SUPPLEMENT. 
151 
Genus LIMARIA.— Steininger. 
Small, ramose ; coralla quite solid, cells witli a subtriangular 
aperture ; calicles none. 
Genus STROMATOPORil.— Goldfuss. 
Massive. Coralla convex, concentricallj faint rugate, cells 
pore-like, very minute, situated in the concentric depressions. 
Genus CHAUKOPORA.— Phillips. 
Massive. Coralla consisting of concentric or nearly flat beds, 
perforated hj small vermiform tlexuous tubules, and others 
larger, nearly parallel, and non-lamelliferous (?). 
Genus DISTICHOPORA. — Lamarck. 
Ramose, quite small ; branched in a plane. Coralla firm ; 
branches often a little compressed, and with a cellular furrow on 
two opposite sides extending over the extremity. 
1. Distichopora violacea {Lamarck). — Violet, with the tips a little yel- 
lowish ; 2 to inches high, and ramose ; branches somewhat compressed, 
dichotomous, 1 to li lines broad. 
Plate 60, fig. 3 ; corallum, natural size ; 3 a, extremity of a branch, magnified. 
— East Indies and Pacific. Paumotu Archipelago.— “Rrp. Exp. 
2. Distichopora gracilis {Dana). Reddish ; more slender than the 
violacea, ramulous ; branchlets one-third as broad, at summit about a third of 
a line. 
Plate 60, fig. 4, corallum, natural size ; fig. 5, a variety ? natural size ; 5 a, 
5 5, views, enlarged. — Paumotu Archipelago. — Exp. Exp. 
Genus ORBULITES.— Lamarck. 
Free; disk-shape, circular, nearly flat above and below; both 
surfaces minutely porulose. 
