Prof. H. Boschma, director of the Rijksmuseum van Natuurlijke Historie, sent me some Balanids associated with Millepora platyphylla Hemprich & Ehrenberg, partly preserved in formalin, partly in a dry state. The material was collected by the Snellius Expedition in 1930, the data concerning the present material are (Boschma, 1936, p. 19): "April 23-27. Obi latoe, northwest of Obi major (22). Most of the collecting was done on the reef of the small island Poeloe Toesa at the east side of Obi latoe. This is a highly varied reef with a great number of species of corals. A peculiar phenomenon observed here was the occurrence of multitudes of small brown flatworms on colonies of Merulina and Montipora, which covered the greater part of the surface of these... |