Land, Fresh- Water, and Marine Crustacea. 123 



Genus (9) Mysidopsis, G. 0. Sars, 1864. 



15. Mysidopsis didelphys (Norman). 



1863. Mysis didelphys,'NoTmsin, Trans. Tyneside Nat. Field Club, 



vol. 5, p. 270, pi. xii. figs. 9-11. 

 1872. Mysidopsis didelphys, G. 0. Sars, Monogr. Mysider (II.), 

 p. 20, pi. vii. 



Habitat. — Taken in the Firth of Forth in November 1888, 

 and subsequently on various occasions, and in different 

 parts of the estuary, but always sparingly. 



16. Mysidopsis gibhosa, G. 0. Sars. 



1864. Mysidopsis gibhosa, G. 0. Sars, Zool. Reise 1863, i Christiania 



Stifter, p. 28. 



Habitat. — Firth of Forth, frequent. It has been taken in 

 Granton Harbour, as well as at several of the Experimental 

 Stations (cf. Sixteenth F. B. Rept., pt. iii. p. 209, 1898). 



17. Mysidopsis angusta, G. 0. Sars. 



1864. Mysidopsis angusta, G. 0. Sars, Zool. Reise 1863, i Chr. 

 Stifter, p. 30. 



Habitat. — Captured very sparingly at Stations I., III., 

 and v., not more than one or two specimens being obtained 

 in any single gathering. 



Genus (10) Leptomysis, G. 0. Sars, 1869. 



18. Leptomysis gracilis, G. 0. Sars. 



1864. Mysis gracilis, G. 0. Sars, Zool. Reise 1863, i Chr. Stifter, 



p. 23. 

 1869. Leptomysis gracilis, idem, Undersogelser over Christiania- 



fjordens, Dybvandsfaiina, p. 29. 



Habitat. — Captured off the east side of Inchkeith, off 

 St Monans, and in the vicinity of Fidra, in October and 

 November 1888, and subsequently at nearly all the Ex- 

 perimental Stations. 



19. Leptomysis lingvura, G. 0. Sars. 



? 1842. Cynthia Flemingii, Goodsir, Edin. New Phil. Jour., vol. 

 xxxiii. p. 175, pi. ii. fig. 1. 

 1866. Leptomysis lingvura, G. 0. Sars, Zool. Reise 1865, i Chr. 

 Stifter, p. 21. 



Habitat. — Obtained in a tow-net gathering collected off 



