BRYOZOA OF THE PHILIPPINE REGION 355 



1902. Tubucellaria opuntioides Calvet, Bryozoaires marins de cotes de Corse, 



Travaux Institut dc Zoologie Universite* Montpelier, ser. 2, m6m. no. 



12, p. 11. 

 1904. Cellaria cereoides Neviani, Appunti sui Briozoi del Mediterraneo, 2, 



Bolletino Societia Zoologica Italiana, ser. 2, vol. 5, p. 2. 

 1907. Tubucellaria opuntioides Calvet, Expedition scientifique du Travailleur 



et du Talisman, p. 402. 

 1907. Tubucellaria cereoides Waters, Tubucellaria, its species and ovicells, 



Linnean Society Journal, Zoology, vol. 30, p. 129, pi. 15, figs. 8, 9, 15, 16 



(geographic distribution). 

 1909. Tubucellaria cereoides Waters, Bryozoa of the Sudanese Red Sea, Journal 



Linnean Society London, vol. 31, p. 142. 

 1909. Tubucellaria opuntioides Levinsen, Studies upon Cheilostomatous Bryo- 

 zoa, p. 305, pi. 16, fig. 4. 

 1912. Tubucellaria cereoides Canu, Bryozoaires Helvetiens de l'Egypte, M6moires 



de 1 'Institut Egyptien, vol. 6, p. 207, pi. 11, fig. 13. (Paleontologic 



bibliography and geologic distribution.) 

 1917. Tubucellaria cereoides Canu, Bryozoaires du fossiles des Terrains du 



Sud-Ouest de la France, Bull, de la Societ6 geologique de France, ser. 4, 



vol. 17, p. 356. 



1920. Tubucellaria cereoides Canu and Bassler, North American Early Tertiary 



Bryozoa, Bull. 106, U. S. National Museum, p. 542. 



1921. Tubucellaria cereoides Robertson, Bryozoa from the Bay of Bengal. 



Records Indian Museum, vol. 22, p. 53. 



This very abundant Mediterranean species, the bibliography of 

 which is given above, is represented in the Philippines by numerous 

 specimens to which we apply the new varietal name gracilis. 



TUBUCELLARIA CEREOIDES GRACILIS, new variety 



Plate 44, figs. 1, 2 



The spiramen is removed from the peristomice; the segments are 

 more slender than in the typical form. 



Measurements. — Zooecial z ~ ' mm " 



U2 = 0.45 mm. 



Peristome, 0.22 mm.; length of segments, 13.00; and diameter of 

 segments, 0.80-1.00. 



It is difficult to separate our specimens from the species of Ellis 

 and Solander, the micrometric measurements and the general aspect 

 being identical. However, the segments are much smaller and the 

 ascopore is more distant from the peristomice than in the Mediter- 

 ranean species. The latter character has already been figured by 

 MacGillivray, 1886, from more typical, Australian specimens. We 

 propose therefore the variety gracilis which appears limited to the 

 Philippines. The "basis ramae" or pores for insertion of the articu- 

 lation fibers, are placed irregularly on the zooecia but always distant 

 from the peristomes. They are generally triperforate : 



Biology. — The life of the articulated bryozoa is always difficult to 

 •observe, for it is very rare that the entire zoarium is found. Our 



