EOLis. 597 



15. E. PURPURASCENS, Fleming. 



Phil. Zool. vol. ii. p. 470, pi. 4, fig. 2, and Brit. Ann. p. 28G. 



Body (about an inch long) slender, pointed behind, 

 rounded in front, pink. Labial tentacles shorter than the 

 (linear) dorsal ones. Five bundles, each of three filiform 

 branchise, on each side. 



Frith of Tay (Fleming). An obscure species, requiring 

 re-investigation. 



16. E. ALBA, Alder and Hancock. 



Ann. Nat. Hist. vol. xiii. p. 164, and Monog. part 1, fam. 3, pi. 21. 



Body (half an inch long) linear, white. Dorsal tenta- 

 cles rather long, smooth, brown below, surrounded near 

 the slender tips by a bulbous ring ; oral ones longer, linear, 

 white. Branchise white, often with a greenish ring near 

 the tips, linear-oblong, ranged in five or six clusters on 

 each side, approximated dorsally, the first two of two 

 rows of six or seven papillae. Angles of foot greatly 

 produced. 



Shallow water and littoral zone. In the Frith of Clyde 

 and Dublin Bay (A. and H.). 



Section III. Oavolina. — Body lanceolate ; dorsal tenta- 

 cles smooth or wrinkled. Branchiae in transverse, generally 

 rather distant rows. Spawn of one or two coils. 



17. E. STiPATA, Alder and Hancock. 



Ann. Nat. Hist. vol. xii. p. 233. 



Body (one ([uarter of an inch long) rather broad, and 

 depressed, bright yellowish green. Tentacula short. 



