50 A MONOGRAPH OF THE 



15. E. carnea, A. and H. Flesh-coloured, slender; branchiae linear- conical, rose-coloured, set in 7 



clusters; tentacles rather long, of equal length, the dorsal pair dark olive-brown, paler 

 above, oral pair whitish; anterior angles of the foot much produced. Length \ inch. 

 Appendix (24), p. ix. 



**** Tentacles plain, small ; branchiae on footstalks. 

 Lingual plate with a small smooth (?) spine. 



16. E. glattcoides, A. and H. White, depressed; head small; tentacles small, smooth; branchiae 



linear, white, with yellowish tips, and a narrow, pale fulvous, central gland, set in 11 pedun- 

 culated clusters ; foot broad, with the anterior angles acute, short. Length \ inch. PI. 22, 

 figs. 1 — 4. 



Section 3. Branchiae in transverse, generally rather distant, rows. Angles of the foot short.* 

 Cavolina, Cuvier. 



* Branchiae in close transverse rows ; sides of the head produced ; angles of the foot 



rounded. Spawn a depressed semicircular mass. 

 Lingual plate with a large central spine and marginal denticles. 



17. E. Peachii, A. and H. Yellowish or flesh-coloured, sub depressed ; branchiae numerous, subcla- 



vate, yellowish-brown tipped with white, set in 20 rows ; dorsal tentacles rather long ; oral 

 tentacles shorter. Length § inch. PL 10, figs. 1 — 4. 



18. E. nana, A. and H. Yellowish-white, ovate-oblong; branchiae subclavate, rose-coloured, set in 8 



to 10 rows ; tentacles of moderate length. Length ± inch. PI. 25. 



** Branchiae in rather close rows ; angles of the foot variable. 

 Lingual plate denticulated, with the central spine not prominent. 



19. E. stipata, A. and H. Yellowish-green, ovate, subdepressed ; branchiae elliptical or subclavate, 



green, set in 9 or 10 rows, nearly, covering the back ; angles of the foot short. Length 

 iinch. PI. 22, fig. 5. 



20. E. angulata, A. and H. Pale orange, subangulated, depressed ; branchiae cylindrical, orange 



spotted with white, set in 10 or 12 rows ; dorsal tentacles short ; oral tentacles rather 

 longer; anterior angles of the foot much produced, pointed. Length ^ inch. PI. 23. 



21. E. inornata, A. and H. Pale fulvous, ovate, subdepressed; branchiae elliptic-cylindrical, fawn- 



coloured or reddish, spotted with brown and white, set in 9 rows ; tentacles short ; anterior 

 angles of the foot a little produced, pointed. Length -i inch. Appendix (25), p. ix. 



22. E. concinna, A. and H. Whitish ; branchiae purple-brown, with a metallic lustre, tipped with 



white, set in 9 or 10 rows ; tentacles smooth, the dorsal pair longest ; anterior angles of the 

 foot short. Length i inch. PI. 24. 



23. E. olivacea, A. and H. Yellowish-white, with opaque white spots ; a pink streak on each side of 



the head ; branchiae cylindrical, olivaceous, obscurely banded, set in 6 or 8 rows ; dorsal 



* We have adhered to the four sections given in our description of the genus, but the information 

 acquired since the period of its publication makes it necessary to subdivide them a little more. The 

 3d section is composed of rather heterogeneous materials, some of which scarcely agree with its general 

 character. This is more especially the case with the first division. 



