Arbacia. 



113 punctulata, Gray. 



114 pustulata, Gray. 

 Centrostephanus . 



115 longispinus, Pet. 

 Asthenosoma. 



1 16 hystrix, Wy. Thorn. 

 Strongylocentrotus . 



117 drobachiensis, Mull. 



118 pictus, Norman. 



119 lividus, Lamarck. 

 Sphaerechinus. 



120 granularis, Lamarck. 

 Echinus. 



121 esculentus, Lin. 



122 acutus, Lamarck. 



123 melo, Lamarck. 



124 microstoma, Wyv. Thorn. 



125 elegans, Dub. and Kor. 



126 gracilis, A. Agass. 



127 microtuberculatus, Bl. 



128 miliaris, Miill. 



129 norvegicus, Dub. and Kor. 

 Echinocyamus. 



130 pusillus, Miill. 

 Echinanthus. 



131 rosaceus. Lin. 

 Echinarachnius. 



132 parma, Lamarck. 

 Mellita. 



133 testudinata, Klein. 

 Pourtalesia. 



134 phiale, Wy. Thomson. 

 Spatangus. 



J 35 purpureus, Leske. 



135* Raschi Loven. 

 Echinocardium. 



136 cordatum, Pennant. 



137 flavescens, Miill. 



138 mediterraneum, Forbes. 



139 pennatifidum, Norman. 

 Brissopsis. 



140 lyrifera, L. Agass. 

 Aerope. 



141 rostrata, Wyv. Thorn. 

 Brissus. 



142 unicolor, Klein. 

 Schizaster. 



143 canalifer, L. Agass. 



144 fragilis, L. Agass. 



Moira. 



145 atropos, A. Agass. 



Order V. Holothuroidea. 



Cucumaria. 



146 cucumis, Risso. 



147 syracusana, Grube. 



148 tergestina, M. Sars. 



149 doliolum, Pallas. 



150 lactea, Forbes. 



151 Montagui, Fleming. 



152 frondosa, Gunner. 



153 brunnea, Forbes. 



154 Hyndmanni, Forbes. 



155 calcigera, L. Agass. 



156 minuta, Fabr. 



157 elongata, Dub. and Kor. 



158 Koellikeri, Semper. 

 Orcula. 



159 Barthii, Troschel. 

 Echinocucumis. 



160 hispida, Barratt, (=typica, M. Sars.) 

 Thyonidium. 



161 hyalinum, Forbes. 



162 productum, Norman. 



163 commune, Forbes and Good. 



164 Diibeni, Norman. 

 Thyone. 



165 fusus, Miiller. 



166 raphanus, Diib. and Kor. 



167 aurantiaca, Costa. 



168 briareus, Selenka. 

 Phyllophorus. 



169 urna, Grube. 



170 granulatus, Grube. 

 Psolus. 



171 phantapus, Strussenf. ' 

 Lophothuria. 



172 Fabricii, Diib. and Kor. 



173 squamata, Keren. 

 Holothuria. 



174 tremula, Gunner. 



175 intestinalis, Ascanius. 



176 Polii, Del Ch. 



177 impatiens, Forskal. 



178 Stellati, Del Ch. 



179 tubulosa, Gmel. 



1 80 Sanctori Del. Ch. 

 Stichopus. 



181 regalis, Cuv. 



182 natans, M. Sars. 



