194 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
1909. Cab erect, boryi Nokman, The Polyzoa of Madeira and neighboring islands, Journal 
Linnean Society, London, Zoology, vol. 30, p. 285. 
1912. Caberea boryi Cantj, l5tude comparee des Bryozoaires Helvetiens de l’Egypte avec 
les Bryozoaires vivants de la Mediterranee et de la Mer Rouge, Memoires Institut 
Egyptien, vol. 6, p. 198, pi. 10. fig. 17 (gives paleontological references). 
Affinities. — Our unique specimen appears to us correctly determined within 
the limits compatible with the extreme fragility of this small fossil. As in the 
fossil representative from Egypt, the opesium measures 0.20 mm. by 0.12 mm. 
Traces of the scutum are visible on almost all of the zooecia, which prevents this 
specimen from being identified with Caberea ellisi Audouin. We have not noticed 
the occurrence of distal spines. Therefore this is not Caberea darwini Busk. How- 
ever, the small frontal avicularium placed near the zoarial axis appears more trian- 
gular. 
O ccurrence . — Vicksburgian (Glendon member of Marianna limestone) : West 
bank of the Conecuh Biver, 1 mile below mouth of Sepulga River, Escambia 
County, Alabama (very rare). 
Habitat. — Atlantic: Madeira Islands. English Channel, and British waters 
generally. Pacific: New Zealand and Australia. Mediterranean and Adriatic. 
Although floating and parasitic on marine algae this species has been found 
in the Mediterranean at depths from 70 to 100 meters, but we are ignorant as to 
whether the specimens were living. The species has never been observed off either 
the Atlantic or Pacific coast of America, where it is replaced by Caberea ellisi 
Audouin, 1826. (Robertson, Osburn). Its presence in Madeira renders its dis- 
covery in Florida very probable. 
Geological distribution. — Miocene of Australia (Waters) ; Helvetian of Egypt 
(Canu) ; Zanclean of Italy (Seguenza) ; Sicilian of Italy (Seguenza and Stefani) ; 
Quaternary of Italy (Seguenza, Neviani, Waters). 
Plesiotype.- — Cat. No. 64246, U.S.N.M. 
Family FARCIMINARIIDAE Busk, 1852. 
The zooecia are furnished with an obliquely ascending distal wall and sepa- 
rated by common lateral walls, which are furnished with a small number (2M) of 
uniporous septulae ; no true spines. The avicularia dependent, sometimes depressed, 
sometimes strongly projecting. The ovicells are endozooecial. The zoaria are 
dichotomously branched tufts, with slender, prismatic, sometimes jointed segments, 
on which the zooecia are arranged in longitudinal rows (generally 4-6) around an 
axis formed by the adjoining separating walls. (After Levinsen, 1909.) 
There have as yet been no anatomical researches on the representatives of the 
family. 
The known genera are as follows, the last one alone being represented in our 
American collections : 
Columnaria Levinsen, 1909. 
Farciminaria Busk, 1852. 
Nellia Busk, 1852. 
