longest tail sheaths in the egg cajjsules. r 

 dee]3est bodies have also the deepest cavity 

 of the capsule. 



The foregoing characters evidently cann<i 

 Lamarckian hypothesis, for so ixM tcct a case 

 formed primitively /;/ utero around the i nil)i - 

 ciple of use and disuse itself, such an clal: 

 not have been formed for the i)rotecii<»n ■ 

 was just about to be hatched, nor would the 

 for aquatic breathing. It is, moreover, a \ 

 in uterine development the secondary nicr- 

 rather than increased. Natural selection, 

 understood, is equally inadec|uate to expla' 

 the present capsule; for, from this stand[)()- 

 tions would have had to be selected tluou 

 complicated changes in two entirely diffei 

 line of the evolution of the embryo and in 

 of the capsule. And it is more than diffici 

 each of these i)arallel series the correspondi- 



series of constantly adapted stages furnish ■ 



The Reproductive Ori^dus of tJie LimMe. 

 W. R. Coe and H. W. Kunkcl Vale L niv 

 of this investigation, A>i?ilellci p.N/e/inK 



slender, worm-like lizard, entirely devoid ot 1 

 except for slight rudiments of the ])ch ic 

 the surface of the sand and teeds iipnii ^ 



Although described in lS5-^ '^-^ 

 studied except with reganl to it. externa 



An examination of its viscera reveals 

 anatomical peculiarities, among which t 

 organs are perhaps the most striking. 



organs of the male. 



As in many other lizards. Anniella 

 young, only two of which are j)ro(luce(. 



