EOLIDIDiE. 



E. olivacea. Lingual plate a widish arch, with 13 strong, rather diverging, slightly curved denticles, 

 the central one scarcely stronger than the rest. 57 plates ; pale yellow. Tongue tapering a 

 little. 0-1-0. Fig. 20 ; and Fam. 3, PL 7, fig. 8. 

 E. aurantiaca. Lingual plate a broad arch, with 6 strong, straight, rather distant denticles or spines. 



Upwards of 80 plates ; almost colourless. Tongue tapering very much. 0-1*0. Fig. 21. 

 E. pustulata. Lingual plate a slender, subangular arch, straight at the sides, with 9 large denticles ; the 



central one stouter, but scarcely more prominent than the rest. About 23 plates. 0-1-0. 



Fig. 22. 

 E. amcena. Like the last, with the denticles less curved, 11 in number. 20 plates. Tongue tapering 



very little. 0-1 -0. Fig. 23. 

 E. Glottensis. Lingual plate a broad, rounded arch, with 11 strong, straight denticles, the central 



one not much larger than the rest. 54 plates ; pale yellow. Tongue tapering very 



little. 0-1-0. 

 E. viridis. Like the last, with the lingual arch more slender, and the denticles rather larger, 5 or 6 on 



each side. 36 plates; pale yellow. Tongue tapering very slightly. O'l'O. Fig. 24. 

 E. vittata. Central plate rather broad and angulated, with the apical spine prominent, and 3 or 4 



straight, largish, diverging denticles on each side j a separate, plain, triangular spine on each 



side. 67 rows ; pale straw-coloured. 1*1'1. Fig. 25. 

 E. exigua. Like the last, but with the central plate and lateral spines rather narrower. 40 plates ; 



pale yellow. Tongue tapering to a fine point. 1-1-1. 

 E. tricolor. Central plate angulated, rising to an obtuse spine at the apes, the marginal denticles 



very stout, 4 on each side ; the 2 lateral spines slender, smooth. About 70 plates j pale 



straw-coloured. 1-1-1. Fig. 26. 

 E. amethystina. Like the last, but with the denticles rather longer, and not quite so stout. 62 plates ; 



pale yellow. Tongue tapering very slightly. 1-1-1. 

 E. Farrani. Like E. tricolor, but with the denticles more slender, 5 on each side ; the lateral spines 



larger and broader. 1-1-]. Fig. 27. 

 E. picta. Like E. tricolor, but with the central plate more slender and pointed, the apex more promi- 

 nent, and the denticles longer, and more slender, 4 on each side. Lateral spines small. 



(Number of rows not determined.) Pale straw-coloured. 1-1-1. 

 E. despecta. Lingual plate rather broad, with a strong apical spine, and 6 delicate, short, curved 



denticles on each side ; no lateral spine. 22 plates ; amber- coloured. Tongue tapering 



conspicuously. 0-1-0. Fig. 28. 

 Embletonia pulchra. Lingual plate narrow, arched at the sides and produced into a prominent point 



in the centre, with small lateral denticles.* 60 plates. 0-1-0. Fam. 3, PL 38, figs. 5, 6. 

 E. pallida. Lingual plate evenly arched, broad at the base, with the central denticle or spine slightly 



prominent, and 6 or 7 well-defined, rather slender, curved denticles on each side. 31 plates ; 



almost colourless. Tongue tapering gradually. O'l'O. Fig. 29. 



Sub-Fam. Hermceince. 



Fiona nobilis. Lingual plate a broad arch, with a strong, prominent, central spine, and 6 stout, 

 strongly curved denticles on each side. 33 to 40 plates • orange or amber-brown. Tongue 

 tapering slightly. O-1'O. Fig. 30; and Fam. 3, PL 38 a, fig. 7. 



* These have not been represented on the figure ; the magnifying power used at the time being 

 insufficient to show them. 



