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TRIBE IV. ANTIPATHACEA. 
CERIOPOEA. — Blainville. 
Minute; glomerate or lamellose. Coralla consisting of con- 
centric beds ; surface covered with very minute circular cells, 
irregularly scattered. 
TEEEBELLAEIA. — Lamoueoux. 
Quite small; ramose; branches oblong conical, and spirally 
annulate ; cells minute, oval, or subtriangular, and arranged in 
quincunx order. 
APSENDESIA.~Lamouroux. 
Quite small. Coralla consisting of aggregated crest-like plates, 
having the margin celliferous ; cells minute, pore-like, subangu- 
lar, irregularly scattered. 
Tribe IV.—ANTIPATHACEA. 
Actinaria having 6 equal tentacles; gemmiparous, with the 
gemmation inferior. 
Family I. — ANTIPATHIDiE. 
Attached zoophytes, caulescent, and usually ramose ; forming 
no coral secretions, except epidermic foot-secretions, which con- 
stitute the axis of the branches. 
