88 MR. A. W. WATERS ON 
As pointed out by Bidenkap, there are 4 oral spines, whereas 
in the British and Mediterranean UW. coccinea there are usually 6, 
though in a beautiful specimen of the tesselated variety from 
Htrétat there are only 4. I bkave been unable to find any lyrula 
(central denticle); there is a sinus in the much raised secondary 
aperture, and internal thickenings on both sides of the sinus. 
There are about 8 pore-chambers to each zocecium, and 20-21 
tentacles. The ovicell is smaller than in the Naples IL. coccinea, 
but the shape of the zocecia and avicularia is similar, and the 
surface is coarsely granulated. Growing on Diastopora intri- 
caria there are the primary and the second zocecium of a Smittia, 
which no doubt is the 8S. Jacksonit. The primary has 13 spines, 
and the second zocwecium with the mucro much raised has 8 spines. 
The Naples and British coccinea has 12-13 spines to the primary 
zocecium. In the sections cut no glands are recognized. 
This in many respects is similar to Smittia prestans, Hincks, 
from Australia, especially in the shape of the peristomial sinus 
(see my figure, Ann. Mag. Nat. Hist. ser. 6, vol.iv. pl. i. fig. 7). 
Loc. Spitzbergen. 
Jackson-Harmsworth Exp.: Lat. 77° 55’ N., long. 55° 25’ E., 
115 fath. ; lat. 77°55’ N., long. 53° 20' E., 180 fath. 
48. SMITTIA TRISPINOSA, Var. LAMELLOSA (Smitt). (Pl. 12. 
figs. 19-21.) 
Lischarella Jacotint, forma lamellosa, Smitt, “ Krit. Fort.” 1867, pp. 11 
& 86, pl. xxiv. figs. 53-57. 
Lepraha Jeffreysii, Norman, Proc. Roy. Soe. vol. elxxiii. p. 208. 
Lepralia trispinosa, Johnst., var., Hincks, Ann. Mag. Nat. Hist. ser. 4, 
vol, xix. p. 100, pl. xi. fig. 1. 
Smittia trispinosa, var. arborea, Levinsen, Bry. fra Kara-Havet, p. 320 
(16), pl. xxvii. figs. 7, 8. 
This form should at present be kept distinct, whether we call 
it 8. Jamellosa, or only a variety. In the Arctic region it seems 
usually to form erect tubular zoaria. The zocecia are nearly flat 
and the secondary aperture is not raised, the aperture having a 
quadrate appearance. ‘The avicularia are triangular, and are 
directed upwards, usually by the side of the aperture. The 
ovicells have sometimes a few large perforations as in 8. trispinosa. 
There are 17 tentacles and about 14 lateral rosette-plates. There 
are oral glands; and in the section cut it looks as though there 
were two pairs, one close up to the diaphragm and one connected 
with the tentacular sheath lower down. 
Loc. Spitzbergen (Smit); Greenland, 100 fath. (Worman & 
Sa eee 
