532 ZOOPHYTA. ESCHARADtE. Cellepor, 



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Gen. LI I. CELLEPORA. — Cells agglomerated, presenting 

 various forms. 



127. C. pumicosa. — Substance loosely cellular, the cells or- 

 bicular, the mouth round, with a produced marginal process. 



Eschara millepora lapidea, instar pumicis porosa, Ellis, Coral. 75, t. xxx. 

 f. D. — Millepora pumicosa, Pallas, El. 254 — Flustra bullota, Sol. Ellis 

 Zooph. 16. — Investing the stems of fuci. 



When young the cells are remarkable for their rounded form, but they be- 

 come less regular as they multiply gemmiparously, and are piled upon one 

 another without order, when the mass bears a very close resemblance to pu- 

 mice-stone. 



128. C. cervicomis. — Branched, compressed, rough, mouths 



of the cells slightly marginated, with a blunt process on the 



upper side. 



Porus cervinus Imperati, Borl. Corn. 240, t. xxiv. f. 7- — Millepora cerv. 

 Pall. 252 — M. compressa, Sower. Brit. Misc. t. lxi — In deep water, 

 not rare. 



Stem rising to the height of several inches, dichotomously divided, the 

 branches spreading ; rough, with the half formed cells ; the extremities of 

 the branches are compressed, even, and thin, consisting of a single layer of 

 cells on each side regularly placed. In this state it accords with the Mille- 

 pora Skenii of Sol. Ellis, Zooph. 135. It afterwards increases irregularly in 

 thickness, becoming rounder. It is of a pale brownish colour, and looks 

 sometimes as if varnished. 



129. C. palmata. — Base round, suddenly expanding on each 

 side into a compressed, slightly divided, head, the cells with a 

 tooth on the proximal margin. 



A single specimen from deep water, Zetland. 



Height about half an inch, breadth an inch, stem about two-tenths ; rough, 

 the little branches are short and truncated ; the orifices of the cells are de- 

 clining, and nearly concealed by the spinous processes, which are rather long, 

 and give the surface a muricated aspect; the substance is somewhat compact- 



130. C. luev'is. — Dichotomously branched, cylindrical, the 

 pores wide, with simple mouths. 



A single specimen from deep water, Zetland. 

 Height an inch and a quarter, diameter one-tenth ; the branches are 

 smooth, with the orifices of the cells smooth and concave ; towards the ex- 

 tremities the branches are rough with the forming cells, and the orifices are 

 more declining, circumscribed, a little prominent, with a blunt process at the 

 proximal margin. 



131. C. ramulosa. — Dichotomously branched, the branches 

 round and confluent ; cells prominent, with a produced spinous 

 process on the proximal margin, 



Linn. Syst. i. 1285 Millepora pumicosa var. Sol. Ellis, Zooph. 136. 



Cordiner's Ruins, No. xiv. — In deep water, not rare. 

 Height of the largest specimen in my possession about an inch and a half, 

 the thickness of the branches scarcely a line, and their length less than hall 



