Beaumont — Fauna and Flora of Valencia Harbour, Ireland. 837 



and of an example with pale tipped papillse present no appre- 

 ciable difference. In both, the teeth have the characteristic 

 shape shown in Alder and Hancock's figure (pi. 47, fig. 17), 

 but there are several very minute denticles present, between the 

 large denticles, which are not shown in the figure. 



Bergh places this species provisionally in the genus Cuthona. 

 Its foot is very wide in front, but it has not the wide head of 

 th.e latter genus, the most notable external character of Cuthona 

 nana and C. Peachii ; and its radula is very different. Its penis 

 and otocysts are similar to those organs in Cavolina amcena and 

 C. olivacea as already stated. 



Cavolina amcena, A. & H. 



JEolis ( Cavolina) amcena, A. & H. 



Cratena amoena, Bergh. 



ISTot uncommon in Valencia Harbour on both shell-beds and 

 Ascidian ground. 



Cavolina olivacea, A. & H. 



Eolis ( Cavolina) olivacea, A. & H. 



Cratena olivacea, Bergh. 



Dredged not infrequently on the same grounds as the last 

 species. Several were also found on the bottom of one of the 

 hulks. 



Genus — Amphoeina. 

 Amphorina ccerulea (Montagu). 



JEolis [Galvina) ccerulea, A. & H. Monograph (Appendix, p. 11) ; 

 and Ann. & Mag. ]N"at. Hist., series 3, vol. v., 1860. 



(?) ^o/^s molios, Herdman. Proc. Boy. Phys. Soc, Edinb., vol. vi., 

 1881. 



Found on most of the dredging grounds of Valencia Harbour, 

 but not abundant. The description of the papillae in this 

 species given by Alder and Hancock (loc. cit.) is wanting in 

 the accuracy usual with those authors. They say, " central 

 gland . . . green below and dark-blue above ; outer surface of 

 the papilla above pale blue, below pale green ; a few yellow 

 freckles in front ; tips strongly capped with orange red, banded 

 below with a ring of bright yellow ; extreme points colourless 



