Stat. 142. Anchorage off Laiwui, coast of Obi Major. Depth 23 meter. 2 ex. 



Stat. 154. o°7'.2N., I30°25'.5E. North of Waigeu. Depth 83 meter. 1 ex. 



Stat. 162. Between Loslos and Broken-islands, West-coast of Salawatti. Depth 18 meter. 1 ex. 



Stat. 164. i°42'.5 S., I30°47'.5 E. Arafura-sea. Depth 32 meter. 4 ex. 



Stat. 240. Banda. Depth from 9 to 45 meter. 2 ex. 



Stat. 303. Haingsisi, Samau-island. Depth up to 36 meter. 1 ex. 



Stat. 310. 8° 30' S., iiq°7'.5E. Sapeh-strait. Depth j$ meter. 1 ex. 



Bouvier gives a good description of the specimen of Milne-Edwards and Haime and 

 also a good figure. The Heteropsammia rotundata of Semper agrees in all respects with this 

 description. The "pali" mentioned by Semper are clearly visible in some specimens, in others 

 they are less developed, and are sometimes wanting altogether. Also I could not find any 

 difference with the Heteropsammia aphrodes of Alcock. The base is in some specimens as 

 long as the calicle, in other specimens it is a little longer. 



3. Heteropsammia geminata Verrill. 



Heteropsammia geminata Verrill 1S70. 

 Lobopsammia Michelini Tenison-Woods 1879? 

 Heteropsammia multilobata Moseley 1881. 

 Heteropsammia geminata Alcock 1893. 



Stat. 90. I°I7'.sN., u8°53'E. East of Borneo. Depth 281 meter. 6 ex. 

 Stat. 240. Banda. Depth from 9 to 45 meter. 1 ex. 



According to Tenison-Woods the Heteropsammia michelini is often compound; he had 

 every gradation from the oval calicle passing to the figure of 8-outline until it is finally separ- 

 ated by fissiparity. I examined several hundreds of specimens of Heteropsammia michelini and 

 found one in which the septa of both sides touch and only one in which the separation in two 

 calicles is complete. This latter too is an obvious H . michelini. In this species of Verrill and 

 Moseley separation is the rule; small specimens (7 mm. long) already have the margin of the 

 calicle irregularly curved, indicating in this way the beginning of the formation of new calicles 

 by fissiparity. This phenomenon seems to be a very rare exception in H. michelini. I think 

 that Tenison-Woods had these two species mixed together. 



The Heteropsammia multilobata Moseley is undoubtedly synonymous with the H. geminata 

 of Verrill. Verrill seems to have examined only young specimens. He says: the corallites 

 are but little elevated. That is the case in my small specimens. The two biggest specimens 

 have the corallites elevated a few millimeters above the common base, agreeing in this respect 

 with the description of Moseley. And that is the only difference between the species of Verrill 

 and Moseley. 



4. Heteropsammia spec. 



Stat. 2. Madura-strait. Depth 56 meter. 1 ex. 



Stat. 116. West of Kwandang-bay-entrance. Depth 72 meter. 2 ex. 



Stat. 153. o°3'.8N.j I30°24'.3E. North of Waigeu. Depth 141 meter. 1 ex. 



These specimens are very young or much damaged. That of Stat. 153 may be a 



Heteropsammia michelini. 



119 



