( 81 ) 



11. The eyestalUs, which are coarse and broad, do not nearly reach to 

 the end of the antennular peduncle : the eyes occupy a third or 

 more of the terminal joint of the eyestalk : — 



A. Left cheliped vastly larger than the right : — 



i. Outer surface of left hand closely covered with imbricating 

 scale-like tubercles „. _ 



ii. No squamiform tubercles present : — 



a. Inner border of upper surface of dactylus of left cheliped 



sharply cristiform _ _ 



b. Upper surface of dactylus of left cheliped bearing longi- 



tudinal rows of granules only; — 



a'. Outer edge of upper surface of propodite of third 

 left leg well defined, subcristiform _ 



6'. Outer edge of upper surface of propodite of third 

 left leg hardly defined : — 



a". Upper part of outer surface of left hand with 

 2 or 3 raised longitudinal rows of granules 

 or small tubercles, lower part smooth _ 



b". Whole outer surface of left hand uniformly 

 granulous _ — ^ 



B Both chelipeds are of exactly the same size and form 



P. imbricatus. 



P. deformis. 



_ P. varipes. 



P. asper, DeHaan. 



P. dearmatus. 

 P, hessii. 



I. Pagurus punctulatus, Olivier. Plate VIII., fig. i. 



Cancer niegistos, Herbst, Krabben III. iv., p. 23, pi. xi., fig, 1, 1804. 



Pagurus megistos, Olivier, Encycl. Meth. VIII., p. 639, 1811. 



Paeurus putictitlaius, Olivier, Encycl. Meth. Vlll., p. 641, 1811 : Desmarcst, Diet. Sci. Nat. 

 XXVIII., p. 289, 1823, and Consid. Gen. Crust., p. 179, 1825 : Quoy & Gaimard, Voy. Uranie 

 et Physicienne, p. 528, pi. Ixxviii., fig. 2, 1824 : Milne Edwards, Ann. Sci. Nat., Zool., (2) VI. 

 1836, p. 273, and (3) X. 1848. p. 61, and ?Iist. Nat. Crust. II., p. 222, 1837: Randall. Journ. 

 Acad. Nat. Sci. Philad. VIII. 1839, p. 132: Dana, U. S. Expl. Exp., Crust,, pt. I., p. 451, pi. 

 xxviii., fig, 4 (j-i, 1852: Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 246: Heller, Novara 

 Crust., p. 87, 1865: Hilgendorf in v. d. Decken's Reisen in Ost — Afr. Ill, i., p. 95,1869, and MB. 

 Ak. Wiss. Berlin. 1878, p. 814 : Miers, P. Z. S. 1877, p. 138, and Phil. Trans. Vol. 168, 1879, 

 p. 491, and Ann, Mag. Nat. Hist. (5) V. 1880, p. 374, and Voy. H. M. S. Alert, pp, 519, 5,S5. 

 1884: Richters in Mobius, Meeresfauna Maurit,, p. 160, 1880: Lenz u. Richters, Abh. Senck, 

 nat. Ges. XII. 1881, p. 426: Ha<^vvell, Cat. Austr. Crust,, p. 153, 1882 : F. Muller, Verb. nat. 

 Ges. Basel, Vlll. 1886. p. 472: de Man, Arch. f. Nat. LIII. i., 1887, p. 429, and Journ. Linn. 

 Soc, Zool., XXIL 1888, p. 225 ; Ortmann, Zool. Jahrb., Syst., etc., VI. 1892, p. 286, and in Semon's 

 Zool. Pnrschungsr. in Austral., etc. (1894). Crust., p. 30: J. R. Henderson, Trans. Linn. Soc, 

 Zool., (2) V, 1893, p. 419 : Etheridge, Mem. Austral. Mus., No. 2, 1889, pp. 35, 36: Borradaile, 

 P. Z. S., 1898. p. 461. and Stomap. & Macrura of Willey's Exp., p. 425, 1899 : Nohili, Ann. .Mu.s. 

 Civ. Genov. (2)XX. 1899, p. 248: Schenkel, Ver. nat. Ges. Basel, XIII. 1902, p. 568: Lanchester, 

 P. Z S. 1902, p. 364. 

 II 



