EOLis. 595 



Laiidsborough, Jun.) ; Isle of Man (Alder). It inhabits 

 the Scandinavian seas. 



10. E. ELEGANs, Alder and Hancock. 



Ann. Nat. Hist. vol. xvi. p. 316, and Monog. part 5, fam. 3, pi. 17, 

 f5gs. 2, 3, 4. 



Body (half an inch long) linear-lanceolate, yellowish- 

 white. Dorsal tentacles rather short, strong, wrinkled, 

 fawn-coloured ; oral ones twice as long, simple, marked, 

 and connected by a white line. Branchiae numerous, 

 linear, rosy, white-tipped, brown at each end of the red 

 portions ; arranged on each side in about seven dense, 

 approximated clusters. Foot with produced angles. 



In fifteen fathoms off Berry Head, Torbay (A. and H.). 



11. E. sMARAGDiNA, Aider and Hancock. 



Monog. part 5, fam. 3, pi. 17, fig. 1. 



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

 cles large, smooth ; oral ones equal, simple. Branchiae 

 long, somewhat clavate, green centrally, with pellucid tips, 

 arranged on each side in five rather distant clusters. 

 Angles of foot produced. 



In the littoral zone at Whitley, Northumberland (A. 

 and H.). 



12. E. GRACILIS, Alder and Hancock. 



Ann. Nat. Hist. vol. xiii. p. 166. 



Body (half an inch long) very slender, white. Dorsal 

 tentacles very long, linear, opake white above ; oral ones 

 as long. Branchiae long, slender, ginger- orange, with a 

 minute white ring near their tips, ranged in four or five 



