EXPLANATION OF THB PLATES. 363 



itie8,or rather horns of the womb. — drf, Wonderful circumvo- 

 lutions of the smaller extremities of the horns. — c c, End of 

 the horns : here after forming a vesicle, they change into del- 

 icate slender branches. 



Fig. X. The part of the skin of the female lumbricoides, which 

 corresponds exactly to the white ventral line : here the ovi- 

 duct opens ; the whole is magnified by tlie microscope. — a «, 

 The white ventral line — fr, The parenchyma found under- 

 neath. — c, The opening of the oviduct, which at the point e 

 takes the name of vagina.— e. Division of the horns of the ute- 

 rus— .rfrf. These horns cut horizontally. 



JFiG. XI. Eggs of the female lumbricoides examined with the mi- 

 croscope. Some a a are of a round form ; others b b are rath- 

 er oval. In all, independently of the outer villous surface, 

 we see a spiral line, regarded by JVeriier as the rudiment oi 

 a young lumbritoides. 



EVD OF TIIR EXPLANATION OF THP PLATES. 



