10 
TRIBE I. ASTR^ACEA. 
Plate 4, fig. 30, animal natural size ; «, part of the surface of one of the 
varieties. — From rocks, island of San Lorenzo, Callao, Peru. 
Actinia reticulata {Couihouy). — Exterior smooth and reticulately corru- 
gate, subcylindrical, one and a half inches high, and two and a half thick, 
with the disk very much dilated (3^ inches in breadth), and margin somewhat 
five-lobed, not tuberculate ; tentacles very numerous, quite short (3 lines), not 
turgid, and covering the larger part of the disk, the inner a little the largest; 
mouth somewhat prominent, 6 to 8 lines long. 
Plate 4, fig. 31, the expanded animal, natural size ; <x, the same contracted, of 
nearly a hemispherical form. — Orange Harbor, Tierra del Fuego. — Exp. Exp, 
Actinia fuegiensis {Couihouy). — Subcylindrical, 2 inches in diameter, 
exterior smooth, upper and lower extremities sparingiy dilated, margin of base 
slightly undulate ; tentacles throughout remotely scattered, turgid, 3 lines 
long ; mouth small, circular, 5-cleft : form of animal when contracted very 
much depressed, convex. 
Plate 4, fig. 32, expanded animal, natural size ; a, upper view of the disk ; 
h, animal contracted. — From rocks, on the shores of Orange Harbor, Tierra 
del Fuego. 
Actinia nymph^a [Drayton). — Small, 8 lines high, exterior smooth ; upper 
and lower extremities dilated (1 inch in breadth) ; margin of base regularly 
crenate, crenatures a line and a half broad, sides correspondingly marked 
with vertical lines ; tentacles short (2-2^ lines in length), in 3 series, slender ; 
mouth a little prominent, and one-sixth of an inch long : the form of the con- 
tracted animal a very low depressed truncated cone. 
Plate 4, fig. 33, expanded animal, natural size ; a, the same contracted. — ■ 
Valparaiso, Chili. — Exp. Exp. 
Actinia rubus (Drayton). — Small, f of an inch high, exterior smooth; 
upper and lower extremities dilated (nearly an inch broad), base crenated, 
and crenatures a line broad, sides marked with vertical interrupted lines ; ten- 
tacles short (2i lines in length), in 2 series ; mouth a little prominent, nearly 
a sixth of an inch long. 
Plate 4, fig. 34, animal natural size; a, same, contracted.— -Valparaiso, 
Chili. — Exp. E cp. 
Actinia gemma (Drayton). — Small, nearly cylindrical, ^ an inch thick, ex- 
terior with contiguous tubercles ; disk scarcely at all dilated ; tentacles short 
(2|- lines long), in 2 series, rather slender; animal, when contracted, pyriform. 
Plate 4, fig. 35, the expanded animal, natural size ; a, the same contracted. 
— False Bay, Porto Praya, Cape de Verdes. — Exp. Exp. 
Actinia curta (Drayton). — Small, very much depressed, 6 to 8 lines broad, 
and scarcely H lines high, dilated at base and lobed, but disk scarcely at all 
spreading; tentacles subequal, 3 lines long, in 2 series, rather stout. 
