DESCRIPTION OF SPECIES. 



Order I. STOLONIFERA, Hickson. 

 Family Tubipobid.e. 



GENUS TUBIPORA, Linnfeus. 

 Tubipora chamissonis, Ehrenberg. 



It is a matter of considerable difficulty to refer a specimen of this 

 genus to any one of the described species owing to the fact that the specific 

 characters given for many are far from constant. We refer a single si>ecinien 

 in this collection to Ehrenberg's original species { = T. musira, Cham.). 



It is a large fragment, 105 mm. in length and 30 mm. in breadth, of a 

 bright coral-red colour. The diameter of the zooid-tubes is far from uniform, 

 but 2'25 mm. is an average measurement. The tubes are separated by inter- 

 vals of lo mm. The lamelhe are about 1 mm. in thickness and are from 2 to 

 3'25 mm. apart. 



Locality : N. Maldive Atoll. 



Previously recorded frojn N. Maldive Atoll, Zanzibar, Red Sea, New 

 Britain, etc. 



