OF THE TEMPEKATE ATLANTIC AND ARCTIC OCEANS. 205 



I think that there can be no doubt that the three species o£ Johnston, 

 Wilson, and Dohrn should be united. The number of larger spines at the 

 base of the propodos vary from 3 to 5, and this extent of variation I have 

 found to occur on the different legs of the same specimen, and the length of 

 the neck is also subject to variation. 



Other localities are Jersey {D^Arcy Tliompsoii) ; Ballynakill Harbour, 

 West Ireland, 6-8 fathoms, and off Dublin Bay {Carpenter); Irish Sea 

 {Halhed) ; Isle of Cumbrae, Scotland {D. Robertson) ; Holland (Hoek) ; 

 Denmark (Hansen) ; south-west of Norway, Stavanger and Tjoto in Nordland 

 (Sars). 



2. Pallene product a, G. 0. Sars. 



Pallene producta, G. 0. Sars, (50) no. 3; (51) p. 36, pi. iii. figs. 2 a-d. 



„ „ Carpenter in Ninth Annual Rep. Liverpool Biol. Comm. 1896, p. 15. 



Norway (^cotype from G. 0. Sars). Mas. Nor. 



Sars procured this species in 60-100 fathoms at Apelvger in the Trondhjem 

 district. Stebbing has found it at Millport in the Firth of Clyde, and 

 Carpenter has determined a specimen which came from the Isle of Man. 

 This form comes suspiciously near to P. brevirostris, but as I have seen only 

 a single specimen I follow Sars in keeping it distinct. 



3. Pallene spectrum, D. Dohrn. 



Pallene spectrum, Dohrn, (9) p. 197, pi. xv. figs. 1, 2. 



Plymouth {A. M. N.); Naples (cotype Dohrn). Mus. Nor. 

 I am glad to be able to add this species to the British fauna. 



4. Pallene Tiberii, A. Dohrn. 



Pallene Tiberii, Dohrn, (9) p. 198, pi. xvii. figs. 10, 11. 

 Naples (cotype Dohrn). Mus. Nor. 



5. Pallene phantopa, A. Dohrn. 



Pallene phantopa, Dohrn, (9) p. 196, pi. xiv. figs. 1-9. 

 Naples (cotype Dohrn). Mas. Nor. 



6. Pallene acus, Meinert. 



Pallene acus, Meinert, (37) p. 48, pi. iv. figs. 8-13. 



Taken by the ' Ingolf ' Expedition in Davis Strait, lat. 63° 06' N., long. 

 b^° W., in 1099 fathoms. 



Davis Strait (cotype Meinert). Mus. Nor. 



