with descriptions of some new species of Invertebrata. 313 



Pohjcera punctilucens, D'Orbigny, Guerin^ Mag. Zool. 1837, p. 7. 

 pi. 106. 



Professor Allman obtained this Polycera in a pool at Courtmasherry 

 harbour, county Cork, in the month of August last. The species was 

 originally described from specimens taken on the coast of France ; 

 it has not yet been procured on that of Great Britain. The speci- 

 men was submitted to the judgement of Messrs. Alder and Hancock, 

 and will be fully noticed in their forthcoming work on the British 

 Nudibranchiate Mollusca. 



Eolis violacea, Alder and Hancock, Ann. Nat. Hist. vol. xiii. 

 p. 166 (March 1844). 



Mr. Hyndman, when dredging on the 26th of August last oft' Castle 

 Chichester, Belfast bay, in 6 to 10 fathoms water, captured a speci- 

 men of this very beautiful Eolis. It was brought to me alive, and 

 immediately afterwards despatched by post in a phial of sea- water to 

 Newcastle for Mr. Alder's examination in a living state, but on 

 reaching its destination was unfortunately dead. Mr. Alder re- 

 marked that it was a very fine example of his E. violacca, which 

 was described from a Cullercoats specimen smaller and less perfect 

 than this had been, 



Aplysia nexa, Thompson. Plate XIX. fig. 8. 



Animal elongate, deep carmine-red, mantle bordered with black. 



Length 1 inch ; much elongated ; foot very narrow ; two black 

 eyes anterior to, but a little distant from the base of the dorsal ten- 

 tacula. 



Colour deep carmine-red, occasionally with a few minute white 

 spots; mantle and anterior tentacula bordered with black, dorsal 

 tentacula tipped with black. 



Shell ? 



The specimen of this Aplysia was dredged on the 26th of August 

 1844, off Castle Chichester, Belfast bay, by Mr. Hyndman — depth 6 

 to 10 fathoms. 



The characters which this beautiful little Aplysia has in common 

 with A. depilans need not be given. Whether we consider it di- 

 stinct from, or a mere variety of that species, it differs from it in 

 being of a more elongate form, in colour, and in having the mantle, 

 &c. bordered with black. From a single example only I should not 

 venture to describe it as a distinct species, but on sending my spe- 

 cimen (its characters being first noted down) alive in sea- water to 

 Newcastle-upon-Tyne for Mr. Alder's examination, he replied, that 

 an Aplysia similar in form and colour had been taken by him at 

 Torbay in Devonshire about two years before, but not having had 

 much opportunity of studying the genus, he felt uncertain whether 

 it should be considered a variety of an -(4. depilans or a distinct spe- 

 cies. Neither do I feel certain on this point until an equally small 

 A. depilans be had for comparison, but it seems to me better to describe 

 and figure the form in question and leave the matter of species for 



Ann. ^ Mag. N. Hist. Vol. xv. Z 



