324 Annals of the South African Musetnu. 



Gen. PEECNON, Gistel. 



1835. Acanthoims, de Haan, preocc. Crustacea Japonica, decas 



secunda, p. 29. 

 1848. Percnon, Gistel, Naturgeschichte des Thierreiehs, Stuttgart, 



p. viii. 

 1876. Leiolophus, Miers, Catal. Crust., New Zealand, p. 46. 

 1900. Liolophus, Alcock, Journ. Asiat. Soc. Bengal, vol. Ixix., 



pp. 297, 439. 

 1900. Percnon, Eathbun, Proc. U.S. Nat. Mus., vol. xxii., p. 281. 



From this paper by Miss Eathbun, on " The Decapod Crus- 

 taceans of West Africa," the reference to Gistel is adopted. 



Percnon planissimum (Herbst). 



1804. Cancer planissimus, Herbst, Krabben und Krebse, vol. iii., 



pt. 4, p. 3, pi. 59, fig. 3. 

 1806. Plagusia clavimana, Latreille, Gen. Crust, et Ins., vol. i., p. 34. 

 1835. Ocypode [Acanthopus) c, de Haan, Crustacea Japonica, decas 



secunda, p. 30. 

 1838. Plagusia spinosa, M^Leay, Annulosa of S. Africa, p. 66. 

 1843. Acanthopus clavimanus, Krauss, Siidafrik. Crust., p. 42. 



" Under stones and rocks at Natal Point and in Table Bay ; 

 tolerably common." 

 1896. Leiolophus planissimus, Miers, Catal. Crust. N. Zealand, p. 46. 

 1900. Liolophus p., Alcock, J. A. S. B., vol. Ixix., p. 439, with 



numerous references. 



1907. Percnon planissimum, Eathbun, Smithson. Misc. Coll., 



vol. xlix., p. 123, footnote correction to Stimpson's 

 " Acanthopus planissimus (Herbst) Dana." 



Family GECAECINID.^. 



1852. GecarcinidcB, Dana, U.S. Expl. Exp., vol. xiii., p. 374. 



1900. GeocarcinidcB, Alcock, Journ. Asiat. Soc. Bengal, vol. Ixix., 



pp. 283, 297, 440. 



1901. Gecarcinidce, Eathlum, Bull. U.S. Fish Comm. for 1900, 



vol. ii., p. 13. 



1908. G., Stebbing, S.A. Crustacea, pt. 4, p. 14. 



Gen. GECAECINUS, Leach. 

 1814. Gecarcinus, Leach, Edinb. EncycL, vol. vii., p. 430. 

 1837. G., Milne-Edwards, Hist. Nat. Crust., vol. ii., p. 25. 

 1888. Geocarcinus, Miers, Challenger Brachyura, vol. xvii., p. 217. 



