8 W. LlLLJEBORG, 



SEL DE VAUZEME; Order Cirrhipedia: Lepas LlN., Balanus LlN., Coro- 

 nula Lam., Verruca Schumacher. Of these genera only the Lithodes, An o- 

 nyx, Themisto and Glyptonotus are peculiar to the Zones in question. The 

 others are of a cosmopolitical nature, and are met with also in the temperate 

 and torrid Zones. This is partly the case with the genera Anomix and 

 Themisto, but the greatest number of the species in those genera as well as , 

 with respect to the first named genus, the greater plenteousness and larger 

 dimensions of the individuals, sufficiently indicate preference for the polar 

 seas and more especially the northern. The genus Atylus according to 

 Spence Bate l ) numbers 16 species. Of these 4 are from Greenland, Sweden 

 and Norway, 3 from England, 2 from Southern Europe, 1 from N. America, 

 1 from Valparaiso, 3 from Tierra del Fuego, 1 from the Cape of Good Hope 

 and one from New Holland. It belongs then more especially to the cold 

 & temperate waters, but is hoAvever in a very considerable degree of a 

 cosmopolitical nature 2 ). 



Of the 4 above-named distinguishing genera, Lithodes comprises 10 

 species, of which 6 are from the northern seas — North-Sea, N. Atlantic 

 and Icy Ocean and from the NE-coast of Asia — 1 from the eastern coast 

 of America, Lithodes australis Bell 3 ), and 3 from Tierra del Fuego and the 

 Antarctic Ocean; Anonyx about 28 species, of which 20 are from Green- 

 land, Sweden and Norway and England, 4 from the Eastern coast of N. 

 America, 3 from the seas of Nort-eastern Asia, and one from Tierra del 

 Fuego ; Themisto 5 species, of which 2 are from the Antarctic Ocean, 1 from 

 the southern part of the Atlantic & 2 from Greenland (S. Bate) ; and lastly 

 Glyptonotus 3 species, of which 2 are from the northern Icy Ocean and Baltic 

 and 1 from the southern Icy Ocean. The genus Lysianassa M. Edwards, of which 

 Spence Bate reckons 15 species, comes so near the genus Anonyx Kroyer, 

 that we as yet have no certain characteristics, by which these two genera 

 can be distinguished, and it is probable that Kroyer would not have set 

 up Anonyx as an separate genus, had he been aware that also the 2:d 



genus Sphaeroma, S. rugicauda Leach, which lists as yet never been discovered on 

 the western coast of Norway, but probably exists there. 



Whether the species of the genus Ipfrimedia found at Tierra del Fuego belong 

 reaally to that genus is not quite certain. 



M Catalogue of the specimens of Anipbipodous Crustacea etc. p 133. 



*) Atyhu axrimahu (FaBB.), which had previously only been found in Green- 

 land , we have met with at Molde and Cbristiansund in Norway :it a depth of 40 — 50 

 fathoms. 



5 ) British Stalk-Hyed Crustacea, p. Iti4. 



