790 
BULLETIN 106, UNITED STATES NATIONAL MUSELTM. 
It differs from Tervia bialtevnata Gregory, 1892, and from Tervia filiformis 
D’Orbigny, 1852, in its large micrometric measurements. 
Occurrence. — Middle Jacksonian: Wilmington, North Carolina (very com- 
mon) ; near Lenuds Ferry, South Carolina (very common). 
Upper Jacksonian (Ocala limestone) : West bank Sepulga River Escambia 
County, Alabama (very rare) ; Alachua, Florida (rare). 
Cotypes. — Cat .No. 65.434, U.S.N.M. 
TERVIA PARVULA, new species. 
Plate 147, figs. 12-14. 
Description. — The zoarium is formed of small compressed branches. The tubes 
are distinct, separated by a salient thread, arranged in quincunx or in irregular 
rows; the peristome is thin, small , orbicular, salient. On the dorsal the tubes are 
separated by a salient thread and superposed in lozenge-shaped areas. 
Diameter of the peristome 0.10 mm. 
Distance between the peristomes 0.30 mm. 
Width of the branches 0.40 mm. 
Measurements . — 
Affinities. — This species differs from Tervia gracilis in its smaller micrometric 
dimensions. The few specimens collected bear no ovicells. 
Occurrence. — Upper Jacksonian (Ocala limestone) : Chipola River, east of 
Marianna, Jackson County, Florida (rare). 
Cotypes. — Cat. No. 65435, U.S.N.M. 
TERVIA TUMIDA Smitt, 1871. 
Plate 140, figs. 14-21. 
1871. Tubulipora ( Idmonea ) tumida Smitt, Kritiske forteckning ofer Skandinaviens 
Hafsbryozoer, Ofversigt af Kongl. Yetenskaps-Akademiens Forhandlingar, vol. 28, 
p. 1116, pi. 20, figs. 5, 6, 7. 
1903. Idmonea tumida Waters, Bryozoa from Franz-Joseph Land, Journal Linnean So- 
ciety, London, vol. 29, p. 168, pi. 21, figs. 4, 5. 
Description. — The zoarium, is free, linear, bifurcated, provided with radicells 
at the bifurcations, with subcircular transverse section. The fascicles are salient, 
quite far apart from each other and also from the median line, alternately arranged 
and extending beyond the zoarial margins; they are formed of three or four 
equal zooecia. The tubes are visible, flat, separated by a salient thread. The 
dorsal lamella is very convex and striated longitudinally by the tubes. The 
ovicell is globular, elliptical, very salient; the oeciostome is small, transverse, 
placed near the dorsal of the zoarium. 
Diameter of the tubes 0.10 mm. 
Distance between the fascicles 0.55-0.80 mm. 
Measurements. 'Width of the fascicles 0.10 mm. 
Width of the zoarium 0.70 mm. 
