A. W. WATERS—REPORT ON THE BRYOZOA. 179 
Fig. 13. Lepralia robusta, Hincks. Mandible, x 85. From Khor Dongola. 
14, 
Do. 
do. Operculum, x 85. 
15. Lepralia ocelusa, Busk. Mandible, x 85. From Suez. 
igs. 16, 17. Schizoporella argentea, Hincks. x 85 & 25. From Khor Dongola. 
PuateE 14. 
Fig. 1. Lepralia occlusa, Busk. xX 25. From Agig Suraya (21). 
2. Do. do. >< 0) 
Do. do. Transverse section showing the lobulated glands (g/) at the 
base of the zoecium. (op) operculum, (¢s) tentacles. X 89. 
4, Do. do. Section of the duct or reservoir, x 250. 
5. Do. do. Longitudinal section through the broader axis of the zoarium, 
showing the lobulated glands (g/) and the ducts in section in 
the lowest middle zcecium, x 89. 
6. Do. do. Showing gland (gl) and reservoir (7), X 250. From Wasin, Brit. 
East Africa (501). The state of preservation of this was not 
entirely satisfactory. 
ke Do. do. Longitudinal section cut through the shorter axis, showing the 
gland (gl), reservoir (7), diaphragm (d), operculum (op). X 89. 
8. Do. do. Showing lobulated gland and the muscles by which it is attached, 
x 250. 
ig). Do. do. Longitudinal section through a lobulated gland, x 250. 
10. Lepralia eliminata, Waters. Longitudinal section showing pair of glands, Xx 85. 
alate Do. do. x 250. 
12. Cellepora caminata, Waters. Tubular ramified gland, x 250, 
13. Lepralia occlusa, Busk. Glands and ducts shown diagrammatically. 
14. Porella saccata, Busk.* The interior of a portionin which there are no polypides, 
showing the glands reduced to two small globes attached to the fleshy tissue. 
x 85. From Franz Josef Land. 
PuatE 15. 
Fig. 1. Lepralia cucullata, Busk, x 50. From Suez (2). 
2 Do. do. Section of aperture with (op) operculum open, (s/) front walls 
of zocecium, (¢) tentacles, (¢s) tentacle-sheath, (cs) compensa- 
tion sac, (k) knob on operculum. x 85. From Naples. 
3. Do. do. Aperture with operculum nearly closed. (d) diaphragm. X 85. 
From Naples. 
4, Do. do. Transverse section of a zocecium near the distal end, showing 
the larva near the base of the zocecium. X 895. 
5. Do. do. Operculum, X 85. 
6. Smittia egyptiaca, sp. nov., X 50. From Khor Dongola (19). 
ile Do. do. var. heteroopolita, nov., X 50. From Suez (14). 
8. Do. do. Operculum, x 85. 
9. Do. do. Dorsal surface, showing the zocecia in biserial rows, X about 10. 
10. Lepralia cucullata, Busk. Commencement of glands growing on the operculum, 
xX 250. From Suez. 
* This also shows the avicularian chamber, in which there are two very long muscles, and 
at the base there are the two characteristic pores. It would seem as if the avicularian 
chamber could take the place of a compensation-sac. 
LINN. 
JOURN.—ZOOLOGY, VOL. XXXI. 14 
