TUBULIPORID.E : PUSTULIPORA. 279 



PLATE XLVIII. FIG. 4, 4. 

 Pustulipora proboscidea, M. Edwards Mem. 27, pi. 12, fig. 2. 



Hal Zetland seas, E. Forbes. 



Polypidom calcareous, erect, about half an inch in height, smooth, 

 white, branched, the branches cylindrical, slender, alternate, erecto- 

 patent, pointed ; cells nearly immersed with everted free tubular 

 extremities, alternate, four completing a whorl, the aperture with-a 

 slight mucro on the outer edge. 



2. P. DEFLEXA, "polypidom erect, cylindrical, with waved 

 tubes projecting from all parts" R. Q. Couch. 



PLATE XLVIII. FIG. 5, 5. 



Tubulipora deflexa, Couch Zooph. Cornw. 46 : Corn. Faun. iii. 107, pi. 1 9, fig. 4. 



Hah. "On shells from deep water, common. Polperro, Meva- 

 gissey Bay, and off the Deadman Point," R. Q. Couch. Plymouth, 

 J. C. Bellamy. 



" This species is very common ; it varies in height from one 

 quarter to half an inch. It is calcareous, white, cylindrical, with 

 sometimes an enlarged globular head. The tubes are from all parts 

 of the polypidom, and greatly project in a waved form ; they are 

 shorter above than below, and their apertures are even and unarmed. 

 The base is slightly spreading and of a darker colour than the upper 

 portions." R. Q. Couch. 



I have specimens of this from Mr. Couch and Mr. Bellamy. 

 Some are simple and some are divided once bifidly, and one is of a 

 horn colour. It is of rather a friable texture, and the entire surface 

 is frosted or closely speckled with minute granules. The cells are 

 numerous and irregular, and their free part varies considerably in 

 length. 



I am tempted to ask whether this may not be a state of Tubu- 

 lipora serpens ? The latter is happily named, at least in the poetical 

 sense, for it seems to have beguiled us to make not less than four 

 species out of its guises : 



" himself now one, 

 Now other, as their shape serv'd best his end." 



