534 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



other. According to Gregory, 1899, this is a variety of Proboscina 

 fasciculata Reuss, 1846, a fossil species widely distributed in the 

 European Cretaceous. 

 Occurrence. — 



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



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

 D. 5179. Romblon Light, Romblon; 12° 38' 15" N.; 122° 12' 

 30" E.;37 fathoms; hrd. S. 

 Cotypes — Cat. Nos. 8355, 8356, U.S.N.M. 



Family DIAPEROECIIDAE Canu, 1918 



Genus DIAPEROECIA Canu, 1918 



The distinction between Diaperoecia and Tubulipora without 

 fascicles and with subsymmetric (nondigitate) ovicells is often made 

 with great difficulty. In Diaperoecia, the oeciostome is isolated, 

 orthogonal (opening in a different direction from the tubes), sub- 

 median or sublateral, never terminal ; the tubes which pierce the ovi- 

 cell are always isolated even if the colony is fasciculated. In Tubuii- 

 pora the oeciostome is more or less long opening in the same direction 

 as the other peristomes, always adjacent to a tube; in the fasciculate 

 Tubuliporas the fascicles persist in traversing the ovicell. 



DIAPEROECIA INTRICARIA Busk, 1875 



Plate 80, figs. 1, 2 



1875. Pustulopora intricaria Busk, Catalogue Marine Polyzoa, vol. 3, p. 22 



pi. 10, figs. 1-4. 

 1879. Pustulopora intricaria Haswell, Cyclostomatous Polyzoa of Port Jackson, 



Proc. Linnean Society New South Wales, vol. 4, p. 352. 



1914. Entalophora intricaria Waters, Marine fauna British East Africa, Proc. 



Zoological Society London, p. 842. 



1915. Entalophora intricaria Harmer, The Polyzoa of the Siboga Expedition, 



pt. 1, p. 112, pi. 10, figs. 13, 14. 



Measurements. — Diameter of peristome, 0.14-0.16 mm.; distance 

 of peristomes, 0.70-0.90; separation of peristomes, 0.56-0.70. 



Variations. — Our specimens are similar to those of the Siboga 

 expedition figured by Harmer, 1915. Some branches seemingly have 

 their summit enlarged as on Busk's figure but they are more slender 

 and less robust. The ovicell which we figure is not as beautiful as 

 the one illustrated by Harmer, but it is sufficient to show that we are 

 not mistaken in our determination. 

 Occurrence . — 



D. 5147. Sulade Island, Sulu Archipelago; 5° 41' 40" N.; 120° 



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

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

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



