266 Part III. — 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 Euthemisto was established by Dr Bovallius in 1887 

 to replace Themisto, Guierin (1828), which was pre-occupied. Professor 

 G. O. Sars describes three species of Euthemisto as belonging to the 

 Norwegian Fauna. 



Kev. 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. 



Oerianthus lloydii (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 Eothesay Bay near the Eoyal 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 Eobertson 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 

 1 from the spot where it is, and when all is ready, drive the spade suddenly 

 1 in beneath it, cutting off its escape by passing through the tube. If the 

 1 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 

 1 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 Notes. 



Liehomolgus agilis, n. sp. 



A species of Liehomolgus, 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 Liehomolgus 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 Liehomolgus litoralis and one or two others in having the 

 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 shell, specimens of the Liehomolgus 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. 

 The ovisacs are very large — about half the length of the animal ; the 



* ' On the Sea Anemones of the Shores of the Cumbraes ' (Proc. Nat. Hist. Soc. 

 of Glasgow, vol. ii. pp. 24-30). 



