■415 Mr. T. Scott on Crustacea 



Suborder C U M A C E A, 



Lainprops fasci'ata, G. O. Sars. 



Lamprops fasciafa, G. O. Sars, Om en i Somm. 1862 foret. Zool. Reise 

 i Christianias og Trondhjems Stifter, 1863, p. 44. 



'i'lie carapace of this species lias three oblique lateral folds 

 and the telson is furnished with five apical spines. Lamprops 

 fdsciata is very prettily marked. It was somewhat rare in 

 the gathering from the Dogger Bank. 



DiastyJis Ratlikii (Kioyer). 



Cumii Riifhkii, Kioyer, " Fire nye Arter af Slaegten Gnna," Natur- 



hitstorisk Tidsskrift, ser. 1, vol. iii. p. 508 (1841). 

 Diastijlis Ruthkii, Sp. Bate, Ann. & Mag. Nat. Hist. vol. xvii, p. 451 

 (1856). 



This is a large and fine species and occurs sometimes in 

 considerable numbers. In the Dogger-Bank gathering it 

 was somewhat scarce. I have on several occasions observed 

 iJiastijUs Bathkii in the stomachs of fishes. 



Diastylis rugosa. G. O. Sars. 



Diastylis rugosa, G, 0. Sars, " Om den aberrante Krebsdyrgruppe 

 Cuniacea og dens Nordiske Arter," Selskab. Forhandl. 1864, p. 41. 



This species is considerably smaller than the last and was 

 rather uncommon in the gathering. 



Pseudocuma cercaria (Van Beneden). 



Leucon cercaria, Van Beneden, Recherches sur la Faune littorale de 



Belgique, Crust., 1860, p. 85, pi. xiv. 

 Psettdociaiia cercaria, G. O. Sars, Middlebavets Cumaceer, 1879, p. 114, 



pis. xl., xli., and xlii. 



This was a moderately common form in the Dogger-Bank 

 gathering. The species appears to be widely distributed in 

 the British seas. 



Suborder A M P H i P D A. 



Parathemisto ohlivia (Kroyer). 



Hyperia ohlivia, Kroyer, Gr^nl. Arufip. p. 70, pi. iv. fig. 19 (1838). 

 Parathemisto ohlivia, G. O. Sars, Crust, of Norway, p. 10, pi. v. fig. 1 

 (1890). 



This species was common in the Dogger-Bank gathering. 

 It is one of the most important among the Amphipodaas fish- 

 food. IJyiJeriu ohlivia a[)pears to be more or less frequent 



