196 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
NELLIA OCULATA Busk, 1852. 
Plate 82, figs. 6-10. 
Bibliography of living forms. 
1889. Farcimia tenella Jelly, A Synonymic Catalogue of Marine Bryozoa, p. 94 (cites general 
bibliography ) . 
1909. Farcimia oculata Waters, Reports on the Marine Biology of the Sudanese Red Sea, 
Journal Liunean Society, London, Zoology, vol. 31, p. 167. 
1913. Farcimia oculata Waters, Marine Fauna of British East Africa and Zanzibar, 
Bryozoa, Cheilostomata, Proceedings Zoological Society London, 1913, p. 489, pi. 67, 
figs. 8, 9. 
1914. Nellia oculata Osburn, The bryozoa of the Tortugas Islands, Florida, Publication 
Carnegie Institution of Washington, No. 182, p. 191 (American bibliography). 
Bibliography of fossil forms. 
1S83. Membranipora oculata Waters, Fossil Cheilostomatous Bryozoa from Muddy Creek, 
Victoria, etc., Quarterly Journal Geological Society, London, vol. 39, p. 434. 
1895. Farcimia ocul&ta MacGillivray, A Monograph of the Tertiary Polyzoa of Victoria. 
Transactions of the Royal Society of Victoria, vol. 4, p. 50, pi. 6, figs. 6, 7. 
1907. Farcimia tenella Canu, Bryozoaires des terrains tertiaires des environs de Paris, An- 
nales de Paleontologie, vol. 2, p. 20, pi. 11, figs. 36, 37. 
1912. Farcimia oculata Cantj, Etude comparee des Bryozoaires Helvetien de l’Egypte avec 
les Bryozoaires vivants de la Mediterranee et de la Mer Rouge, Memoires Institut 
Egyptien, vol. 1, p. 191, pi. 10, figs. 16, 19. 
The American fossil specimens have not the delicacy of the recent species, the 
segments being generally a little larger. The same is true of the examples found 
in the Lutetian of France. The measurements are quite variable on the same 
segment. We consider the upper zooecia of a segment as the more normal ; the 
measurements for these are as follows : 
Measurements . — Opesia 
[4(9=0.30 mm. 
(49=0.10-0.12 
mm 
Zooecia 
\Lz= 0.40-0.50 mm. 
\lz= 0.20 mm. 
Below the opesium there is sometimes a small isolated radicular pore. The 
lower zooecium is often incomplete and bears only a radicular pore. The ovicells 
are very difficult to distinguish. 
Occurrence — Vicksburgian (Marianna limestone) : Salt Mountain, 5 miles 
south of Jackson, Alabama (abundant) ; Vicksburg, Mississippi (rare in the lower 
beds) . 
Vicksburgian (Byram marl) : West of Woodward, Wayne County, Mississippi 
(rare); Byram, Mississippi (rare). 
Geological distribution . — Lutetian of the Paris Basin (Canu) ; Helvetian of 
Egypt (Canu) ; Miocene of Australia (MacGillivray). 
Habitat. — Pacific : Australia, Crozet Island and the Philippines. Indian 
Ocean: Off Ceylon, Mergui Archipelago, Zanzibar, and in the Red Sea. Atlantic: 
Off Florida, St. Thomas, and the Tortugas. 
Specimens have been dredged from a depth of 17 to. 450 meters. Off the 
Tortugas Islands Osburn mentions that it is abundant on sponges from 20 to 28 
meters. The Tertiary Gulf was certainly deeper than to-day and for this reason 
fossil examples are rare. 
Plesiotypes. — Cat. Nos. 64249, 64250, U.S.N.M. 
