355 



they have here a similar position as on the specimen figured by Busk. On 

 a colony taken from Manicina areolata (without locality) the avicularia have a 

 similar form but are directed obliquely proximally and inwards. 



The colonies form crusts on corals, on Tridacna sp. and on a sponge. 



St. Thomas, Singapore (Schytt, S. Gad). 



