T U B I P O R A. 143 



This Coral grows in immenfe maffes in the Eaft-Indian 

 Ocean ; it is now and then brought us from Prince's 

 Ifland, in the Straits of Sunda. The lamins, or plates, 

 are generally half an inch thick, and full of minute pores 

 between the cellular ftarry ceils, which both pafs from 

 each furface to the central longitudinal veffels in nearly a 

 perpendicular direction, and with which they are united. 

 The furface of this Coral, when magnified, is full of lit- 

 tle fharp points between the fmall pores and round the 

 larger ; and when we examine the larger ftellated pores, 

 we find them furrowed on the infide to the bottom, 

 which makes a proper tranfition from this genus to the 

 Madrepores. 



XIII. TUBIPORA. PIPE CORAL. 



Animal i7icognitum. The animal of the Pipe Co- 



ral is unknown. 

 Stirps lapidea [Coral- . The ftem is ftony (that is 

 Hum) dijfepimentis tranf- coral) with tranfverfe parti- 

 verfts, tubulos perpendicu- tions, uniting together the 

 lares conne&entib'ui. perpendicular tubes. 



Tubuli articulate in- Thefe tubes are jointed, 



vicem communicant es^ ft- communicating with one an- 

 phunculis continuis genicu- other by means of geniculated 

 Satis, ad genicula radiatis. pipes, which pafs through 



each of them, and are radiated 

 at their joints. 



1. Tubipora 



