TABLE OF CONTENTS. 



Page 



Introduction 9 



Scyphomedusae 13 



Charybdeida 15 



Charybdeidae 15 



Charybdea Peron et Lesueur .... 15 



Charybdea rastonii Haacke .... 17 



Coronata 20 



Periphyllidae -3 



Periphylla Steenstrup 24 



Periphylla hyacinthina Steenstrup . 26 



Periphyllopsis Vauhoffeii 27 



Periphyllopsis braueri Vaiilioffen . 28 



Atorellidae 30 



Atorella Vanhoffen 30 



Atorella vanhoffeni, sp. nov 30 



Ephyropsidae 33 



Nausithoe Kolliker 33 



Nausithoe punctata Kolliker ... 35 



Nausithoe rubra Vanhoffen .... 36 



Atollidae 37 



AtoUa Haeckel 37 



Atolla wyvillei Haeckel 39 



Discophora 41 



Pelagia Peron et Lesueur 41 



Pelagia panopyra Peron 43 



Poralia Vanhoffen 44 



Poralia rufesceus Vauhdlfen .... 46 



Craspedotae 47 



Narcoiuedusae 47 



Cunanthidae 60 



Cunoctantha Haeckel 51 



Cunoctantha octonaria McCrady . . 52 



Cunoctantha tenella, sp. nov. ... 64 



Cunina Eschscholtz 65 



Cunina globosa Eschscholtz .... 57 



Cunina peregrina, sp. nov 59 



Cunina species? 62 



Sohuissus Haeckel G."> 



Solraissus marshalli Agassiz and 



Mayer 04 



Fagb 



Solmissus incisa Fewkes 67 



Aeginidae 70 



Aegina Eschscholtz 72 



Aegina citrea Eschscholtz .... 73 



Aegina alternans, sp. nov 74 



Solmundella Haeckel 75 



Solmundella biteutaculata Quoy et 



Gaimard 77 



Aeginura Haeckel 78 



Aeginura grimaldii Maas 80 



Solmaridae 81 



Pegantha Haeckel 83 



Pegantha martagon Haeckel .... 83 



Pegantha triloba Haeckel 87 



Pegantha smaragdina, sp. uov. . . 90 



Development of Pegantha smaragdina 93 



Pegantha laevis, sp. nov 97 



Trachomedusae 100 



Petasidae 101 



Gossea L. Agassiz 103 



Gossea brachymera, sp. nov. . . . 103 



Gonionemus A. Agassiz 105 



Gonionemus suvaensis Agassiz and 



Mayer 107 



Olindias F. Mliller 108 



Olindias singularis Browne .... 109 



Geryonidae Ill 



Liriope Lesson . Ill 



Liriope tetraphylla Chamisso . . . 112 



Liriope species? 115 



Geryonia Peron et Lesueur .... 116 



Geryonia proboscidalis Forskal , . . 116 



Trachynemidae 117 



Aglaura Peron et Lesueur 117 



Aglaura hemistoma Peron et 



Lesueur • 119 



Aglantha Haeckel 121 



Aglantha digitale var intermedia, 



var nov 122 



Tetrorchis, srvn. miv 123 



