Subgenus EUNAPIUS (p. [86]).
8. Spongilla carteri (p. [87]).
Specimens were taken in Bhim Tal (alt. 4450 feet) and Sat Tal (alt. 4500 feet). Some of them approach the variety cava in structure.
Subgenus STRATOSPONGILLA (p. [100]).
12. Spongilla bombayensis (p. [102]).
Add a new variety:—
13 a. Var. pneumatica, nov.
This variety differs from the typical form in the following characters:—
(i.) The sponge forms a flat layer of a pale brownish colour as a rule with short and very delicate vertical branches.In one specimen it takes the form of an elegant cup attached, only at the base, to a slender twig.
(ii.) The gemmules are covered, outside the spicules, by a thick pneumatic coat of irregular formation and with comparatively large air-spaces.