66 
TRIBE n.— CARYOPHYLLACEA. 
Plate 27, fig. 4, corailum of specimen from the Feejees, natural size. — The 
Red Sea, Ehrenberg. — Singapore and Feejee Islands, Exp. Exp. 
6. Dendrophyllia diaphana {Dana). — Low, subramose, fuscous, polyps 
3 to 4 lines broad. Corailum a cluster of cylindrical or slightly elliptical cali- 
cles, very finely striate without, and somewhat scabrous, sides thin and dia- 
phanous, margin entire; cell quite deep (nearly 4 an inch); 6 to 10 larger II 
lamellsB, and 2 to 3 intermediate much smaller. 
Plate 27, fig. 3, corailum, natural size. — Singapore, East Indies. — Exp. Exp. 
7. Dendrophyllia rubeola {Quoy ^ Gaymard). — Cespitose, scarcely A 
ramose; polyps about 2 lines broad, reddish; tentacles slender. Corailum 
with cylindrical calicles, 2 to 3 lines long, somewhat striate, truncate at sum- 
mit, margin entire ; cell conical ; the larger iamelloB alternate with smaller. a 
New Zealand. — Qiioy ^ Gaymard. \ I 
D. scabrosaf Dana. — Singapore. Plate 27, fig. 2. ^ | 
Genus IX. — OCULINA. — Lamarck. 
Aggregato-gernmate, one bud proceeding from each polyp, 
the succession forming elongating stems, divaricately ramose. I 
Coralla solid with the exterior smooth ; calicles subcylindrical ; I 
lamellae entire, more or less exsert. , 
I. LamellcB very exsert and unequal. 
1. Oculina hirtella {Linn.) Lamarck. — Ramose, stout, branches below 
sometimes coalescing and often an inch thick, above at apex a fourth of an 
inch. Corailum with the calicles nearly 2 lines thick, lamellas very much ex- 
sert and unequal, truncate at apex. 
East Indies. — Lamarck. I 
2. Oculina horrescens {Dana). — Cespitose, much branched, branches 
much coalescing, branchlets short, 2 to 3 lines thick. Corailum with promi-; 
nent calicles, nearly li lines broad, lamellae unequal, 10 to 12 larger, much ; 
exsert. 
Plate 28, fig. 1, corailum, natural size ; 1 a, section of stem and calicle, en- 
larged; 16, calicle enlarged. — Feejee Islands.— Exp. 
II. LamellcB but little exsert and equal. 
3. Oculina prolifera {Pallas,) Lamarck. — Ramose and subdichotomous, 
reticulato-coalescent; polyps very large, axillary or terminal, and their sides 
often proliferous. Corailum with the calicles turbinate, often 6 lines thick ; 
lamellae a little exsert, sebequal and somewhat revolute. 
Norwegian Sea. — Pallas, 
