. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 190 Mr. S. O. Ridley's Contrihutions to tlie space; more thickly towards the terminations of the twigs, where they are almost or quite in contact at their bases; distribution approximately alternate ; prominent, cylindrical, blunt; length of verruca? of terminal twigs "7 to "75 millim., breadth '75 millim., those of the larger branches somewhat smaller. Spicules of general cortex :—(i.) fig. 1, A, linear, the shaft cylindrical, tapering more or less towards one end,
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 190 Mr. S. O. Ridley's Contrihutions to tlie space; more thickly towards the terminations of the twigs, where they are almost or quite in contact at their bases; distribution approximately alternate ; prominent, cylindrical, blunt; length of verruca? of terminal twigs "7 to "75 millim., breadth '75 millim., those of the larger branches somewhat smaller. Spicules of general cortex :—(i.) fig. 1, A, linear, the shaft cylindrical, tapering more or less towards one end, the thicker two thirds bearing scattered, rather distant, prominent verru- Fig. 1.— Villogorfiia A. Fusiform spicule of cortex, X 00 diam. B. Fusiform spicule of ver- ruca?, X 90 diam. C. Diftereut forms of octoradiate spicule of cortex, X 100 diam, ciform tubercles, roughened at their free ends, size '35 by •053 millim. ; (ii.) fig. 1, C, quadriradiate stellates, generally with a somewhat elongate body, almost smooth, from which two pairs of radii are given off in one plane at an angle of from 90° to 135° with one another, and two pairs of similar tubercles on opposite sides of the body, in a plane at right angles to that of the other two pairs, the radii blunt or sub- acute, bearing some large rough tubercles, or with the body developed at the expense of the rays, which then form merely lateral angles of a short barrel- or capstan-shaped shaft; size '14 by '035 millim. Sijicules of verruca? of one kind only, viz. (iii.) fig. 1, B, the same as no. i., but rather longer and with more numerous tubercles, size '39 by "053 millim. Colour, dirty black on main branches, wainscot- brown on terminal branches. Hah. Mauritius, 80 fathoms (coll. Mus. Brit.). Ohs. The single specimen which represents this species was recently obtained from Mr. V. de Robillard in the diy condi- tion. It is of remarkable size, viz. height 32 inches (800 millim.), maximum breadth
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