NUDIBRANCHIATA. 277 



Genus CALLIOPiEA. 

 C. bifida, Mont. 



An individual of this species, taken by Mr. Getty and Mr. Hyndman 

 Avhen dredging in Belfast Bay, was brought to me. It agrees critically 

 with Montagu's description, except in the following points. There 

 are just twelve ap])endages on each side, three of which are larger than 

 the rest, but placed at unequal distances from each other on both sides, 

 and not opposite, as shoMn in jNIontagu's figure. The colour is better 

 defined than in the figure ; the marginal line, whence the appendages 

 issue, is strongly marked and reddish, as they likewise are ; foot plain 

 flesh-colour. 



The animal is extremely agile, and, jj/«?ifl/'(V/-like, is one moment twice 

 the length it is the next ; it often moves about with the foot upwards, 

 and in its motion several times had the long tail thrown quite under the 

 head. 



Genus EoLis. 

 E. 2ictpUhsa, Johnst. 



Of this fine species, three individuals were found by Dr. Lloyd (of Ma- 

 lahide) and mjself, under stones at Lambay Island, on the 1st of June ; 

 at the same time their spawn, just as described and figured by Dr. John- 

 ston in Mag. N. H. as above-cited, Avas obtained. One of these animals 

 examined critically had 25 lateral rows of branchial j^rocesses, and about 

 12 of these to each row. 



E. Zetlandica, Forbes. 



July 29th, 1840. — This species was taken by Professor Forbes and my- 

 self, between tide-marks, at Lahinch, County Clare. 



E. Cuvierii. 

 Among the Nudibranchia which I owe to the kindness of Professor 

 AUman, was a small individual of this species, taken by him at Court- 

 masherry Harbour, in the autumn of 1838. 



E. coronata, Forbes. 

 At Glandore Bay, found to be common at ]\Ialahide, by INIr. Alder and 

 Dr. Farran. 



E. jyalUda, Aid. and Hanc. 

 . A single example taken at Malahide with the preceding. 

 E. alba, Aid. and Hanc. 

 Dublin Bay, Messrs. Alder and Hancock. 



E. Favrani, Alder and Hancock. 



Dredged at Malahide, Messrs. Alder and Farran. 

 E. violacea. Alder and Hancock. 



Mr. Hyndman, when dredging on the 26th August last, oft" Castle Chi- 

 chester, Belfast Bay, in 6 to 10 fathoms water, captured a sjiecimon of 

 this very beautiful Eolis. It was brought to me alive, and immcdiatel}- 

 afterwards despatched by ])ost in a ])hial of sea-water to Newcastle, for' 

 Mr. Alder's examination in a living stale, but on reaching its destiiuition 

 was unfortunately dead. Mr. Alder remarked, that it was a very fine 

 example of his E. violacea, which was described from a Cullercoats spe- 

 cimen smaller and less perfect than this had been. 



