103 



SNAKE CORALLINE. A. Spatulala. PI. xix., Hg. 2. 



Snake Coralline, Ellis' Coral., p. 43, do. 11, pi. 22, fig. 

 c C D. Cellaria anguina, Ellis and Solander's Zooph., p. 26. 

 Sertularia anguina, Turton's Lin., vol. 4, p. 686*. Stewart's 

 Elem., vol. 2, p. 449. Cellaria anguina, Tenipleton in Mag. 

 Nat. Hist., vol. 0, p. 46G. Anguinaria anguina, Fleming's 

 Brit. An., p. 542. Anguinaria spatulala, Johnston's Brit. 

 Zooph., p. 206, pi. 31, figs. 7 and 8. 



Hab. On shells occasionally, but more frequently on the 

 smaller sea-weed. Polperro, Talland sand bay, Looe island, 

 Mevagissey bay, &c. 



Creeping; cells arising from a creeping fibrile, erect, free, 

 and calcareous; they resemble spoons which have the bowl 

 bent with the concave portion towards the handle. That 

 part of the creeping fibre from which the cells arise, is 

 enlarged and bulbous ; under the microscope the cells appear 

 to be circularly striated, as it is figured by Ellis. The en- 

 larged and bent heads of the cells are dotted, and frequently 

 infested with minute Confervas. The apertures arc sub- 

 terminal, inferior, and ovoid. When dead it is of a pure 

 white colour, when living of a delicate pink. This minute 

 species, though not abundant is common, especially in the 

 latter part of Summer and Autumn. 



TUBULIPORID^. 



Polypidoms calcareous, or membrano-calcareous, variable 

 in shape but never confervoid ; cells tubular, rising from a base 

 and projecting; the apertures terminal and non-operculate. 



TUBULIPORA. Lamarck. 

 Generic Character : Polypidoms attached by a partial or 



entire adhesion of the base, sometimes crustaceous ; cells 



placed on a calcareous basis, arranged in rows, long and 



cylindrical, separate with an erect aperture. Polypes 



ascidian. 

 WART-LIKE CORALLINE. T. Patina. Centre cupped, 



circumference plain, midway between raised, and bearing 



erect tubes with round unarmed apertures. 



Millepora verrucaria, Ellis and Solauder's Zooph., p. 137. 

 no. 13. Madrepora verrucaria, Tui ton's Lin,, vol. 4, p. 616". 

 Stewart's Elem., vol.2, p. 426. Discopora verrucaria, Flem. 

 Brit. An., p. 530. Tubulipora patina, Johnston's Brit. 

 Zooph., p. 267, pi. 30, figs. 1, 2, and 3. 



Hab. On the Pinna ingens, stones, corallines, and dead- 

 man's hands, from deep water, common. 



This small wart-like species is liable to many variations 

 of form arising from the dilierenl devclopemcnt of its various 



