M I L L E P O R A. 141 



[5]. mlllepores that have internal longitudinal 

 Vessels, and send out Pores on all Sides from 



THEM. 



18. Millepora truncata. Truncated Millepore. Tab. 23 



MiUepora. caulefcens di- This Millepore has a ftem,. 



chotoma^ ramis truncatis which fubdivides into wide 

 divaricattSy poris quin- fpread, blunt branches, that 

 cuncialibus operculatis. have pores with a cover to 



each, placed in a quincunx 



order. 



Tab. 23. Fig. i — 8. 



Phil. Tranfact. Vol. 57. tab. 17. fig. 1 — 8. 

 Millepora truncata. Linn. Syft. Nat. Ed. 12. p. 1283.. 



This curious Millepore, called, by Donati, Miriozoon, 

 is well defcribed by him in the 47th volume of the Phi- 

 lofophical Transactions, where he has {hewn the polype* 

 like fuckers extending; themfelves, and fecuring them- 

 felves in their retreat by a cover to each of their cells. I 

 have further illuftrated it in the Philofophical Tranfac- 

 tions, Vol. 57. by giving a diffection of it, to fhew the 

 cells all round communicating with the longitudinal vef- 

 fels, that pafs through the center of the Coral. 



19. Millepora alcicornis, Elk's- Horn- Millepore. 



Millepora ramofafolida This Millepore is of many 



comprejja eretla polymor- fhapes ; it is- branched, folid, 

 pha, poris fparjis obfole- compreffed, and erecl,. with; 

 tis.. many obiolete pores here and. 



there on its furface. 



Millepora, 



Fic.r — 8 



