102 
TRIBE III. MADREPORACEA. 
Plate 50, fig. 3, branch in outline, of specimen from the Sandwich Islands ; 
3 a, verrucae, natural size.— East Indies and Pacific Ocean. Sooloo Sea and f 
Sandwich Islands.— Exp. 
8. PociLLOPORA CLAVARIA (Ehrenhevg). — Suffruticose, branches nearly 
simple, dichotornously subdivided, ^ an inch thick, lateral surface and obtuse 
apex ramuloso-verrucose, verrucae subequal, obtuse, subovate, sometimes lobed 
and obsoletely proliferous, middle of the apex more distinctly proliferous. 
Corallum having the cells | to ^ of a line broad, with a slender columella. 
9. PociLLOPORA SQUARROSA [Dana). Rudely hemispherical, branches 
very closely crowded, stout, nearly straight, unequally compressed, and un- 
even, summits rounded, ^ to 1 inch thick, and f to 2 inches broad ; surface 
coarsely verrucose, verrucae stout, subglobose, very irregular, and sometimes 
like large tubercles ; often obsolete at summit. Corallum having the cells 
small (i of a line) ; star scarcely distinct, with one lamellae quite broad. 
Plate 50, fig. 3, part of a branch, natural size ; 5 a, extremity, showing sur- 
face, ditto. — Tahiti, Society Islands. — Exp. Exp. H 
10. PociLLOPORA ELONGATA {Dana). — Hemispherical, branches widely 
separate, nearly straight, and very long, subterete, f of an inch thick, dilated 
at apex an inch thick and often 2 inches broad), every where below and 
above even to the very apex verrucose, verrucas even, obtusely conical. Co- 
rallum having the cells small of a line broad), star neat and quite distinct, 
and situated rather deep within the cell ; a minute columella sometimes seen. 
Plate 50, fig. 4, branch in outline, natural size; 4 6, cells, enlarged.— Cey- 
lon, Indian Ocean. — Rev. G. A. Apthorp. 
11. PociLLOPORA LiGULATA [Dana). — Hemispherical, branches subdivided, ' 
rather remote, straight, thin (2 to 3 lines), much compressed and complanate,’! 
J to Ig inches wide, verrucse small, ascending, and appressed to the branch, 
obsolete at apex. Corallum having the cells short stellate, columella very 
distinct, and united by one of the lamellae to the side of the cell. 
Plate 50, fig. 2, branch, natural size; 2a, surface and cells, enlarged. — 
Sandwich Islands. 
12. PociLLOPORA ELEGANS {Dana). — Neat hemispherical, branches lamel- | 
lar, subsimple, 1 to 2h inches broad, and i of an inch thick, evenly and crowd- 
edly verrucose, summits naked, verrucae small. Corallum having small cells | 
(■!• of a line); star and columella indistinct. i 
Plate 51, fig. 1, corallum, natural size; la, verrucae, natural size. — Feejee I 
Islands. — Exp. Exp. | 
13. PociLLOPORA MEANDRiNA {Dana). — Cespitose, neatly hemispherical; 
branches lamellar, often sinuous, nearly simple, ^ to i an inch thick, 1 to 3 ’I 
inches broad, neatly verrucose, summits naked. Corallum with the verrucae ‘ 
