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latter had a diameter of about 0"5 mm . The prostatic part of the seminal duct was short, 

 the muscular part at least four times as long as the penis into which it passed by and by. 

 The almost cylindric penis had a length of about l'ô"™; anteriorly the glans of a trun- 

 cate conical form (fig. 19) projected, its diameter was 0'2 mm . The inside of the glans was 

 in the common way provided with closely set, slightly yellowish hooklets, most of which 

 were rather clumsy, of a length of 0.01 3 mm , by a height of up to 0"07 mm . The armature 

 continues, as usual, rather far into the seminal duct. The duct of the mucous gland was 

 rather wide, with a strong fold. The vestibulum with rather strong longitudinal folds. 



