2 Hickson, on Ampulla in Specimens of Millepora. 



Millcpora Murrayi, showed any signs of possessing 

 medusae or ampullae.* 



Quelch, moreover, gives no account of any ampullae 

 in any species he describes except M. Murrayi. 



When searching through the collection of Milleporas 

 in the Manchester Museum I came across a single 

 branch of a coral labelled M. Schrammi, which resembles 

 very closely the figure of the specimen of this name 

 given by Duchassaing and Michelotti. 



Unfortunately the specimen has no history, and I 

 cannot tell where it came from. Michelotti's descrip- 

 tion of the M. Schrammi, from the Antilles, is very 

 imperfect, and it is quite impossible to determine with 

 any degree of certainty whether the specimen in the 

 Museum really belongs to this species or not ; but it is 

 very different indeed in form from M. Murrayi, and could 

 not possibly, under our present system of classifying 

 species of these forms, be included in Quelch' s new 

 species. 



Now, the specimen shows clearly several scars of 

 ampullae, some in clusters, some quite irregularly 

 scattered. 



In another specimen of Millepora without history, 

 which is very much broken and dusty, several areas are 

 covered with the scars of ampullae. 



The discovery of the ampullae on these fragments led 

 me to examine very carefully the larger and more perfect 

 specimens in the Museum, and I was delighted to find 

 that one which is labelled Millepora alcicornis, and another 

 labelled Millepora complanata, exhibit these cavities in large 

 numbers on some of their branches. 



* Note. — Since the above was written I have examined a number of 

 specimens in the British Museum and the Museum of Natural History at 

 Liverpool, and I have noticed several ampulla-bearing specimens^ other 

 than those belonging to the species M. Murrayi. — January 28th, 1897. 



