HIGHER CRUSTACEA OF THE FIRTH OF CLYDE. ^3 



CRANGON NANUS. 

 Crangon nanus, Kroyer, Nat. Tidssk. iv., p. 231. 

 Pontophilus bispinosus, Hailstone, Mag. Nat. Hist, viii., pp. 

 11, 13, fig. 30. 



Crangon bispinosus, Bell, Brit. Crust, p. 268. 



Off Cumbrae (Robertson). 



CRANGON ALLMANI. 



Crangon Allmani, Kinahan, Proc. Dublin Nat. Hist. Soc. 1857, 

 vol. iv., p. 80; Irish Acad. Trans, xxiv., 1871, p. 65.— White, 

 Pop. Hist. Brit. Crust, p. aSi. 



Abundant everywhere in deep water, usually on 

 soft ground, in 20-105 fathoms. We took females 

 with ova in Loch Fyne in the month of July. 



CRANGON ECHINULATUS. 



Crangon echinulatus, M. Sars, Videnskabs Selsk. Forhandl., 

 1861, p. 186. 

 Crangon serratus, Norman, Brit. Assoc. Rep., 1861 (1862), p. 151. 



A single specimen off Skate Is. Loch Fyne, 105 

 fathoms, mud. This species had only previously 

 been taken in Britain by Dr. Norman off the Shet- 

 land Is. in 1861 and 1867, and off the Hebrides in 

 1866. 



Genus N iK a , Risso. 



NIKA EDULIS. 



Nika edulis, Risso, Crust, de Nice, p. 85, pi. iii., fig. 3.— M. Edw., 

 Hist. Nat. des Crust, ii., p. 3(>4.— Bell, Brit. Crust, p. 275. 



Processa canaliculata. Leach, Malac. Brit. pi. xli. 



,, edulis, Latr. Reg. Anim. de Cuv. (2^ ed.) iv., p. 95. 



Nika canaliculata, Desniarest, Consid. siu' les Crust, p. 2.31, pi. 

 xxxix., fig. 4. 



Several specimens off Skate Is., 105 fathoms, Aug. 

 1885, with the last species ; one — a female with ova 

 — measures 2jf inches in length ; also a solitary 

 specimen off Brodick Bay, 93 fathoms, mud. 



The colour during life is white, with a yellowish- 

 brown tinge, the latter due to the j)resence of small 

 pigment spots over the body, limbs, and stalks of 

 the antennae; the eyes a beautiful bluish gray. The 

 remarkable translucency of the body has been fre- 

 quently noticed by writers; in our specimens the 



