Abnormal Oviducts in Homarus vulgaris. 5 



a duct to the third or antepenultimate leg ; and Herrmann *, 

 in 1890 described the presence of ova in the fore part of the 

 testis of a lobster. 



Fio-. 2. 



Dissection of the ovary aud its ducts, seeu from above. «, the duct to 

 the third leg- on the right side ; b and c, the ducts to the fourth and 

 fifth legs on the left side. Two-thirds natural size. 



In the case under consideration there is no question of 

 hermaphroditism, in spite of the fact that one of the three 

 ducts opens in the position of the vas deferens of the male. 

 The specimen is clearly a functional female, since it carries 

 numerous ova attached to the abdominal appendages. The 

 first pair of abdominal appendages differ in no respect from 

 those of the normal female, and the sternal pouch or seminal 

 receptacle, between the bases of the last two pairs of legs, is 

 * Herrmann, (.1.. Bull. sci. France et Belg. xxii. 1890, p. -l;3. 



