riG. 63. ^^^^^ ^^ *^^ flagellum. The vas deferens is peculiar. It leaves the prostate gland as usual, runs alongside of the vagina to the base of the penis, thence runs upwards, swelling to an enormous extent, so as to equal the breadth of the penis, then again becomes gradually reduced to its former size, until, as the most delicate thread, it enters the penis at the end of the ormcia. f^.^„^^^^^ bclow the bulb. The penis sac did not appear in the animal extended a
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