194 THE CHICAGO ACADEMY OF SCIENCES. 



Genitalia (Fig. 42): Testicle round or oval, partially 

 concealed by the liver, brown in color and apparently com- 



FIG. 42. 



Genitalia of LIMAX MAXIMUS Linne. (After Scharff.) ag, albumin- 

 iparous gland; hg, ovotestis; hd, hermaphrodite duct (epididymis); n, pros- 

 tate gland; os, uterine portion of hermaphrodite duct; sp, vas deferens; 

 rm, retractor muscle; ov, oviduct; p, penis; rec, receptaculum seminis. 



posed of rounded acini (lobulated in flavus); epididymis an 

 undulating tube leading from the testicle to the inner side of 

 the junction of the ovary with the prostate gland, and opening 

 into a groove in the oviduct, which is continuous at its inferior 

 extremity with the vas deferens; prostate gland whitish, stri- 

 ated 'in appearance, occupying the inner side of the whole 

 length of the oviduct; vas deferens comparatively short, pass- 

 ing from the prostate gland to the penis, in some forms (max- 

 imus, flavus, etc.) joining the latter at its summit, and in others 

 (agresfisand campestris} at its base; penis generally long, cylin- 

 droid and irregular, lying at the right anterior part of the vis- 

 ceral cavity, and joining at its termination a short cloaca; a re- 

 tractor muscle is inserted into its summit, which arises from 

 the muscular investment of the visceral cavity, posterior to the 

 position of the pulmonary cavity; in some species the penis 



