EOLIS. 39 



or orange near the tip : foot with the anterior angles a little 

 produced. L. 0-7. 



Habitat : In tide-pools at Gwyllyn Yase, Falmouth (Cocks). 



Mr. Cocks met with this species in considerable numbers in 

 the summer of 1848; it was scarce in 1849, and we have no 

 record of its having since been found. E. Alderi bears some 

 resemblance to the last, but differs in size and colour. The 

 lingual plates have a similar character. 



B. Branchial processes clustered : dorsal tentacles laminated ; 

 angles of the foot produced : odontophore ivith a central 

 spine and lettered denticulations. (Facelina, A. Sf H.) 



4. E. corona'ta_, Forbes. 



E. coronata, Forb. in ' AtbeiicTum ' for 1839, No. G18, p. 647 ; A. & H. 

 Brit. Nud. Moll. fam. 3, pi. 12. 



Body slender, white tinged with fleshcolour : dorsal ten- 

 tacles yellowish, strongly annulated (with 7 or 8 rings) : oral 

 tentacles long and tapering : branchial processes rather long, 

 nearly linear, crimson, with a metallic lustre of blue on the 

 upper surface, and an opaque-white ring near the apex ; set 

 in 6 or 7 clusters on each side of the back : foot having its 

 anterior angles produced. L. 1. 



Habitat : On most parts of the British coast within tide- 

 marks and in the Laminarian zone ; not uncommon. 



This is one of the most beautiful species of a beautiful 

 genus [" the tiger of its tribe," Gordon]. The Doris longi- 

 cornis of Montagu and Eolida plumosa of Fleming are pro- 

 bably varieties of it. It does not appear to have been recog- 

 nized out of Britain. [W. Sweden (Loven) ; jS'orth of France 

 (Bouchard- Chantereaux and Fischer); E-ochelle (Aucapitaine).] 



5. E. Drummondi^ Thompson. 



E. Drummo7idi, Thomps. in Rep. Brit. Assoc, for 1843, p. 250; A. & H. 

 Brit. Nud. Moll. fam. 3, pi. 13. 



Body rather broad, especially towards the head, tapering 

 abruptly behind, fleshcoloured : dorsal tentacles longish, fawn- 

 coloured ; densely laminated (with 20 to 30 rings) : oral ten- 



