EXPLANATION OF PLATES, XVII. 347 



FIGURE PAGE 



29-31. Neomenia dalyelli K. & D., 293 



32-35. Neomenia microsolen Wire"n, 293 



PLATE 42 (Neomenia), 



1, 2. Neomenia carinata, longitudinal and vertical sections, . 291 

 3-5. Neomenia carinata, side, ventral and dorsal views, natu- 

 ral size ; after Tullberg. Fig. 9, N. carinata, ventral view 

 of a living specimen ; after Hansen. Fig. 6, spine from 

 the ridge of the back, viewed from the grooved side, and 

 the same from the side (Tullberg) ; fig. 7, grooved spine 

 from side of the animal ; fig. 8, curved spine (Tullberg), . 291 

 Figs, below 6 and 7, Neomenia affinis. From Wire*n, . . 292 

 10. Neomenia grandis, natural size; figs. 11-14, spicules; figs. 



15, 16, anterior and posterior ends from below (Thiele), . 292 



PLATE 43 (Proneomenia). 



16, 20. P. sluiteri, natural size; figs. 18, 19, anterior and poste- 

 rior ends ; fig. 21, spicules; fig. 22, radula (from Hu- 



brecht), . .294 



23, 24. P. sluiteri var. langi, natural size (after Lang), . . 294 

 25-28. P. neapolitana (after Thiele). . . . 2: 6 

 29. P. sarsi (after Hansen), . . 297 



PLATE 44 (Rhopalomenia). 



30-32. R. gorgonophila (after Kow.), . .. . ... 298 



33-36. R. acuminata (after Wiren), ... , . 300 

 37-39. R. vagans (after Kow. & Mar.), . . . . . 299 



40-45. R. eisigi (after Thiele), . . . . . .300 



PLATE 45 (Rhopalomenia). 



46, 47, 53. R. aglaophenise (after Pruvot), . . . . 299 

 48-56. R. aglaophenise (after K. & M.), . . . . .299 



PLATE 46. 



57-59. Pruvotia sopita (after Pruvot), . , . . . 301 



60-63. Macellomenia palifera (after Pruvot), . < . . 302 



64-68. Dondersia festiva (after Hubrecht), . . . . 303 



69-73. Ichthyomenia ichthyodes (after Pruvot), . . . 305 



PLATE 47. 



74-77. Myzomenia banyulensis (after Pruvot), . .- . 304 



78-82. Nematomenia flavens (after Pruvot), . . ' . . 304 



83-87, 90. Paramenia impexa (after Pruvot), . . . 306 



88,89, 91-93. Paramenia pruvoti (after Pruvot), . . 307 



