60 THE SPONGES OF THE WEST-CENTRAL PACIFIC 



Topsent, 1892, page xviii, described Chalina zostericola from the Mediter- 

 ranean. Its spicules were oxeas, its form vague, and its color brown, al- 

 though in other respects it was something like koremella. Dendy, 1895, page 

 244, described Chalina viridis from the Australian region. This was dark 

 green, but its spicules much thicker and shorter, and it had a very peculiar 

 structure of canals and very different habitus. 



De Laubenfels, 1936, page 42, transferred Amphimedon viridis Duchas- 

 saing and Michelotti, 1864, page 81, into Haliclona. Consequently, a new 

 name must be found for Chalina viridis of Dendy, and it is proposed here 

 that it be viridola. 



There is another case of a need for a new name in the genus Haliclona. 

 Thiele, 1905, page 477, described Acervochalina variabilis, which was trans- 

 ferred to Haliclona by Burton, 1932, page 265. This name was preoccupied 

 by Pachychalina variabilis Dendy, 1890, page 353, which was transferred to 

 Haliclona by de Laubenfels, 1936, page 39. It is proposed here that variabilis 

 of Thiele be known henceforth as variabola. Neither of these two latter spe- 

 cies are closely related to koremella, which is well set apart by its strongylote 

 megascleres, in connection with the numerous other points of difference 

 enumerated. Some very curious comparisons, however, may be made between 

 koremella and the following species or korema. 



The species' name is a diminutive of the name korema. 



Haliclona korema, new 



Text Figure No. 35 



This species is here represented by the following : 



U.S.N.M. No. 23132, My No. M. 515, here designated as type, collected Sep- 

 tember 6, 1949, by using a fish spear in Iwayama Bay near Ulebsechel 

 Island in the Palaus. The depth was less than 2 meters, and the sub- 

 strate was dead coral. 



U.S.N.M. No. 22797, My No. N. 002, collected April 25, 1946, by J. P. E. 

 Morrison at Bikini Atoll near the east end of the lagoon, 7 kilometers 

 south of the west end of Bikini Islet. This was done by dredging from 

 a depth of 50 meters. Substrate was not mentioned. 



U.S.N.M. No. 22801, My No. N. 006, collected at the same time and place 

 as the preceding. 



U.S.N.M., No. 22825, My No. N. 032, collected July 11, 1946, by J. P. E. 

 Morrison at Bikini Atoll near the east end of the lagoon. This was done 

 by dredging from a depth of 50 meters. 



The shape is like that of koremella, with a small base from which 

 numerous upright branches arise. Each of these is about 2 mm in diameter 

 and 5 cm high, and only a few of them branch at all after leaving the focal 

 point or base. 



