430 
FIGURE. PAGE.’ 
4, Thecacera pennigera, Montagu. England, . 377 
5. Plocamophorus ocellatus, Ruppell. Red Sea, 378 
6, 7. ASgirus punctilucens, d’Orb. England, ; 378 
8. Ceratosoma cornigerum, Ad. and Reeve. Soolo Is., 378 
9. Trevelyana Ceylonica, Kelaart. Ceylon, . 378 
10. Goniodoris nodosa, Mont. Great Britain, . 319 
11. Idalia aspersa, Alder and Hancock. Great Britain, . 379 
12. Ancula cristata, Alder and Hancock. Great Britain, 380 
13. Polycera quadrilineata, Muller. Europe, 380 
14. Tritonia plebeia, Johnst. England, 381 
15. Tethys fimbriata, Linn. Mediterranean, . 381 
16. Seyllea pelagica, Linn. England, . 382 
17. Scyllea Grayi, Adams, . . 382 
18. Melibe rosea, Rang. Cape Good Hope, . 382 
PLATE 91. 
19. Melibe (Chirorza) leonina, Gould. Puget Sound, . 382 
20. Dendronotus arborescens, Mull. U.S8., Europe, . 382 
21. Lomanotus Genei, Verany. Mediterranean, . 382 
22. Bornella digitata, Adams. East Indies, . 383 
23. Proctonotus mucroniferus, Alder and "Hancock. Ire- 
land, : 383 
24. Antiopa spinole, Verany. Mediterranean, ‘ 383 
25, 26. Doto coronata, Gmel. United States, England, 383 
27. Doto (Gellina) affinis, d’Orb. Europe, 384 
23%. Glaucus radiatus, d’ Orb. Cuba, ‘ 384 
29. Glaucus (Laniogerus) Elfortii, Blainv., . 385 
30. AXolis (Facellina) coronata, Forbes. England, 385 
31. Molidia annulata, Quoy. New Guinea, 386 
32. Phidiana Inca, d’Orb. So. America, 385 
33. Favorinus albus, Alder. England, : 387 
34. Coryphella Landsburgi, Alder. England, 388 
35. Fiona nobilis, Alder and Hancock. England, 388 
36. Alderia modesta, Lovén. Northern Europe, 388 
37. Herma dendritica, Alder and Hancock. Europe, 389 
38. Embletonia pulchra, Alder and Hancock. England, . 389 
39. Tergipes despectus, Alder. England, 389 
4(. Elysia viridis, Mont. England, 390_ 
41. Placobranchus ocellatus, Rang. Europe, 391 
42. Limapontia cerulea, Quatrefages. Europe, 391 
43. Acteonia senestra, Quatrefages. Europe, 391 
44. Runcina Hancocki, Forbes. England, 367 
45. Cenia Cocksii, Alder and Hancock. England, 391 
46. Phyllidia trilineata, Cuvier. England, . 892 
47. Fryeria pustulosa, Ruippell. Red Sea, - 392 
48. Hypobranchiewa fusca, A. Ad. Yellow Sea, : 392 
49. Pleurophyllidia Cuvieri, Meckel. Mediterranean, . 392 
EXPLANATION OF PLATES. 
