266 Part IIL.—Tenth Annual Report 
posteriorly in the median dorsal line into more or less sharp tooth-like 
processes. The. posterior pleopods have the outer ramus much shorter 
than the inner. | 
The name Luthemisto was established by Dr Bovalliuas in 1887 
to replace Z’hemisto, Guierin (1828), which was pre-occupied. Professor 
G. O. Sars describes three species of Huthemisto as belonging to the 
Norwegian Fauna. | 
Rev. Mr Stebbing suggests that the Lestrigonus spinidorsalis, Spence 
Bate, from the Aberdeenshire coast, and recorded in the Annals and Maga- - 
zine of Natural History for May 1878, is the Euthemisto compressa (Goes). 
There seems to be little doubt that Mr Stebbing’s suggestion is correct. 
ZOANTHARIA. 
Cerianthus lloydit (Gosse). 
Habitat.—Off St Monans, in about 14 fathoms water; bottom clean, 
but not very fine sand. Fragments consisting of the head and tentacles 
of this sea anemone have been obtained on one or two occasions among sand 
dredged at the locality mentioned. I have obtained the same species at 
extreme low water in Rothesay Bay near the Royal Aquarium, but in this 
case also it was only the head part. The difficulty of capturing a whole 
specimen is indicated by the following remarks of Mr Robertson of 
_Millport—‘ It must be approached with the greatest caution, and a spade 
‘or other such implement placed in the gentlest manner 4 or 5 inches 
‘from the spot where it is, and when all is ready, drive the spade suddenly 
‘in beneath it, cutting off its escape by passing through the tube. Ii the 
‘ animal takes the alarm before the thrust is made, I should say, speaking 
‘from my own experience, that it is almost hopeless to follow up the 
‘ pursuit.’* The one or two fragments obtained off St Monans evidently 
show that the dredge in passing through the sand had come upon. the 
creatures unawares and cut their heads off. - 
ADDITIONAL NotTES. 
Inchomolgus agilis, n. sp. 
A species of Lichomolgus, apparently new, and of which a description 
with figures is being prepared for publication by my son, Andrew Scott, 
and myself, has been found living inside the siphons, and between the 
branchial folds and the body of the common cockle (Cardium edule). My 
son first discovered the Lichomolgus a short time ago, while examining 
some cockles from Morecambe Bay, Lancashire ; more recently we have 
obtained the same Copepod also in specimens of the common cockle from 
the neighbourhood of Cramond Island, Firth of Forth. This Copepod ‘ 
agrees with Lichomolgus litoralis and one or two others in having the ue 
inner branches of the first four pairs of swinging feet all three-jointed, 
but differs from any species known to us in several important points. It 
is very active (hence the specific name we have provisionally adopted) 
and transparent. If a cockle be opened in such a way that a portion of 
the contained water will remain within the hollow of the opened valves 
of the sheli, specimens of the Luchomolgus may be observed darting 
hither and thither with great rapidity, their presence being in many cases — 
only rendered apparent by the dark coloured line of the alimentary tract. eh 
The ovisacs are very large—about half the length of the animal; the oe 
* ‘On the Sea Anemones of the Shores of the Cumbraes’ (Proc. Nat. Hist, Soc. 
of Glasgow, vol. ii. pp. 24-80). On 
& 
