| Fig. 1. | Part of a large specimen of S. (Eunapius) carteri from Calcutta, to show the conspicuous rounded oscula (reduced). |
| Fig. 2. | Gemmules of S. (Stratospongilla) bombayensis on a stone from the edge of Igatpuri Lake, Bombay Presidency (nat. size). |
| Fig. 3. | Part of one of the type-specimens of S. (Stratospongilla) ultima from Cape Comorin, Travancore, to show the star-shaped oscula (slightly enlarged). |
| Fig. 4. | Part of the type specimen of T. vesparioides (external membrane destroyed), to show the reticulate skeleton and the numerous gemmules (nat. size). |
| Fig. 5. | Part of a schizotype of C. burmanica to show the elevated oscula (nat. size). |
Spongilla, Tubella, Corvospongilla.
[PLATE III.]
Photographs of specimens of Plumatella, Lophopodella, and Pectinatella.
| Fig. 1. | Specimen in spirit of P. fruticosa (typical form) on the leaf of a bulrush from a pond in the Calcutta Zoological Gardens (nat. size). |
| Fig. 2. | A small zoarium of the benedeni phase of P. emarginata from Rangoon (nat. size). Part of the mass has been removed at one end to show the structure. The specimen was preserved in spirit. |
| Fig. 3. | Part of a large zoarium of P. diffusa on a log of wood from Gangtok, Sikhim (nat. size). An enlarged figure of another part of the same specimen is given in fig. 2, Pl. IV. The specimen was preserved in spirit. |
| Figs. 4, 4 a. | Specimens of L. carteri from Igatpuri Lake, Bombay, preserved in formalin. Fig. 4 represents a mass of polyparia surrounded by a green gelatinous alga on the stem of a water-plant; fig. 4a an isolated polyparium with the polypides fully expanded from the under surface of a stone in the same lake. Both figures are of natural size. |
| Fig. 5. | Part of a compound colony of P. burmanica on the stem of a reed from the Sur Lake, Orissa (nat. size, preserved in formalin). |
Plumatella, Lophopodella, Pectinatella.
[PLATE IV.]
Specimens of Plumatella.