“Esperella lapidiformis, n. sp.
Massive, sessile, boulder-like (size 5 ¼ - by 3 ½ by 2 ¾ inches). Soft but fibrous, minutely hispid. Vents numerous wide tubular processes, confined to the summit. Spicules : — (1) acuate, tending to spinulate, rather sharp-pointed, size •9 by •02; (2) large palmate inequianchorate, with three strong teeth at each end, size •094 millim. long.
Locality. Station 320, off Rio de la Plata, 600 fath.”
(Ridley and Dendy, 1886)
