j 3 6 M I L L E P O R A. 



lulis fub glob oft s mucronatis rough, and compofed of fharp- 

 compojita. pointed roundifh cells. 



Porous Efchara. Ellis Corallin. pag. 75. tab. 27. 

 fig. f. F. 



This Millepore is often found incrufting many of the 

 Sertularias in fmall irregular maffes ; when they are 

 thrown on more, the points of their cells are worn 

 off. 



I have lately received a fpecimen from Aberdeen, with 

 compleat cells, that feems to be of this fpecies. It has 

 fmall cylindrical branches, each about halt an inch long: 

 the cells are placed round about in an alternate order ; 

 they are fhaped like a helmet or head-piece jufr. opening, 

 with a hole in the middle ; the under part is pointed, and 

 projects like the lower part of a bird's beak ; and at the 

 bottom of each of the cells is a hole, which feems to be- 

 long to one of the cells that is covered by the lafl feries. 



11. Millepora tubulofa. "Tubular Millepore. 



Mi\\epora.para/?tica,cel-' This paralitica 1 Millepore 



lulls tubulifoi-mibus ferie- has fmall tubular cells dif- 

 bus tranfverfe difpofitis. pofed in rows acrofs. 



Small Purple Ej char a. Ellis Corallin. pag. 74. tab. 27. 

 fig. e. E. 



This little purplifh Millepore is frequently found creep- 

 ing up the Sickle Coralline (Sertularia falcata) which it 

 adheres to, and furrounds with many united rows of little 

 parallel tubes. Thefe rows are frequently feparated into 

 narrow divisions, which bend a little back, and appear 

 like fo many fmall combs. Thefe maffes are found about 

 half an inch, feldom above three quarters of an inch dia- 

 meter. 



