NORTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 119 



MICROPORELLA CILIATA Linnaeas, 1759. 



Plate 20, figs. 1-6; plate 36, figs. 4, 5. 



1759. Cellepora ciliata Linnaeus, Systema Naturae, ed. 12, p. 12S6. 



1889. Microporella ciliata Jelly, A synonymic catalogue of marine Brj-ozoa, p. 179 (bibUography). 

 1891. Microporella ciliata Nevi.^ni, Briozoi postpliocenici di Livorno, Bollettino della Societa 

 geologica italiana, vol. 10, p. 117 (sep. 21). 



1895. Microporella (Fenestrulina) ciliata Neviani, Briozoi fossili della Farnesina Palaeontographia 



italica, vol. 1, p. 105 (sep. 29), pi. 5, fig. 25. 

 1895-1900. Microporella {Fenestruliim) ciliata Nevl*.ni, Briozoi neozoici di alcune locaUta d'ltaUa, 

 Bollettino della Societa Romana per gli Studi Zoologici, pt. 1, vol. 4, p. 7; pt. 2, vol. 4, 

 p. 234 (sep. 10); pt. 3, vol. 5, p. 122 (sep. 21); pt. 5, vol. 7, pp. 13, 15; pt. 6, vol. 8, p. 3, 9, 10. 



1896. Microporella (Feneslmlina) ciliata Nevlani, Briozoi postpliocenici di SpUinga, Atti Academia 



Gioenia di Scienze NaturaU in Catania, vol. 9, p. 22. 

 1900. Microporella (Fenestrulina) ciliata Neviani, Briozoi neogenici della Calabrie, Palaeontographia 



itaUca, vol. 6, p. 176 (sep. 62) (regional bibliography). 

 1900. Microporella (Fenestruliiw) ciliata Neviani, Briozoi terziari et posterziari della Toscana, 



Bollettino della Societa geologica italiana, vol. 19, p. 368 (sep. 19). 

 1904. Microporella injlata Ulrich and Bassler, Maryland Geological Survey, Miocene, p. 416, pi. 



110, fig. 7. 



1904. Microporella praeciliata Ulrich and Bassler, Maryland Geological Survey, Miocene, p. 415, 



pi. 110, fig. 6, pi. 113, fig. 3. 



1905. Microporella {Fenestrulina) ciliata Neviani, Briozoi fossili di Canubare (Calabria), Bollettino 



della Societa geologica italiana, vol. 23, p. 324 (sep. 22). 



1907. Microporella ciliata CAL\nET, Expeditions scientifiques du Travailleur et du Talisman, p. 403, 



(regional bibliography). 



1908. Microporella ciliata Waters, The Bryozoa of the Sudanese Red Sea, Journal Liimean Society, 



London, vol. 31, p. 143. 



1911. Microporella ciliata Guerin-Ganivet, Bryozoaires provenant de la Rade de Brest, Travaux 



du Laboratoire de Zoologie de Concarneau, p. 2. 



1912. Microporella ciliata Guerin-Ganivet, Contributions a I'etude des Bryozoaires des cotes 



armoricaines. III, Travaux scientifiques du Laboratorie de Zoologie de Concarneau, p. 12. 

 1912. Microporella ciliata Osburn, Bryozoa of Woods Hole Region, Bulletin Bureau of Fisheries, 



vol. 30, p. 233, pi. 24, fig. 44; pi. 30, fig. 90. 

 1912. Microporella ciliata Barroso, Briozoos de la estacion de biologia maritima de Santander, 



Trabajos del museo de ciencias naturales, p. 26. 



1912. Microporella ciliata Osburn, Bryozoa from Labrador, Newfoundland, and Nova Scotia, 



Proceedings U. S. National Museum, vol. 43, p. 279. 



1913. Microporella ciliata Guerin-Ganivet, Bryozoaires de la mission arctique commandee par Ch. 



B^nard, Soci6t6 d'oceanographie du Golfe de Gascogne, vol. 7, p. 23. 

 1913. Microporella ciliata Cahv, Contribution a I'etude des Bryozoaires fossiles, IV, PUocene d'Alger, 



Bulletin Soci6t4 Geologique France, vol. 13, p. 125. 

 1915. Microporella ciliata Barroso, Contribucion al conocimiento de los Briozoos marinos de Espana, 



Boletin de la Sociedad espanola de Historia natural, vol; 15, p. 414. 

 1915. Microporella ciliata Waters, Marine biology of the Sudanese Red Sea, Journal Linnean 



Society, London, vol. 31, p. 443. 

 1917. Microporella ciliata Barroso, Notas sobre Briozoos, Boletin de la R. Sociedad espanola de 



Historia natural, vol. 17, p. 4. 



The great variations in the calcification of the frontal in this species have been 

 known for a long time. They have been carefully noted by the zoologists and 

 depend solely on the nature of the water and the age of the zoarium. When the 

 granulations are important, the tremopores appear very small and even may dis- 

 appear leaving the frontal smooth (forma injlata). If the granulations are little 



