Fig. 3 in Re-description of two marine sponge species (Demospongiae: Haplosclerida) from the coast of Karachi, Pakistan, Northern Arabian Sea

Fig. 3 — (a) Specimen of Callyspongia (Cladochalina) fibrosa (Ridley and Dendy, 1886), (b) Light microscopic image of tangential skeleton shows tufted spongin network (scale = 20 µm), (c) Light microscopic image of microtome-section showing spiculo-fibres, and (d) Scanning electron microscopic image of siliceous spicules (scale = 5 µm)