256 ARTHUR DENDY. 



pavement cells from the lining of an inhalant canal. Drawn under Zeiss F, 

 ocular 2. 



Fig. 80, — Grantessa intusarticulata. Portion of the wall of a radial 

 chamber looked down upon, showing a number of contracted collared cells, and 

 between them a prosopyle, with the nucleus of an ectodermal pavement cell 

 on its margin seen at a slightly higher focus than the collared cells. Drawn 

 under Zeiss F, ocular 2. 



Fig. 31. — Vosmaeropsis macera. Exhalaut opening of a flagellated 

 chamber, surrounded by the membranous chamber diaphragm containing 

 muscle-cells. Drawn under Zeiss F, ocular 2. 



Fig. 32. — Leucandra sp. Small portion of a vertical section through the 

 region of the osculum, showing four of the blister-like epithelial cells which 

 line the gastral cavity in this region. Drawn under Zeiss F, ocular 2. 



Fig. 33. — Leucandra echinata, var. An amoeboid cell from the meso- 

 derm. Drawn under Zeiss F, ocular 2. 



Fig. 34. — Leucandra echinata (?). An ovum from a cavity in the 

 mesoderm. Drawn under Zeiss F, ocular 2, 



Fig. 35. — Ute syconoides. Section across an inhalant canal (inter- 

 canal), showing an ovum suspended from its wall. Drawn under Zeiss F, 

 ocular 2. 



Fig. 36. — Ute syconoides. An ovum from behind the wall of a radial 

 chamber. Drawn under Zeiss F, ocular 2. 



Fig. 37. — Ute syconoides. Two vesicular cells from beneath the epi- 

 thelium of the gastral cortex. Drawn under Zeiss F, ocular 2. 



Fig. 38. — Grantessa intusarticulata. Section of an embryo lying in 

 a cavity lined by epithelial cells (the embryo capsule). Drawn under Zeiss F, 

 ocular 2. 



Figs. 39 — 42. — Leucandra phillipensis. Stellate mesoderm-cells from 

 the dermal cortex. Drawn under Zeiss F, ocular 2. 



Fig. 43. — Leucandra phillipensis. Subdermal gland-cell beneath the 

 wall of an inhalant canal, which is cut through on the right. Drawn under 

 Zeiss F, ocular 2. 



Figs. 44 — 47. — Leucandra phillipensis. Portions of four oxeote 

 spicules from the dermal cortex, with calcoblasts attached. Drawn under 

 Zeiss F, ocular 2. 



Figs. 48 — 50. — Leucandra phillipensis. Amoeboid cells from the 

 mesoderm between the flagellated chambers. The one shown in Fig. 50 

 appears to be feeding by means of pseudopodia upon the collared cells of a 

 flagellated chamber. Drawn under Zeiss F, ocular 2. 



Fig, 51. — L eucandra phillipensis. A group of retracted collared cells. 

 Drawn under Zeiss F, ocular 2. 



