[Antarctic Research Series] Biology of the Antarctic Seas VI Volume 26 ||

About The ProductPublished by the American Geophysical Union as part of the __Antarctic Research Series__. Species in the genera __Hyarachna, Echinozone, Pseudarachna, and Aspidarachna__, all in the family Hyarachnidae, are reviewed and critically discussed. A key to genera is presented along with a table of the species in each genus from antarctic waters. The genus __Echinozone__ is redefined on new specimens from Anvers Island. A summary of each species in __Echinozone__ is included, and the genus is redefined. __Pseudarachna__ is briefly discussed, and a second species is added to the genus. In the family Janiridae, __Notasellus__ and __Austrofilius__ are brought out of synonymy on the basis of specimens from Anvers Island, and the species of __Iathrippa__ and __Neojaera__ are discussed with a critical review of each species. The genera __Nostasellus__ and __Austrofilius__ are redefined. __Ectias__ is redefined on specimens of the type species from Anvers Island, and a species from South Africa is added to the genus. Maps of the distribution of many of the species are included. Content: FAMILY ILYARACHNIDAE......Page 11 REFERENCES......Page 43 MATERIAL AND METHODS ......Page 46 KEY TO GENERA OF THE FAMILY ONCAEIDAE IN THIS STUDY......Page 47 KEY TO SPECIES OF ONCAEA FEMALES IN THIS STUDY......Page 49 KEY TO SPECIES OF CONAEA FEMALES......Page 95 REFERENCES ......Page 104 CHECKLIST OF SOUTHERN OCEAN MOLPADIIDA ......Page 106 KEY TO SOUTHERN OCEAN GENERA OF FAMILY MOLPADIIDAE......Page 107 KEY TO SOUTHERN OCEAN REPRESENTATIVES OF MOLPADIA......Page 109 KEY TO SOUTHERN OCEAN SPECIES OF PARACAUDINA......Page 128 STATION DATA ......Page 129 REFERENCES ......Page 131 INTRODUCTION ......Page 133 RESULTS ......Page 134 KEY TO SPECIES......Page 136 Family EUPHROSINIDAE Williams, 1851......Page 145 KEY TO SPECIES......Page 146 Family HELMETOPHORIDAE n. fam.......Page 152 Family HESIONIDAE Malmgren, 1867......Page 153 KEY TO SPECIES......Page 156 KEY TO SPECIES......Page 157 KEY TO SPECIES......Page 158 KEY TO SPECIES......Page 159 KEY TO SPECIES......Page 160 KEY TO SPECIES......Page 162 KEY TO SPECIES......Page 163 KEY TO SPECIES......Page 164 KEY TO SPECIES......Page 165 Family APISTOBRANCHIDAE Mesnil and Caullery,1 898......Page 167 KEY TO SPECIES......Page 169 KEY TO SPECIES......Page 171 KEY TO SPECIES......Page 172 KEY TO SPECIES......Page 175 KEY TO SPECIES......Page 183 KEY TO SPECIES......Page 185 KEY TO SPECIES......Page 190 KEY TO SPECIES......Page 193 KEY TO SPECIES ......Page 196 KEY TO SPECIES......Page 198 Family TEREBELLIDAE Malmgren, 1867......Page 206 KEY TO SPECIES......Page 207 KEY TO SPECIES......Page 210 KEY TO SPECIES......Page 216 STATION LIST......Page 217 APPENDIX 1: STATION LOCATIONS......Page 225 APPENDIX 2: BIOLOGICAL RESULTS......Page 226 REFERENCES......Page 227 INTRODUCTION ......Page 232 SYSTEMATIC DISCUSSION......Page 233 REFERENCES......Page 243 INTRODUCTION......Page 244 REFERENCES ......Page 261 About The Product Published by the American Geophysical Union as part of the Antarctic Research Series . Species in the genera Hyarachna, Echinozone, Pseudarachna, and Aspidarachna , all in the family Hyarachnidae, are reviewed and critically discussed. A key to genera is presented along with a table of the species in each genus from antarctic waters. The genus Echinozone is redefined on new specimens from Anvers Island. A summary of each species in Echinozone is included, and the genus is redefined. Pseudarachna is briefly discussed, and a second species is added to the genus. In the family Janiridae, Notasellus and Austrofilius are brought out of synonymy on the basis of specimens from Anvers Island, and the species of Iathrippa and Neojaera are discussed with a critical review of each species. The genera Nostasellus and Austrofilius are redefined. Ectias is redefined on specimens of the type species from Anvers Island, and a species from South Africa is added to the genus. Maps of the distribution of many of the species are included. Content: Species of Asellotes (Isopoda: Paraselloidea) from Anvers Island, Antarctica / George A. Schultz -- Twenty-Six Species of Oncaeidae (Copepoda: Cyclopoida) from the Southwest Pacific-Antarctica Area / Gayle A. Heron -- Molpadiid Sea Cucumbers (Echinodermata: Holothuroidea) of the Southern Atlantic, Pacific, and Indian Oceans / David L. Pawson -- Polychaeta from the Weddell Sea Quadrant, Antarctica / Olga Hartman -- Marine Nematodes of the Order Desmoscolecida from Mcmurdo Sound, Antarctica / R.W. Timm -- A Redescription of the Marine Nematodes of Shackleton's British Antarctic Expedition of 1907-1909 / R.W. Timm