76 ROYAL SOCIETY OF CANADA 
as felina, with his crassicornis, and there is no doubt but that the species 
should be known as felina, as has been maintained by Bruguiére (1789), 
Fischer (1874), von Marenzeller (1877) and Haddon (1889). 
CRIBINA STELLA (Verrill). 
This form is not uncommon on the rocks of St. Andrews, occurring 
between tide marks and usually under stones in tidal pools. It was 
originally described by Stimpson (1853) as Actinia coriacea Johnston, 
with some doubt, however, as he was not able to examine the specimens 
while they were still alive. Later it was described by Verrill (1864) 
as Bunodes stella, this description being accompanied by excellent 
figures from drawings by Professor E. 8. Morse. 
In the largest example obtained the column had a height of 1.3 
em., and the diameter of the disk was about 2 em, in the expanded 
condition. The tentacles were about 2 cm in length. Larger exam- 
ples, however, occur, since Verrill states that he obtained one mea- 
suring 5 cm. in height and he also received large specimens from Green- 
land and Cumberland Bay, which were at first identified with A. spec- 
tabilis Fabr. (Verrill, 1879), and later (1899), referred to the present 
species. 
The column in the St. Andrews examples was olive green or brown 
in colour and the tentacles a translucent greyish or brownish, with an 
opaque white spot at the base and a faint whitish chevron mark about 
half way between the tip and the base. In some examples the ten- 
tacles of the first cycle had an additional whitish band between the 
basal spot and the chevron. The disk was brownish, and in young 
individuals showed opaque white bands radiating to the bases of the 
primary tentacles. The stomatodeum was white. 
The base is adherent and expanded. The column wall is provided 
in its upper part with rows of verrucæ to which particles of shell and 
gravel may adhere; the verruce extend from the margin to about the 
middle of the column or even further, but do not reach the limbus. In 
structure they resemble closely those I described for Phymanthus 
crucifer (MeMurrich, 1889), their ectoderm consisting of slender cells 
and lacking almost entirely the gland cells which are elsewhere abundant 
on the column wall. The cells stain feebly, but at their bases they 
enlarge somewhat and take the stain a little more deeply; these en- 
largements correspond to the oval or pyriform structures I described 
in Phymanthus and may possibly be muscular in character. A distinct 
layer of nerve fibrils intervenes between them’ and the surface of the 
mesoglæa. 
The margin is separated by a fosse from the bases of the outer 
tentacles, and on the inner wall of the fosse there is a well developed 
