17 



Portiandia lucida. Luven. 



ToJdia lucida, Loven, Ind. Moll. Scaud., 184G, p. 4(). 



— — M. Sårs, Foss. Dyrelevninger, 1865, p. 08, Pl. o. figs. 87—91. 

 Leda — Jeffreys, Brit. Conch., vol. 5, 1869, p. 17/5, Pl. lUU, fig. 1. 

 Porthnidia Incida, G. O. Sårs, Moll. Reg. Aret. Norv., 1878, p. 37. Pl. 4. fig. 8 a — 1). 



Findested. Stationerne 10, 18, 101, 252, 253. 255, 

 257, 260, 261, 262. 326. 338. 357 og Sognefjord. 100 fv. 

 Dybde 100—412. 



Porfhindia lucida er almindelig langs hele den norske 

 kyst paa dyb over 2ii fv. Den er endvidere kjendt fra 

 Middelhavet, Kattegat. Skagerak og det nordlige af At- 

 lanterhavet med tilstødende dele af Ishavet ; artens nord- 

 grænse er ved Spitsbergen, sydgrænseii ved Gibraltar. 

 Paa den amerikanske side gaar den fra JNlelville Bay i 

 nord, til Massachusetts i .syd. Don bathynietriske udbre- 

 delse er 10 — 1456 fv. Fossil er den fanden i Norge og 

 England. 



Locality. Stations 10. 18. lOl. 252, 253, 255,257, 

 26(). 261, 262, 326, 338, and 357. and the Sogne Fjord 

 (100 fathoms). Depth 100—412 fathoms. 



Portiandia lucida is common all along the Norwegian 

 coast in depths of more than 20 fathoms. It has also 

 been found in the ]\[editerranean, the Kattegat, the Ska- 

 gerak, and tlie northern part of the Atlarftic with the ad- 

 joining portions of the Arctic Ocean. The northern limit 

 of the species is at Spitsbergen, its southern at (Jibraltai-. 

 On the American side, it ranges from Melville Bay in the 

 north to Massachusetts in the south. Its bathymetrical 

 distrilmtion is from 10 to 1456 fathoms. It is found as a 

 fossil in Norw.ay and England. 



Portiandia expansa, Jeffreys. 



Leda expansa, Jeffreys, Ann. & Mag. Nat. Hist., ser. 4, vol. 18, 1876, p. 431. 

 — - Jeffreys. Proc. Zool. Soc, 1879, p. 580, Pl. 46, fig. 4. 



Porihnidia expansa foreligger kun i nogle faa exem- 

 plarer fra stat. 290. 191 fv. og stat. 363. 26(-» tv. Arten 

 er tidligere kjendt fra mundingen af Baffinsbugten, kysten 

 af New Foundland, oceandybet sydost af Gronland. Irlands 

 nordvestkyst, Biskayerbugten og melleni Giliraltar og Azo- 

 rerne. I>en liathvmetriske udbredelse er 191 — 175', i fv. 



There are only a few speciniens of Portiandia c.rjntiisa 

 from stations 290 (191 fathoms), and 363 (260 fathoms). 

 The species had previously been found at the mouth of 

 Baffin's Bav. off the coast of Newfoundland, in the deep 

 water to the south-east of Greeiiland. off the north west 

 coast of Ireland, in the Bay of ]3iscay, and betwcii 

 Gil)raltar and the Azores. Its bathymetrical distributiou 

 is from 191 to 1750 fathoms. 



Leda pernula, ^tluUer. 

 Area perutda. Mliller, Bescliilft. Berliner Gesellsch. naturfoi'sch. Frcnnde, vol. 4, 1779, p. 57. 

 Leda — Loven, Ind. Moll. Scand , 1846, p. 34. 



_ _ G. 0. Sårs, Moll. Eeg. Aret. Norv., 1878, p. 35, Pl. 5, fig. 1 a— d. 



_ _. VerriU & Bush, Proc. U. S. Nat. Museum, vol. 20, 1898, p. 855, Pl. 82, fig. 2. 



Findested. Stationerue 224. 261, 267, 270. 323. 

 336, 357, Saltenfjord. 20 fv , Advent Bay, 20—40 fv., 

 :\ragdalena Bay. 30-60 fv. Dybde 2(.)— 223 fv. 



Denne variable art. som er jevnt uo.liredt langs hele 

 den norske kyst, er kjendt fra saavel det })acifikarktiske 

 som det atlantikarktiske omrande, Indeii sidstnævnte har 

 den sin sydgrænse ved Maine og Biskayerbugten. Den 

 iinthymetriske udbredelse er 4 — 517 fv. Fossil er den 

 funden i Skandinavien, De britiske oer, Nord Rusland, 

 Spitsliei-gen, Siliirien, Nordamerika og Grønland. 



Locality. Stations 224, 261, 267, 270, 323, 336, 

 and 357, Salten Fjord (20 fathoms). Advent Bay (20—40 

 fiithoms), Magdalena Bay (30—60 fathoms). Depth 20— 

 223 fathoms. 



This varialde species, which is evenly distrihuted 

 all along the Norwegian coast, is found in both Pacific- 

 Arctic, and Atlantic-Arctic regions. Its southern limit 

 on the Atlnntic side is at ilaine aud the Bay of Biscay. 

 The bathymetrical range is from 4 to 5L7 fathoms. It is 

 found as a fossil in Scandinavia. the British Isles. northern 

 Russia, Spitsl)ergen. Siberia. North America, and Greenland. 



Dcu norske Nordhavsexpcditioii: H. Friele & .1. A. Grieg. iMollusca III. 



