ZOOLOGY OF FERNANDO NORONHA. 511 



This species is the West-Indiau representative of the genus. 

 [These crabs are exported in wooden crates filled with dry leaves 

 to Pernambuco, where they are in great demand as food. We 

 were told they were land-crabs. — H. JSF. E.} 



Genus Act.ea, de Saan. 

 1850. Actsea, de Haan, Crust, in Siebold, Fauna Japonica, dec. i. p. 18. 



AcT^A acantha, Milne-Edwards. 



1834. Cancer acanthus, M. -Edwards, Hist. Nat. Crust, i. p. 379. 



1881. Actsea acantha, A. M.-Edwards, Miss. Sci. Mex. {Crust.) p. 245, 

 pi. xliii. fig. 1. 



One minute specimen, a male, was obtained. 



It is only comparatively lately that the locality of this species 

 has been made known by M. Alphonse Milne-Edwards, who 

 received a specimen of it from Gruadeloupe. 



Genus Leptodius, A. Milne-Edwards. 



1863. Leptodius, A. Milne-Edwards, Ann. Sci. Nat., Zool. ser. 4, xx. 

 p. 283. 



1873. Leptodius, A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. ix. 

 p. 221. 



1886. Leptodius, Miers, Brachyura of H.M.S. ' Challenger,' p. 136. 



Leptodius americanus {Saussure). 



1858. Chlorodius americanus, H. de Saussure, Mem. sur divers Crust. 

 nouv. du Mex. et des Antilles, p. 14, pi. i. fig. 5. 



1881. Leptodius americanus, A. Milne-Edwards, Miss. Sci. Mex. 

 (Crust.) p. 269. 



Of this species eight specimens (5 males, 3 females with ova) 

 were obtained. It is found in the West Indies and Florida. 



Genus Lophact^a, A. Milne-Edwards. 



1862. Lophactsea, A. Milne-Edwards, Ann. Sci. Nat., Zool. ser. 4, 

 xviii. p. 43. 



1866. Lophactaea, A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. i. 

 p. 245. 



1886. Lophactaea, E. J. Miers, Brachyura of H.M.S. ' Challenger,' 

 p. 113. 



LoPHACT^A LOBATA, MUnc-Edwards. 



1834. Cancer lobatus, Milne-Edwards, Hist. Nat. Crust, i. p. 375. 



