413 Mr. T. Scott on Crustacea 



The following is a classified list of the species of Crustacea 

 captured bj Mr. Holt and arranged in the order in which 

 they are referred to above. 



Suborder Decapod A. 

 Crangon Allmanni^ Kinahan. 



Cranyon Albnanni, Kinahan, Proc. Dublin Nat. Hist. Soc. vol. iv. p 80 

 (1857). ^ 



This species appears to be usually confined to off-shore 

 waters, and may be distinguished fiom Crangon vulgaris not 

 only by its colour when alive, but also by the "abdomen 

 having posteriorly a distinct median dorsal groove. Crangon 

 AUmonni frequently forms an important part of the food of 

 the haddock and the cod. 



Crangon nanus, Kroyer. 



Crangon nanus, Kroyer, Naturliistorisk Tidsskrift, ser. 1, vol. iv. p. 231 

 (1842). ^ 



This appears to be the Crangon bispi'nosa, Bell (Brit. 

 Stalk-eyed Crust, p. 268, 1853), and seems to have a fairly 

 ■wide distribution in British waters. It is, as its name implies, 

 one of the smaller species of Crangon. 



Pandalus annuUcoriiis, Leach. 



Pandalus annulicornis, Leach, Make. Brit. t. xl. ; Bell, Brit. Stalk- 

 eyed Crust, p. 297. 



This is one of the most valuable of the smaller Crustacea for 

 food purposes. A regular and remunerative fishery of the 

 " prawn " and the '' common shrimp " is carried on at several 

 places round the British coasts. The larger food-fishes also 

 prey frequently on Pandalus annulicornis, the fragments of 

 these Crustaceans often forming a large portion of the contents 

 of the stomachs of such fishes. It appeared to be scarce at the 

 south-west end of the Dogger Bank at the time the present tow- 

 net gathering was collected. 



Suborder SCHIZOPODA*. 

 G astrosaccus spinifer (Goes). 



Mysis spinifera, Goes, Crust, decapoda podoph. maiiua Suecige p 14 

 (1863). ' ^" 



(1886) ; Eev. A. M. Norman, " Ou a Crangon, some Schizopoda, and 

 Cumacea new to or rare in the British Seas." 



* See also the Rev. A. M. Norman's memoir on the British Mysidse 

 (Ann. & Mag. Nat. Hist. ser. 6, vol. x. pp. 143-166 and 242-263. bIs ix 

 and X., 1892). ; f • • 



