20 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.64. 



Platycheiron. — T. Scott, Tenth Annual Report Fishery Board of Scotland, 

 1892, p. 153. A synonym of Hemicyclops. 



Pontopolites. — T. Scott, Twelfth Annual Report Fishery Board of Scotland, 

 1894, p. 251. A valid genus. 



Pseudotachidius. — T. Scott, Sixteenth Annual Report Fishery Board of 

 Scotland, 1898, p. 267. A valid genus. 



Pseudowestivoodia. — T. Scott, Twelfth Annual Report Fishery Board of Scot- 

 land, 1894, p. 257. A synonym of Parawestwoodia. 



Pupulina. — P. J. van Beneden, Bulletin de I'Academie royale de Belgique, 

 series 3, vol. 24, 1892, p. 254. A synonym of Lepeophtheirus. 



Ratania. — Giesbrecht, Fauna und Flora des Golfes von Neapel, 19th mono- 

 graph, Copepoda, 1892, p. 83. A valid genus. 



Schisoproctus. — Aurivillius, Ur Vega Expeditioneris Vetenskapeliga lakt- 

 tagelser, Stockholm, 1885, vol. 4, p. 246. A synonym of BotryllopJiilus. 



Scaphocalanus. — Sars, Norwegian North Atlantic Expedition, Scientific Re- 

 sults, vol. 5, 1900, p. 36. A synonym of Amallophora. " 



Seridinm. — Giesbrecht, Mitteilungen a us der Zoologischer Station zu Neapel, 

 vol. 12, 1897, p. 223. A valid genus. 



Sestropontius. — Giesbrecht, Fauna der Station Neapel, vol. 25, 1899, p. 107. 

 A valid genus. 



Sphaerifer. — Richiardi, Atti della Societa Toscana di Scienze Naturali, vol. 

 2, 1876, p. 99. A valid genus. 



Sijnestius. — Steenstrup and Liitken, Kongelige Danske Videnskabernes 

 Selskabs Skrifter, ser. 5, vol, 5, 1861, p. 364. A valid genus. 



Taphrobia. — Cornalia, Atti della Societa Italiana de Scienze Naturali, vol. 

 18, 1875, p. 197. A synonym of Peroderma. 



Temorites. — G. O. Sars, Norwegian North Polar Expedition, Scientific Re- 

 sults, vol. 5, 1900, p. 100. A valid genus. 



Thaumatoessa. — Hesse, Annales des sciences naturelles, ser. 5, vol. 9, 1868, 

 p. 54. Twice preoccupied and hence changed to Thaumatohessia by Giard 

 in 1900. 



Thaumatohessia. — Giard, Bulletin de Societe Entomologique de France, 1900. 

 p. 395. A valid genus. 



Thysanote.—Kr0yer, Naturhistorisk Tidsskrift, ser. 3, vol. 2, 1863, p. 288. A 

 valid genus. 



Trophonophila. — Mcintosh, Scientific Results, Challenger Expedition, vol. 12, 

 1885, p. 368. A valid genus. 



Trypaphylum. — Richiardi, Atti della Societa Toscana, Process! Verbali, vol. 

 1, 1878, p. XX. A valid genus. 



Undinella. — G. O. Sars, Norwegian North Polar Expedition, Scientific Re- 

 sults, vol. 5, 1900, p. 52. A valid genus. 



Undinopsis. — G. O. Sars, Schneider's Report of Invertebrates from the Kvae- 

 nangen Fjord, 1884, p. 131. A valid genus. 



CORRECTIONS AND ADDITIONS TO THE LISTS OF THE NOMEN- 



CLATOR AND INDEX. 



Achiheres Nordmann 1832 Date supplied. 



Aenippe Philippi 1843 Date supplied. 



Aethon Kr0yer 1837 Date supplied. 



Anchorella Cuvier 1830 Date supplied. 



Anthosoma Leach 1816 Date supplied. 



Anuretes Heller 1865 Spelled Anuretus in nomenclator. 



Aplopodus Hesse 1870 Spelled Aplopode in nomenclator. 



Arpacticus M. Edwards 1840 Spelled Arpactes in nomemclator. 



