430 EXPLANATION OP PLATES. 



4. Thecacera peiinigera, Montagu. England, . . . 37t 



5. Plocamophorus ocellatus, Riippell. Red Sea, . . 378 



6. T. -^girus punctilucens, d'Orb. England, . . . 318 



8. Ceratosoma cornigerum, Ad. and Reeve. Soolo Is., . 3t8 



9. Trevelyana Ceylonica, Kelaart. Ceylon, . , . 318 



10. Goniodoris nodosa, Mont. Great Britain, . . . 379 



11. Idalia aspersa. Alder and Hancock. Great Britain, . 319 



12. Ancula cristata. Alder and Hancock. Great Britain, . 380 



13. Polycera quadrilineata, Miiller. Europe, . . . 380 



14. Tritonia plebeia, Johnst. England, .... 381 



15. Tethys fimbriata, Linn. Mediterfanean, . . . 381 



16. Scyllsea pelagica, Linn. England, .... 382 

 1 1. Scyllsea Grayi, Adams, 382 



18. Melibe rosea, Rang. Cape Good Hope, . . . 382 



Plate 91. 



19. Melibe (Chirorsea) leonina, Gould. Puget Sound, . 382 



20. Dendronotus arborescens, Miill. U. S., 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 spinol*, Yerany. Mediterranean, . . . 383 



25. 26. Doto coronata, Gmel. United States, England, . 383 

 21. Doto (Gellina) affinis, d'Orb. Europe, . . .384 



28. Glaucus radiatus, d'Orb. Cuba 384 



29. Glaucus (Laniogerus) Elfortii, Blainv., .... 385 



30. JEolis (Facellina) coronata, Forbes. England, . . 385 



31. J^]olidia annulata, Quoy. New Guinea, . . . 386 



32. Phidiana Inca, d'Orb. So. America, .... 385 



33. Favorinus albus. Alder. England, .... 381 



34. Coryphella Landsburgi, Alder. England, . . . 388 



35. Fiona nobilis, Alder and Hancock. England, . . 388 



36. Alderia modesta, Loven. Northern Europe, . . 388 

 31. Hermasa dendritica. Alder and Hancock. Europe, . 389 



38. Embletonia pulchra, Alder and Hancock. England, . 389 



39. Tergipes despectus. Alder. England, . 



40. Elysia viridis, Mont. England, 



41. Placobranchus ocellatus, Rang. Europe, 



42. Limapontia caerulea, Quatrefages. Europe, , 



43. Acteonia senestra, Quatrefages. Europe, 



44. Runcina Hancocki, Forbes. England, . 



45. Cenia Cocksii, Alder and Hancock. England, 



46. Phyllidia trilineata, Cuvier. England, . 

 41. Fryeria pustulosa, Riippell. Red Sea, . 



48. Hypobranchia^a fusca, A. Ad. Yellow Sea, . 



49. Pleurophyllidia Cuvieri, Meckel. Mediterranean, . 392 



389 

 390 

 391 

 391 

 391 

 361 

 391 

 392 

 392 

 392 



