GENERATION OF ANIMALS, I. in. 



the Mvipara, however, have their testicles in front,** 

 though some of them have them inside by the end of 

 the abdomen^ — e.g., the dolphin— and have no pass- 

 ages, but a sexual duct* which leads from them to 

 the outside, as the ox-fish "^ have ; while some have 

 the testicles outside, and of these some are pendent 

 (as in man), others fastened by the fundament (as in 

 swine). I have given a more accurate account of 

 these in the Researches upon Animals.'^ 



The uterus * is always double without exception, 

 just as in males there are always two testes >^'ithout 

 exception. In some animals the uterus is by the 

 pudenda (as it is in women and in all animals that are 

 \-iviparous internally as well as externally, and such 

 of the fishes as lay their eggs lisibly) ; in other 

 animals the uterus is up towards the diaphragm ^ (as 

 it is in all birds and in the \iviparous fishes). The 

 Crustacea, too, and the Cephalopods have a double 

 uterus, since the membranes which surround their 

 " eggs " ' as they are called are uterine in nature. 



The uterus is particularly indistinct in the Octo- 

 puses, so that it appears to be single.'' The reason 

 for this is that the whole bulk of the creature's body 

 is of similar consistency throughout. In the large 



supposes poes here to be "oxen." A.-W. translate " \vie die 

 Stiere." 



<* See H.A. Bk. Ill, ch. 1. 



' It should be noted, once for all, that this term includes 

 what are now known as oviducts. 



^ Aristotle does not confine his use of this term to mam- 

 mals, which alone have a diaphragm in the usual sense of 

 that term, and hence it must be understood to refer also to 

 the corresponding position in lower animals, as in the present 

 passage ; cf. also iJe respirations 475 a 8, where the viro^iofia 

 of wasps, crickets, etc., is mentioned. 



See H.A. Bk. V, ch. 18. * Cf. 758 a 8. 



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