Fig. 39. Side view of same embryo.
Figs. 40-42. Drawings by Professor Balfour of three transverse sections through the embryo from which fig. 36 was taken. (Zeiss c, Camera.) Figs. 40 and 42 pass through the region of the blastopore.
bl. Blastopore. ep. Epiblast. hy. Hypoblast. me. Mesenteron. mes. Mesoblastic somite.
Fig. 43. Male generative organs of Peripatus capensis, viewed from the dorsal surface. (From a drawing by Miss Balfour.)
a.g. Enlarged crural glands of last pair of legs. F.16, 17. Last pairs of legs. f. Small accessory glandular tubes. p. Common duct into which vasa deferentia open. p.r. Prostate. te. Testes. v.c. Nerve-cord. v.d. Vas deferens.
[572] Comparative Embryology; original edition, Vol. I. p. 318. [This edition, Vol. II. p. 385.]
[573] We have seen nothing in any of our sections which we can identify as of so-called mesenchymatous origin.
[574] This edition, Vol. II. p. 457.
[575] This edition, Vol. III. p. 352.
[576] This edition, Vol. III. p. 356.