306 .i. E. Verrill — Decapod Crustacea of Bermuda. 



CATOMETOPA. 

 Family OCYPODIDiE Leach. 



TIlis family is I'epresented in Bermuda only by the genus Ocypodt. 

 The "fiddler-crabs" (genus Uca or Gelasinius), so abundant on 

 most coasts of warm countries, are entirely lacking, so far as known. 



Ocypode arenarius (G. Edw.) Say. Ghost-Crab ; Sprite ; Beach Crab. 



Cancer arenarius Edwards in Catesby, Nat. Hist. Carolina, ii, pi. 35, 1771. 

 Cancer quadratus J. C. Fabricius, Entomologia Systematica, ii, p. 439, 1793. 



(" Habitat in Jamaica Mus. Dom. Banlis.") 

 Ocypode quadrata J. C. Fabricius, Suppl. Entomol. System., p. 347, 1798. 

 S. I. Smith, Trans. Conn. Acad. Sci., iv, p. 257, 1880. (Synonymy and 

 distr. ) 

 Ocypoda albicans Bosc, Hist. nat. Crust., i, p. 196 (not the fig.) (Carolina 



coast). 

 Oc]/pode arenarius Saj', Jour. Acad. Nat. Sci. Philadelphia, i, p. G9, 1817. 

 M. -Edwards, Hist. nat. Crust., ii, p. 44, pi. 19, tigs. 13, 14, 1837 {Ocypoda are- 



naria) ; 

 Coues, Proc. Acad. Nat, Sci. Philadelphia, 1871, p. 122 {arenaria ; North 



Carolina, habits). 

 Smith, Amer. Jour. Sci. (3), vi, p. 67, 1873 (ilfoiio/e^jis inennis=megalops- 

 stage) ; Inverteb. Vineyard Sd., Report U. S. Fish Comm., 1, p. 545 (251), 

 534 (240), 1874 {Ocypoda arenaria). 

 Kingsley, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 322 (7), {Ocypoda 

 arenaria); op. cit., for 1879, p. 400; op. cit., 1880, p. 184.* Rankin. 

 Crust. Bermuda Is., p. 525, 1900. 

 Ocypoda rhombea M. -Edwards, Hist. nat. Crust., ii, p. 46, 1837 ("Antilles et 

 Bresil"); Ann. Sci. nat.. Ill, xviii, p. 143 (107), 1852 {Ocypode). 

 Dana, U. S. Expl. Exped., Crust., p. 322, pi. 19, fig. 8, 1852 (Brazil). 

 Monolepis inermis Say, Joiir. Acad. Nat. Sci. Philadelphia, i, p. 157, 1817 



(megalops-stage). 

 Ocypode albicans M. J. Rathbun, Results Branner-Agassiz Exp. Brazil, Proc. 

 Wash. Acad. Sci., ii, p. 134, 1900 ; Brachy. and Macr. Porto Rico, p. 6, 1901 

 (descr.); Amer. Naturalist, xxxiv, p. 585, figs. 1, 2, 1900. 



Figure 1. Plate IX, Figures 2, 3. 

 This crab is easily distinguished by its thick, quadrate carapace, 

 coarsely granulated on the sides, with finer granules on the middle 

 and posterior parts ; the acute anterior angles ; and the very large eyes 

 and eye-stalks. The eyes are abruptly rounded distally, but pro- 

 longed proximally on the stalks beneath. The chelipeds of the males 



* Kingsley, op. cit., p. 184, used the specific name arenaria, as from Catesby, 

 1731 and 1771, dating it from the later edition. That edition was edited by 

 George Edwards, who gave binomial names to the species of Catesby. There 

 is no valid reason for not adoiJting them when they have priority, as in this case. 

 The name Cancer arenarius is given in the text and is also engraved on the plate. 



