132 Canon A. M. Norman on British Amphipoda. 



Genus 4. EUTHEMISTO, Bovallius. 



4. Euthemisto compressa (Goes). 



I860. 7'hemisto co/npreKsa, Goes, " Crust. Auiphip. Maris Spetsbergiam 



alluentis, etc.," GEfvers. K. Vet.-Akad. Forli. p. 533, pi. xli. fig. 34. 

 1878. Lestn'fjonus sptnidursnlis, Spence Bate, " Two new Crustacea 



from the Coast of Aberdeen," Ann. & Mag. Nat. Ilist. ser. 5, vol. i. 



p. 411, fig. 2, and as Ilyperia spin'ulorsalis, id. ibid. vol. ii. p. 48^. 

 1892. Euthemisto compressa, Norman, "Rare Crustacea on the York- 



sliire Coast,'' 'The Naturalist,' p. 175. 

 1895. Euthemisto compressa, Sars, (142) p. 12, pi. v. fig. 2. 



Bovallius has joined Euthemisto hispinosa, Boeck, witli 

 this species ; but the remarkable spination of the propodos of 

 the third perseopods (see Sars, pi. vi. fig. 2, p. 5), which 

 is the chief distinguishing character of that species, as indi- 

 cated by Sars, and as I find in Greenland specimens of 

 E. hispinosa, seems to distinguish tliem. 



Hah. Redcar, Yorkshire, in extraordinary profusion, thrown 

 up upon the beach, April 4, 1892 (T. //. Nelson) : Mus. Nor. 

 Aberdeen [Spence Bate) ; 70-80 miles E. by N. of mouth of 

 the Humber (T. S.). 



Distrib. Davis Strait and Greenland, * Valorous,' 1875 ; 

 lat. 52° 33' N., long. 26° 44' W., and lat. 59° 16' N., 

 long. 37° 16' W., ' Valorous,' 1875; Faroe Cliannel ' Triton,' 

 1882 [Sir J. Murray) : Mus. Nor. Norway and Jan Mayen 

 {G. 0. Sars). 



5. Euthemisto lihelhda (Mandt). 



1822. Gammanis /j6e//w/«, Mandt, Observationes in Tlistoriam Naturaleni 



et Analomiam Comparatam in itinere Groelandise factae, p. 32. 

 1838. Themisto crassicornis, Kroj'er, Groulands Amfipoder, p. 295, 



pi. iv. fig. 17. 

 1838. Themisto arctica, id. ibid. p. 291, pi. iv. fig. 16. 

 1869. Themisto crassicornis, Bate & Westwood, (1) vol. ii. p. 522. 

 1887. Euthemisto Nordenskioldi, Bovallius, " Arctic and Antarctic 



Hyperids," ' Vega ' E.Yped. "\'etensk. lakttagelser, vol. iv. p. 570, 



pi. xlvii. figs. 104-110. 

 1895. Euthemisto libellula, Sars, (142) p. 13, pi. vi. fig. 1. 



It is the Themisto lihellula of Goes and the Euthemisto 

 libellula of Bovallius. 



Hab. Banff (T. Edioard, fide Bate). 



Distrib. Davis Strait and Greenland, 'Valorous,' 1875 ; 

 Jan Mayen, Austro-Hungarian Exped. : Mus. Nor. In shoals 

 on north and east coasts of Finmark (O. 0. Sars); and 

 Arctic region generally from Siberia to Greenland. 



A good specific character by which the species may be at 

 once recognized is that the nail of the third and longest 

 perseopods bears a comb-like set of long spines. 



