Hurron.—On the Sea Anemones of New Zealand. 311 
ILYANTHIDÆ. 
Analysis of the genera (after Gosse). 
Tentacles of one kind ; marginal 
Column thick, pear-shaped. 
Mouth with a papillate gonidial tube .. A Peachia., 
Mouth simple ... d ies d -. — Dlyanthus, 
Column slender, long, worm-shaped 
Invested with an epidermis  ... ded „Edwardsia. 
Without an epidermis es ...  _Haleampa, 
Tentacles of two kinds; marginal and pum 
Naked ; idis swimming  . es -. Arachnactis, 
Padling in a membranous ihe: sedentary 
Column inferiorly perforate ... --- Cerianthus, 
Column inferiorly imperforate .... Saccanthus. 
Minyadida 
Analysis of the genera (after Milne-Edwards.) 
Tentacles simple. 
Column smooth ees ERE e ..  Plotactis. 
Column warty MA is ses 2; Minyas. 
Tentacles compound  ... s de: Pid ..  Aautactis, 
Descriptions of the New Zealand Species, 
PHYLLACTIDA. 
Tentacles of two kinds ; simple and compound. 
Oulactis (M. Edwards). 
Column with warts. Compound tentacles placed round the margin of 
the disc, and outside the simple tentacles. 
Oulactis plicatus, sp. nov. 
Column cylindrical, not much expanded at the base, about as high as 
broad; warts arranged vertically in numerous (80 or 100) rows. Brownish 
yellow, with the warts dirty white. Disc circular, concave; the margin, 
when expanded, thrown into five deep folds. Crimson, radiately streaked 
with yellow near the margin. The simple tentacles are conical, about two- 
thirds of an inch in length, and arranged in two rows. They are trans- 
parent, of a violet or greenish colour, and often with opaque whitish 
transverse bands on the interior aspect. The compound tentacles are in a 
single row, and about two-thirds the length of the simple tentacles. They 
are white, and multi-lobed, the lobes being subcylindrical and rounded at 
the ends. 
Height about 2} in, when extended. In rock-pools on the coast, near 
Dunedin, 
