HIGHER CRUSTACEA OF THE FIRTH OF CLYDE. 329 



ground. A female was taken by Herdman in Lam- 

 lash Bay with ova in August. 



Subtribe CANCROIDEA. 



Family CANCRIDAE. 

 Genus Cancer, Linn. 



CANCER PAGURUS. 

 Cancer pagurus, Linn., Syst. Nat. xii., i., p. 1044. — Bell, Trans. 

 Zool. Soc. i., p. 341 ; Brit. Crust, p. 59. 

 Platycarcinus pagurus, M. Edw., Hist. Nat. des Crust, i., p. 413. 

 Common at low water on rocky shores. A 

 very large specimen is preserved in the Greenock 

 Museum, taken in the Clyde opposite that town. 



Family ERIPHIDAE. 

 Genus Pilumnus, Leach. 



PILUMNUS HIRTELLUS. 



Cancer hirtellus, Linn., Syst. Nat. i., p. 1045. 



Pilumnus ,, Leach, Trans. Linn. Soc. xi., p. 321.— Bell, 

 Brit. Crust, p. 68. 



Portloy, Cumbrae, under stones at low water ; 

 only two specimens taken (Robertson). 



Family PORTUNIDAE. 



Genus Portunus, Fabr. 



portunus purer. 



Cancer puber, Linn., Syst. Nat. xii., p. 1046. 



,, velutinus, Penn., Brit. Zool. iv., p. 5, pi. iv., fig. 8. 



Portunus puber, Latr., Hist. Nat. des Crust, vi., p. 10.— Bell, 

 Brit. Crust, p. 90. 



Under stones at extreme low water, Cumbrae 

 (Norman, Robertson, et nobis). In shallow water 

 off the north end of Cumbrae (nobis). Upper 

 laminarian zone, Lamlash, and dredged in the 

 bay (Herdman). Frequent in Loch Fyne, 10-12 

 fathoms (Brook). Several of our specimens taken 

 in August were females with ova. 



PORTUNUS CORRUGATUS. 

 Cancer corrugatus, Penn., Brit. Zool. iv., p. 5, pi. v., fig. 9. 

 Portunus ,, Leach, Edin. Ency. vii., p. 390.— Bell, Brit. 



Crust, p. 94. 



A single specimen off the Tan Buoy, Cumbrae, 8 

 fathoms Melobesia ground; August, 1885. 



