342 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



Nephrops norvegicus, Leach, Edin. Ency. vii., p. 400.— Bell, 

 Brit. Crust, p. 251. 



Common in many localities, especially towards the 

 mouth of the Firth, in 20-60 fathoms. Being a quick 

 swimmer, trawling must be resorted to for its cap- 

 ture, and it is rarely taken in the dredge ; ^ve, 

 however, obtained a small specimen by the latter 

 method near the head of the Gareloch. 



Subtribe CARIDEA. 



Family CRANGONIDAE, 



Genus C R A N G o N , Fabr . 



CRANGON VULGARIS. 



Astacus crangon, Herbst, Krabben und Krebse, t. ii., p. 57, 

 pi. xxix., figs. 3, 4.— Penn., Brit. Zool, iv., pi. xv., fig. 30. 



Crangon vulgaris, Fabr., Suppl. Ent. Syst. p. 410.— M. Edw., 

 Hist. Nat. des Crust, ii., p. 341.— Bell, Brit. Crust, p. 256. 



Common on all the sandy shores, and in shallow 

 water as far up as the Gareloch. In the Firth of 

 Clyde it is j)robably nowhere sufficiently abundant 

 to be j)rofitably " shrimj)ed " for the market. 



CRANGON SPINOSUS. 



Crangon spinosus, Leach, Trans. Linn. Soc. xi., p. 346.— Bell, 

 Brit. Crust, p. 261. 



Crangon catapliractus, M. Edw., Hist. Nat. des Crust, ii., p. 

 243.— White, List Crust. Brit. Mus. p. 74. 



Pontophilus spinosus, Leach, Malac. Brit. pi. xxxvii., A. — M. 

 Sars, Bidrag til Kundskab om Christianiafjordens Fauna i., p. 2. 



Not uncommon in many localities as far up as the 

 Cloch Light, 20-60 fathoms, usually on soft ground. 

 One specimen had a curious parasite attached to the 

 mouth organs, which the Rev. Dr. Norman regards 

 as new. 



CRANGON SCULPTUS. 

 Crangon sculptus. Bell, Brit. Crust, p. 263.— Heller, Crust, des 

 Siidl. Eur. p. 228, taf. vii., fig. 11. 



Lamlash Bay, 5 fathoms, sand, two specimens 

 (Norman). We dredged a single specimen off 

 Muggie Point Little Cumbrae, 20 fathoms, hard 

 ground. 



