Davenport. — Budding in Bryozoa, 
PLATE IX. 
ABBREVIATIONS. 
An. Anal side of polypide. lu. gm. Lumen of bud. 
atr. Atrium. marg. Margin of corm. 
can. cre. Ring canal. ms’drm. Mesoderm. 
cev. pyd. Neck of the polypide. n. Circumosophageal nerve. 
cta. Cuticula. æ. (Esophagus. 
ec’drm. Ectoderm. Or. Oral side of polypide. 
ex, Outer layer of bud. Th Rectum. 
ga. Stomach. sep. Wall of zocecium in the corm. 
gm Bud. sol. Sole of the corm. 
gn. Ganglion. tet, Roof of the corm. 
i. Inner layer of bud. 
Fig. 72. Longitudinal vertical section through the peripheral part of the corm of 
Lepralia Pallasiana, showing the margin of the corm and two zoœcia, 
the olđer of which contains a polypide. X 160. 
Fig. 73. Longitudinal vertical section through the margin of a corm of Lepralia 
Pallasiana, showing the two layers of this region and the origin of the 
polypide. X 410. 
Fig. 74. Young regenerating polypide of Flustrella hispida. The section passes 
through the sagittal plane. X 380. 
Fig. 75. Vertical section through margin of corm of Flustrella hispida, to show 
origin of polypide. x 410. 
Fig. 76. Sagittal section through young polypide of Flustrella hispida, to show 
early stage of development of alimentary tract. X 410. 
Fig. 77. Superficial view of young polypide from upper surface of corm of Flus- 
trella hispida, showing young tentacles and their relation to the anus 
(at atr.). X 820. 
Fig. 78. Bud of polypide of Flustrella hispida at the time of closure of the pore of 
invagination. >< 390. 
Fig. 79. Radial section through margin of corm of /lustrella hispida, showing bud 
of polypide. X 410. 
Fig. 80. Young polypide of Flustrella hispida. : X 380. 
Fig. 81. Bud of Lepralia Pallasiana immediately before the formation of alimen- 
tary tract, showing relation of the rectal pocket (rt.) to the atrio- 
pharyngeal cavity above. X 410. 
Fig. 82. Section through polypide, through lately formed brain and circum- 
wsophageal nerves (n) growing around osophagus (œ.). 410. 
