50 eolididjE. 



27. E. amcena, Alder and Hancock. 



E. amczrta, A. & H. in Ann. N. H. 1st eer. xvi p. 316 ; Brit. Nud. Moll, 

 fam. 3, pi. 20. 



Body greenish-white, with brown markings and white spots : 

 dorsal tentacles long, transparent, greenish-white, with white 

 spots : oral tentacles about half the length of the dorsal pair, 

 and similarly banded : branchial processes yellowish-green or 

 olive, spotted with yellowish-white, often having a brownish 

 base and two or three bands of brown spots above; tips 

 transparent ; they are set in 8 distant rows, the anterior close 

 together, the others more distant : foot rather narrow, the 

 anterior angles very little produced and slightly rounded. 

 L. 0-3. 



Habitat : Dredged in Torbay and Fowey Harbour ; not 



uncommon in the latter place (Alder). [Cumbrae, rare 

 (Eobertson).] 



This pretty little species may be known from its congeners, 



E. viridis and E. Northumbrica, by its brown markings, and 



especially by the brown rings on the tentacles ; the green is 



also more or less yellowish or olive. 



28. E. Northum'brica, Alder and Hancock. 



E. Northumbrica, A. & H. in Ann. N. H. 1st eer. xiii. p. 165 ; Brit. Nud. 

 Moll. fam. 3, pi. 31. f. 2, 3. 



Body rather slender, of a delicate greenish white : dorsal 

 tentacles moderately long, white and strongly wrinkled above, 

 with the apices truncated : oral tentacles nearly as long as the 

 dorsal pair, white and obtuse at the tips : branchial processes 

 stout and subclavate, of a cold bluish green, with white tips, 

 set in 9 rather distant rows: foot with the anterior angles 

 blunt and a little produced. L. 0-25. 



Habitat: On a Coralline from the fishing-boats, Culler- 

 coats (Hancock); rocks at the same place (Norman and 

 Mennell). 



