TRIBE IL— CARYOPHYLLACEA, 
u 
Near Naples, Mediterranean Seix,~—Cavolini. ! 
2. Palythoa auricula (Lesueur,) Dana. — Reddish; polyps united only 
at base, prominent, turbinate, 3 lines broad, and 3 to 6 high; disks 4 lines 
broad, greenish ; tentacles 26-30, reddish. ^ ; 
St. Vincent and Dominica, West Indies, covering the rocks at the entrance n 
of the port.~LesweMr. jl 
3. Palythoa NYMPHiEA (Lesueur,) Dana . — Resembling the auricula^ yel- || 
lowish-red ; disks yellow, with a green circle at the base of the tentacles ; I 
tentacles about 50 in number, in two series, and of a light brown color ; mouth 
prominent. j 
St. Christopher, West Indies. — Lesueiir. I 
4. Palythoa fuliginosa { H . ^ Ehrenherg,) Dana. — -Brownish-yellow, ; 
polyps united only at base, when contracted only 2^ lines broad, and quite |l 
prominent; when expanded an inch high, clavate ; disks with 32 teeth to the i; 
margin ; tentacles clavate, obtuse, banded wdth brown and white, about 64 in ; 
2 series, the inner larger. j 
The Red Sea. — Ehrenherg. \ 
II. Short mammillary — polyps laterally united^ hut with free summits. 
5. Palythoa mammillosa {Ellis,) Lamouroux. — Polyps laterally united, 
but vritli quite prominent summits when contracted, ^ to 1 inch high and nearly 
3 lines broad. 
Coasts of Jamaica. : 
6. Palytha ocellata (Ellis,) Lamouroux. — Similar to the mammillosa, 
rust-colored ; polyps united by their sides, but prominent above, 3 lines broad, 
sides wrinkled. 
St. Domingo, West Indies. — Ellis. 
III. Scarcely at all mammillose, polyps united quite to their summits. 
7. Palythoa glareola (Lesueur,) Dana. — Polyps short, and united by 
their sides quite to the summit, disks deep violet, whitish at centre ; tentacles 
20, four of which are grayish-red. 
Guadaloupe, on the volcanic rocks of Point Noire. — Lesueur. 
8. Palythoa flavo-viridis (H. Sf Ehrenherg). — Polyps united to their 
summits, bright greenish-yellow ; disks margined with 16 crenatures, and as 
many tentacles ; tentacles hyaline, and in a single series ; internal lamellae 
.32 in number. 
Red Sea. — Ehrenherg. 
9. Palythoa argus ( H . ^ Ehrenherg). — Brownish-yellow, often subglo- 
bose ; polyps, when contracted, 6 to 10 lines broad ; disks with 20 crenatures 
