246 REFERENCE TO PLATES. 
PLATE 33. 
FIGURE, PAGE, 
20-22. Tethys leporina Linné.. After Rang,....... 72 
23. Tethys leporina Linné, radula. After Mazzarelli,. . . . 72 
24. Tethys leporina Linné, opaline gland. After Blochmann, 72 
25. Tethys depilans L.,opaline gland. After Blochmann,. . 69 
26-29. Tethys marmorata Blainv. After Rang,. ..... 74 
Puare 34. 
1-5. Dolabrifera fusca Pse. Amer. Journ. Conch... . . 122 
6-8. Dolabrifera tahitensis Pse. Amer. Journ.Conch,. . . 121 
9,10. Dolabrifera sowerbyi Guild. C.Icon,..... .. .126 
11-16. Dolabrifera dolabrifera Cuv. After Rang,. . . . . 118 
17. Dolabrifera ascifera Rang. C. Icon., . ree es 
18. Dolabrifera pacifica Pse. C. Icon, . 4 oe poems 
19, 20. Dolabrifera ascifera Rang. After Rang,. . . .. . 124 
91, 22. Dolabrifera marmorea Pse. ©. Icon.,) . ..) eee 
23,24. Dolabrifera vitrea Sowb. C.Icon.,. ...... .121 
95. Dolabrifera olivacea Pse. ):‘C. Icon... .7. 2 . > 2 =e 
26,27. Dolabrifera maillardi Dh. Moll. Réunion,. . . . . 119 
28. Dolabrifera cuvieri Ads. Gen. Rec. Moll,. . ... .118 
29. Dolabrifera ascifera Rang. After Rang,.. . ... . 124 
PLATE 309. 
30, 31, 32. Tethys willcoxi Heilprin. Pilsbry,del,.... . 80 
33, 35. Tethys equorea Heilprin. Pilsbry, del.,. . . . - 9.) a7 
84. Tethys equorea Heilprin. After Heilprin,. ..... @7 
36. Tethys guadaloupensis Sowb. C.Icon,. ....... 79 
PLATE 36. 
1, 2. Phyllaplysia lafonti Fisch. Journ. de Conch... . . 133 
3. Petalifera ornata Desh. Tr. Elem.Conch.,.... . . 1380 
4-7. Petalifera punctulata T.C. Voy. Magenta,. . . . . 131 
9,10. Petalifera webbii (=virescens Risso). Mag. Zool., . 129 
11,12. Petalifera brugnatellii B. &-R. Mag. Zool... . . . 180 
13, 14. Phyllaplysia depressa Cantr. Mal. Médit,. . . . . 184 
PLATE, 37. 
15-19. Tethys floridensis Pils: Pilsbry, del, << <2) yim 
20-22. Tethys protes Rang. After Rang,. . ."- 73s 
23-25. Tethys parvula (Guild) Mérch. Pilsbry, del.,. . . 88 
PLATE 38. 
1,2. Tethys melanopus‘Crouch. P2Z.S:, 5 22-5 eee 
3-5. Tethys braziliana Rang. After Rang,. ....... 82 
