46 K. MITSUKURI. 



Fig. 31. From the region where the two lateral limbs have just 



united. 

 Fig. 32. From the region where the head is partly sunk below 



the level of the blastoderm. 

 Fig. 33. From the region of the head which is wholly sunk 

 below the level of the blastoderm. 

 Fig. 30a. Region of the left amniotic limb in Fig. 30. under a higher 



power. BD x 4. 

 Fig. 31a. Left half of the amnion in Fig. 31. DD x 4, 

 Figs. 3-1-38. Selected transverse sections from the Clemmy?^ embryo 

 represented in Fig. 3 and 3rt. CG x 1. 

 Fig. 34. From the region of the lateral limbs of the Amnion. 

 Figs. 35-36. From the dorsal region. 

 Fig. 37. From the region of the heart. 

 Fig. 38. From the region of the liead. 

 Fig. 3ôa. Median dorsal part of the Amnion in Fig. 35. under a 



higher power. DD x 4. 

 Fig. 36a. Median dorsal part of tlie Amnion in Fig. 36. under a 



higher power. DD x 4. 

 Fig. 361). The same region a few sections in front of Fig. 36. 



DD X 4. 

 Fig. 37a. Median dorsal part of the Amnion in Fig. 37. under a 



higher power. DD x 4. 

 Fig. 39. Transverse section of the posterior tube of the Amnion 

 from the embryo given in Fig. 5. near its proximal end. 

 OCxl. 

 Fig. 40. Do. from about its middle. (70 x 1. 



Fig. 41. Longitudinal Secti<ju, slightly out of the median line, of 

 a Cleuunys embryo from the same stage as that represented 

 in Fig. 3. BB x 2. 



