ILLUSTRATIONS 



PLATES 



Following 

 page 



1. Sijrrhopus smithi, new species 46 



2, 3. Hyla dendroscarta, new species 46 



6. Haliotis sorenseni, new species 58 



7. Haliotis ponderosa C. B. Adams 5S 



8. New species and subspecies of Haliotis 58 



9. Species and subspecies of OpistJiocoelium 385 



10. Species and subspecies of Torrella and Rhytidopoma 385 



11. Species and subspecies of Rhytidopoma and Opistho siphon 385 



12. Species and subspecies of Opisthosiphon 385 



13,14. Species and subspecies of Opisthosiplion {Bermudezsiphona) 385 



15. Species and subspecies of Opisthosiphon 385 



16,17. Species and subspecies of Opisthosiphon (Cubitasiphona) 385 



IS. Subspecies of Rhytidothyra bilahiata 385 



19. Species and subspecies of Xenopomoides, Xenopoma, Opisthosiphon, 



and Dallsiphona 385 



20, 21. Species and subspecies of Parachondria and Adamsiella 385 



22. Species and subspecies of Limadora, Limadorex, and Tudora 385 



23. Species and subspecies of Tudora (Eutudoi-ex) 385 



24. Species and subspecies of Tudora 385 



25. Species and subspecies of Tudora (Rarnsdenia) 385 



26. Species and subspecies of Tudora {Aguayotudora) 385 



27. Species and subspecies of Tudora 385 



28, 29. Species and subspecies of Tudora and Annularia 385 



30. Species and subspecies of /InxMtorto (Annularops) 385 



31. Ammlaria (Anmilarops) semicana semicana 385 



32. Species and subspecies of Annularia (Annularops) 385 



33, 34. Species and subspecies of Annularia 385 



35. Species and subspecies ot Annularia (Diplopoma) 385 



36. Subspecies of Anvularia (Annularita) majuscula 385 



37. Species and subspecies of Annularia 385 



38. Species and subspecies of Annularia (Troschelvindex) 385 



39. Species and subspecies of Annularia 385 



40,41. Species of Annularia (Annularisca) 385 



42. Subspecies of Annularia [Annularisca) auricoma 385 



43. Species of Annularia {Annularisca) 385 



44,45. Species of AwMMZana (Annularex) 385 



46. Species of Annularia {Bermudezia) 385 



47. Species and subspecies ot Annularia (Lugarenia) 385 



48. Subsi>ecies of Annularia (Annularosa) fragilis 385 



49-55. Species of Annularia (Annularella) 385 



58. Subspecies of Annularia (Annularella) mayariensis 385 



57. Species and subspecies of Annularia 385 



58. Crossaster squamatus (Doderlein) 433 



59. Leptasterias (Hexasterias) bartletti, new species 433 



VII 



