BaLe.—Hydroids from the New Zealand Coast. 229 
in middle, but these are not produced into tentacles. The structure thus 
corresponds with that of several of the species described by Allman, and 
it is probable that, as in those species, the medusa does not become free. 
Manubrium shorter than umbrella, but very stout, occupying great part 
of cavity. cst apparently mature, averaged about 0-35 mm. in length 
by about 0:25 mm. in width. 
Though not more than 23 tentacles were present on any of these 
specimens, while C. tenella is said to have from 25 to 30, I do not think 
the difference sufficient to invalidate their reference to Farquhar's species. 
Loc.— Wellington (Farquhar): Taylor's Mistake (Chilton). 
Syncoryne sp. 
A small Syncoryne, represented only by four or five specimens not 
exceeding 6 mm. in height, agrees pretty closely with S. tenella in habit, 
and in the character of the hydranths and the medusae, but differs 
in the peculiar nature of the armature. Capitula of tentacles furnished 
ith numerous small nematocysts, very delicate, and so faintly outlined 
that they may be overlooked on casual examination. But besides these 
there are present larger ones (about 0-008 mm. in length), elliptic, and 
so highly refractive as to be strikingly conspicuous. Their number varies 
from 1 to about 15, and a few capitula may be without them 
In the stream of coenosarc are found a few of these nematocysts, 
with a great number of others about half their length, and still more 
numerous smaller oblong bodies which may possibly be yet another form 
of nematocyst. All these bodies have the same highly refractive character 
as the large nematocysts. Perhaps this may be only a peculiar condition 
of S. tenella. 
Syncoryne sp. Hartlaub. 
Hartlaub, 1901, p. 363. 
Hartlaub mentions a species of Syncoryne from French Pass, but the 
description is incomplete, and the species cannot be identified with certainty. 
Syncoryne eximia Allman. 
Hincks, 1868, p. 50: Allman, 1871, p. 282. 
The form which I refer, with little doubt, to the above species is 
represented in Professor Chilton’s collection by a single mounted fragment, 
and I possess a similar mount, evidently ч same gathering, for which I 
hive to thank Mr. C. B. Mortis, of Oam о original collector 
Stems strongly annulated at base, as veli as at points where branches 
originate, and the latter exhibit the онорон” tendency to a unilateral 
arrangement, while the polypiferous ramuli are mostly more or less loosely: 
ringed throughout, and are prolonged into membranous cups of extreme 
tenuity (sometimes indistinct), surrounding bases of hydranths. The 
latter are somewhat clavate, with about 20 tentacles, the first 4 formin 
a regular verticil, the others scattered. Medusae ovate and pedunculate, 
becoming more nearly globular at maturity and assuming the typical Sars?a 
form : they are numerous and often crowded on the lower half or two-thirds 
of body. Hydranths reach about 1:4 mm. in length 
Loc.—Oamaru rocks (Mr. C. B. Morris). 
