53G OKUSTACEANS OF WEST COAST OF AFKICA — BENEDICT. 



Family CANCKID.T:. 



Actaea rufopuiictata (Milne Kdwiiids). 



A'fl«//io ruj'opioivtdtii!^ Milne Ivlwiirds, Hist. Nat. dcs Ciiist., i, j). 389. 

 Jctau nifopiDictata A. Mihu' Edwards, Nonv. Arch. Mius. Hist. Nat. Paris, i, p. 2(>H, 

 pi. xviii, lijf. 1, Irt. 



Ascension Island; one yoiinii' si)e('inien. 



Leptodius americanus (Saussnrc). 



Chlorodiiin americaints Saussnre, Crust. Nouv. Aiitille.s et Mexiciuc, p. 14, ]>!. I, tig.5. 

 Xanthodius amencaiins Sl,ini])S()n, Ann. Lye. Nat. Hist. N. V., ]>. 20!), 18G0. 

 Leptodius americanioi A. Milne Edwards, Cra.st. in Miss. Sci.au Mexique, p. 269, 1871. 



Barbados, May 8, 1890. 



Leptodius floridanus (Gibbes). 



Chloyodiiis floridaniin Gibbes. Proc. Araer. Assoc. Adv. 8ci., p. 175, 1850. 

 Leptodiii-s Jiorid(unt>i A. MUne Eilwards, (!rnst. in Miss. Sci. an Mcxique, p. 268, pi. 

 xi,ix,ti<«;. 2, 1871. 



Barbados, May 8, 1890. 



Eriphia gonagra (Fabricins). 



Cancer oouagra Fabricius, Suppl. Eut. Sj^st., p. 337, 1798. 



Eriphia (joiiaara Milne Edwards, Hist. Nat. des Crust., i, p. 426, pi. xvi, figs. 16, 17. 



Barbados, May 8, 1890. 



Family POETUNID^. 



Genus CALLINECTES Stinipson. 



Altlioiigli tbe oecurrence of tbe genus CaUinectes on tbe west coast 

 of Africa is Mell known, tbe si)eciniens obtained by tbe eclipse expedi- 

 tion are the only ones in tbe museum collectiou from that region. A. 

 IVlilne Edwards, in his Zoologie du iNlcxique, describes CaUinectes 

 africaniis as a new variety of C. <li<(c(i)iflni,s horn the Cape de Verde 

 Islands. In this work he also makes all of the Ordwayan and other 

 si)ecies of the genus mere varieties of C. <ll<ie(inihun. Holding this 

 view, he naturally does not point out tbe alhnity of his variety to any 

 of the species generally recognized on this side of the Atlantic. In 

 January, 18(53, Albert Ordway, through Dr. Stinipson, connnnnicated 

 to tbe Boston Society of Natural History bis well-known mon<)gra[)li 

 of the genus CaUinectes. In tbis i^aper Mr. Ordway brings into line as 

 distinct si)ecies tbe diiferent forms long known as Tjupn hastata Say 

 and its synonyms, and but recently i)laced by Dr. Stinipson in tbe 

 genus CaUinectes erected by him for the species on account of its very 

 narrow ± sluqied abdomen. Mr. Ordway, in defining the several 

 species, used as one of the principal characters the widely different 



