296 POLYZOA INFUXDIBULATA. 



Pall. Elench. 254. Ellis and Soland. Zooph. 135. Jameson in Wem. Mem. i. 

 560. ,Sfc?i'. Elem. ii. 428. — Flustra bullata ? Ellis a.-aA Soland. Zoo'^\i.\Q. Stew. 

 Elem. ii. 436. 



Hah. — Found on the stems of various corallines, on stones, and on 

 the roots of Fuci, common. 



The cells, by their conglomeration, form a porous friable calcareous 

 mass, encrusting submarine bodies, rarely exceeding an inch in 

 length, usually round when small, more or less oblong and knobbed 

 when large. It is rough, when quite recent of a pinkish colour, 

 dirty-white when dry, rarely tinted with purple. The aperture of 

 the cells is often toothless, but in a perfect condition a short mucro 

 projects from the superior margin, and often a lesser one on each 

 side. — Linnaeus' description under C. pumicosa is scarcely applicable, 

 but his quotation of Ellis's figure determines the species he had in 

 view. There can be little doubt that his C. verrucosa — " cellulis 

 suhrotundo-glovieratis ovatis ore suhtridentato" belongs to the same 

 species, as Olivi rightly supposed, although Blainville considers it 

 synonymous with the Discopora verrucosa of Lamarck. 



The Madrepora verritcaria of Esper's Madrep. tab. 17, fig. c, C, 

 and b, B, is Cellepora pumicosa in an early state. 



2. C. RAMULosA, dicJiotomousli/ hranched^ the hranclies cylin- 

 drical., rough ; cells irregularly clustered, toith a tnucro on the 

 outer edge of the aperture. Pallas. 



Plate LII. Fig. 4, 5. 



Cellepora ramulosa, Liii. Sj'st. 1285. Mull, Zool. Dan. prod. 253. Flcm. Brit. 

 Anim. 532. Johnston in Trans. Newc. Soc. ii. 267, pi. 12, fig. 3, 4. Lam. Anira. 

 s. Vert. 2de edit. ii. 258. Thompson in Ann. and IMag. Nat. Hist, vii, 481. 

 Hassall in Ibid, vii, 367. Cotich Zooph. Cornw. 49 : Corn. Faun. iii. 110, pi. 20. 

 fig. 2. Macgillivray in Ann. and M;ig. N. Hist. ix. 467. 



Hah. — In deep water attached to old shells. 



Polypidom attached by a spreading base, calcareous, white, light and 

 porous, rising to the height of between two and three inches, branched 

 from the base, the branches bifid, spreading, cylindrical, the ultimate 

 ones a little attenuated at the apex, very rough with the mucronate 

 cells, which are urceolate, without any very regular arrangement, the 

 aperture contracted, the mucro about as long as its diameter. — 

 Pallas (Elench. 255,) and Ellis (Soland. Zooph, 13G,) considered this 

 a variety of the proceeding. — The polypes are of a faint red or 

 flesh-colour, with two darker spots indicating the position of the 

 stomach and ovary ; tentacula numerous, filiform. 



