68 Proceedings of the Royal Physical Society. 



carapace, the antennal peduncles have only two segments 

 and no acicle, and the jointing of the ambulatory limbs is 

 also peculiar. The above characters, taken from the original 

 description, show that the species may be referred to the 

 restricted genus Pagurus. 

 Hal. — Falmouth (Cocks). 



Genus, Eupagurus, Brandt (restricticm). 



Brandt, MiddendorfF's Sibirische Reise, Zool. TM. i., p. 105 (1851) ; Stimp- 



son, I.e., p. 74 (1858). 

 Bernhardus, Dana, I.e., p. 440 (1852). 



Front acute towards the middle, ophthalmic segment exposed. 

 External antennae with a long flagellum, the acicle slender; 

 external maxillipedes rather large. Chelipedes rarely sub- 

 equal, the right usually larger ; the fingers acuminate and 

 with calcareous tips. Fourth pair of legs scarcely subchelate. 

 Abdomen of male without genital appendages. 



Eupagurus Bernhardus. 



Cancer Bernhardus, Linne, Syst. Nat. 1049 (1735); Id., Mus. Lud. Ulr., 

 p. 454 (1764) ; Herbst, Krabben imd Krebse, t. ii., p. 14, tab. xxii., 

 fig. 6 (1796). 

 Astacus Bernhardus, Pennant, Brit. Zool., vol. iv., p. 30, tab. xviii. (1777); 

 De Gear, Mem. pour servir a I'liist. des Insectes, t. vii., p. 405, 

 pi. xxiii., figs. 3-12 (1778). 

 Pagurus Bernhardus, Olivier, Enc. Meth. Insectes, t. viii., p. 641(1791); 

 Fabricius, Suppl. Ent. Syst., p. 411 (1798); Latreille, Hist, des 

 Crust, t. vi., p. 160 (1805); Id., Gen. Crust, et Ins., t. i., p. 46 

 (1807); Lamarck, Hist, des anim. sans vert., t. v., p. 220(1818); 

 Desmarest, Consid. sur les Crust., p. 173, pi. xxx., fig. 2 (1825) ; 

 Milne-Edwards, Ann. des Sc. Nat., 2^ ser., t. vi., p. 266 (1836); Id., 

 Hist. Nat. des Crust., t. ii., p. 215 (1837) ; Id., Atlas du Regne Anim., 

 3e edit.. Crust., pi. xliv., fig. 2 ; Id., Ann. des Sc. Nat., 3^ ser., t. x., 

 p. 59(1848); Bell, Brit. Crust., p. 171 (1853); White, Pop. Hist. 

 Brit. Crust., p. 74 (1857). 

 Pagurus streUonyx, Leacb, Malac. Brit, tab. xxvi., figs. 1-4 (1815) ; 



Latreille, Ency. Meth., pi. cccix., figs. 3-6 (1825). 

 Bernhardus strehlomjx, Dana, Proc. Acad. Nat. Sc. Phil., vol. vi., p. 6 (1852). 

 Eupagurus Bernhardm, Brandt, Middend, Sibir. Eeise, Zool., 'p. 105 (1851) ; 

 Stimpson, Proc. Acad. Nat Sc. Phil., p. 74 (1858); Heller, Crust 

 Sudl. Eur., p. 160 (1863). 

 Pagurus ulidianus, W. Thompson {Pag. ulidice), Brit. Assoc. Rep,, p. 267 

 (1843) ; Bell, Brit Crust., p. 180 (1853) ; White, Pop. Hist Brit 

 Crust, p. 76 (1857). 



