EOLIDIDiE. 



Herirusa bifida. Lingual plate with a cylindrical articulated base, and a large scooped spine or process, 



terminating in a blunt point. 49 rows; pale yellow. Tongue tapering to a point 



anteriorly. 0-10. Fig. 31. 

 H. dendritica. Like the last, but with the articulations rather shorter and the process more squared at 



the top. 40 to 45 rows. 0-1-0. Fam. 3, PI. 43, figs. 14, 15. 

 Alderia modesta. Lingual plate cylindrical (?), rather long, bearing a scoop or spine, broad and truncated 



at the upper end. 16 or 17 rows. Tongue linear, not tapering. 0-1-0. Fam. 3, PI. 43, 



figs. 17, 18. 



Sub-Fam. Proctonotincc. 

 Tongue broad. 

 Proctonotus mucroniferus. Lateral spines numerous, plain, simply hooked ; central spine inconspicuous 



or wanting. (The details in this species have been imperfectly made out.) Fam. 3, PI. 43, 



fig. 12. 

 Antiopa crislata. Lateral spines numerous, about 40 on each side, plain, slightly hooked and sharply 



pointed. Central spine not much smaller than the rest. 30 rows, sloping diagonally 



forward; deep amber-coloured, approaching purple-brown. 40'l-40. Fig. 32; and Fam. 3, 



PI. 43, figs. 5, 6, 7. 

 A. hyalina. Lateral spines 12 or 13 on each side, rather stout, plain, moderately hooked. Central 



spine small, plain. 10 or 12 rows, sloping a little backwards; almost colourless. 13-1-13. 



