53 



S. R. 400—5 11 '07. 51° 21' N., 11° 49' W., 525-600 fms. 



Trawl— Two. 

 S. R. 401—5 11 '07. 51° 14' N., 11° 51' W., 600-660 fms. 



Trawl. Temp, at 580 fms. 8-35° C, Salinity 35-5 %<, 



— Two females, 75-73 mm. 

 S. R. 477—28 VIII '07. 51° 15' N., 11° 47' W., 707- 



710 fms. Trawl. Temp. 7 19° C— Two males and 



two females, one ovigerous, 94-84 mm. 

 S. R. 484—30 VIII '07. 51° 35' N., 11° 57' W., 602- 



610 fms. Trawl — One male, 84 mm. 

 S. R. 506—12 IX '07. 50° 34' N., 11° 19' W., 661- 



672 fms. Trawl. Temp, at 600 fms. 8-22° C, 



Salinity 35-53 %o — ^Two males and two females, 



79-70 mm. 

 S. R. 593— 6 VIII '08. 50° 31' N., 11° 31' W., 670-770 fms. 



Trawl. Temp, at 650 fms. 7-75° C, Salinity 



35-53 °/qq — Four females, one ovigerous, 97 mm. 



Vertical Distribution. — The depths at which this species has 

 been found range from 350 fms. (CauUery) to 740 fms. 

 (Alcock). It appears to reach its greatest frequency between 

 600 and 700 fms. 



Genus Homarus, H. Milne-Edwards. 



Homarus vulgaris, Milne-Edwards. 



Homarus vulgaris, Bell, 1853. 

 Homarus vulgaris, Heller, 1863. 

 Homarus vulgaris. Cams, 1885. 



Size, — ^Though as a rule it is considerably smaller than the 

 elosely -allied American Lobster, the European species some- 

 times attains a very large size. The largest specimen of which 

 I have been able to find a record is one measuring 20 inches 

 from the rostrum to the telson ; it was taken in Guernesy in 

 1873. A very large individual was taken in the Irish Sea in 

 1911 ; it measures 19 inches from rostrum to tip of telson and 

 has the following additional dimensions : — 



Length of carapace (including 



rostrum) .. .. .. 219 mm. (8f ins.) 



Breadth of carapace .. .. 108 mm. (4j ins.) 



Tip of longest cheliped to tip of 



telson .. .. .. .. 784 mm. (31 ins.) 



Length of crushing chela . . 292 mm. (11 Jins.) 



Length of cutting chela . . . . 273 mm. (lOfin.) 



General Distribution. — The northern limit of the range of the 

 European Lobster is about Tromso on the north-west coast 

 of Norway ; it is, however, much more plentiful on the south- 

 west coast (Appellof). It occurs commonly in Swedish and 

 Danish waters (Goes, Meinert), and along all the coasts of the 

 North Sea. It is found all round Britain, and extends south- 

 wards through theBay of Biscay to the coast of Spain and 



