PLATE V. 



Fig. 54. — Cross section of caudal lobe in it's posterior half, ca. 62 hours. 

 X 360. 



Fig. 55. — Portion of cross section through third or fourth pair of thoracal 

 lihibs, ca. 62 hours. X 360. 



Figs. 50 A, B. — Median section of posterior region of embryo of ca. 62 

 hours, the posterior end of the caudal lobe represented in B continuous with 

 the right end of the portion of the section of A. x 360. 



Fig. 56 C. — Median section of cephalic region of the embryo shown in Figs. 

 56 A, B. X 360. 



Fig. 56 D.— Longitudinal section of pedipalp of the same embryo. X 360. 



Fig. 57. — Lateral surface view, 73 hours, x CO. 



Fig. 58. — Oblique dorso-lateral view, ca. 75 hours, x ^^■ 



Fig. 59. — Oblique antero-lateral surface view, ca. 75 hours, x ^0. 



Fig. 60 A. — Longitudinal section of the region where cephalic and caudal 

 lobes meet, 73 hours. X 360. 



Fig. 60 B.— Longitudinal section of portion of head lobe, chelicerou and 

 pedipalp, of the same embryo. X 360. 



Fig. 61.— Cross section of a little more than one-half of an abdominal seg- 

 ment, ca. 75 hours. X 360. 



Fig. 62. — Portion of cross section of thorax, showing one limb and its 

 ganglion, ca. 75 hours. X 360. 



Fig. 63. — Lateral surface view, ca. 80i^ hours, x 60. 



Fig. 64. — Oblique dorso-anterior surface view, ca. 86 1^ hours, x 60. 



Fig. 65. — Oblique ventral surface view of cephalothorax, ca. 86^2 hours. 

 X CO. 



Fig. 66. — Ventral view of abdomen, ca. S6i^ hours, x GO. 



