BRYOZOA OF THE PHILIPPINE REGION 559 



The species is free or incrusting. It exists only in the Pacific, but 

 it is found as far as Japan. Specimens are always rare. 

 Occurrence. — 



D. 4807. Cape Tsiuka, Sea of Japan; 41° 30' 12" N.j 140° 36' E. 

 D. 5147. Suladc Islands, Sulu Archipelago; 5° 41' 40" N.J 



120° 47' 10" E.; 21 fathoms; co. S., Sh. 

 D. 5148. Sirun Island, Sulu Archipelago; 5° 35' 40" N.j 120° 



47' 30" E.; 17 fathoms; co. S., Sh. 

 D. 5151. Sirun Island, Sulu Archipelago; 5° 24' 40" N.j 120° 

 27' 15" E.; 24 fathoms; co. S., Sh. 

 Geographic distribution. — Loyalty Islands, Torres Straits. Malasia; 

 Salomakie (Damar) Island 45 m. station 275 of the Siboga expedition, 

 275 m. Japan: Yodomi, 100-115 mm., Aburatsubo. 

 Plesiotypes.— Cat. Nos. 8385, 8386, U.S.N.M. 



LICHENOPORA WILSONI MacGillivray, 1886 



Plate 89, fig. 7 



1886. Lichenopora wilsoni MacGillivray, Descriptions of new or little known 



Polyzoa, Pt. 12, Trans, and Proe. Royal Society of Victoria, vol. 23, 

 p. 4, pi. 1, fig. 5. 

 1895. Lichenopora wilsoni MacGillivray, Monograph Tertiary Polyzoa of 

 Victoria, Trans. Royal Society Victoria, vol. 4, p. 142, pi. 11, figs. 10-11. 



Affinities. — This species differs from Lichenopora novae zelandiae 

 Busk, 1875, in the larger size of its zoarium, in its small central 

 cancelli and in the presence of central reticulations. It is a very 

 pretty species with its innumerable, little salient fascicles and its 

 numerous cancelli of the same size as the apertures. 



According to MacGillivray the ovicell is central, smooth, not 

 digitate. The zoarium must have been surrounded with a marginal 

 lamina for our specimen bears evident traces of it. 



The occurrence of this species in the Australian Miocene seems to 

 indicate a greater distribution than we know but its differentiation 

 from Lichenopora novae zelandiae is very difficult for observers are 

 little used to the study of Lichenopora. 



Occurrence. — 



D. 5151. Sirun Island, Sulu Archipelago; 5° 24' 40" N.J 120° 



27' 15" E.; 24 fathoms; co. S., Sh. 

 Australia: Port Philip Heads. 



Plesiotype.—C&t. No. 8387, U.S.N.M. 



LICHENOPORA HOLDWORTHII Busk, 1875 



Plate 88, fig. 11 



1875. Discoporella holdsworthii Busk, Catalogue Marine Polyzoa, vol. 3, Cyclosto- 

 mata, p. 33, pi. 301, fig. 4. 



1887. Lichenopora holdsworthii Waters, Bryozoa from New South Wales, 



Annals and Magazine Natural History, ser. 5, vol. 20, p. 261. 



