No.iinr,. OBSEIiVATIOXS OX THE A.^TAriD^E—FAXOX. 6G7 



ASTACUS PALLIPES Lereboullet.' 



:N"eighborlioo(l of Madrid, Spain (Xo. 4349, Mim. Comp. Zool.). These 

 Spanish ciaytishes do not difler from French and P^nglish specimens of 

 A.palUpes. 



Doctor !Ninni,'^ in a note on the crayfislies of Italy, shows tliat uA.pal- 

 Jipes is tlie common crayfish of that country, being widely distributed 

 through the Kingdom, as far south as N^aples. A form found in the 

 province of Belluno, characterized by the presence of spines on the 

 outer margin of the antennal scale, is named by him Astacns ptdlipes, 

 var.fnleisiana."' 



Two S])ecimens in the United States National Museum from Piobezi, 

 near Turin, vary in the direction of A. astacns. This variation is chiefly 

 shown in the outlines of the rostrum. 



The Astacns rugosus of Kafinesque,^ jiresumably from Sicily, is quite 

 indeterminable, and the Astacns tomeniosns of the same writer''' is a 

 pure nonicn nudum. 



ASTACUS ASTACUS Lirnaeus. 



Cancer astacns Linnaeus, Syst. Nat., lOtb e<l., I, p. 031, 1758. 



Astacus JIuviatilis Fabuicivs, Syst. Entomol., p. 413, 1775, ct auct. plurim. 



Astacns astacns Mecschen, Museum GronoviaDiiin, p. 85, 1778; Zoojihyl. Grouov., 

 Fasc. Ill, luclex [p. 389], 1781. 



Cancer {Astacns) astacns Gmelin, Liun. Syst. Nat., 13tli ed.. Pt. 5, p. 2985, 1788 

 (in part). 



Cancer vohilis Schraxk, Fauna Boiea, III, ]>. 246, 1803. 



Potamohins flnriatUis Leach, Samouelle's Entoiiioloj^ist's ITseful Coinpendium, 

 p. 9.5, 1819 (in part). 



Fotamob'ins astacns White, List of the Specimens of Britisli Animals in the Col- 

 lection of the British Musoum, Pt. 4, Crustacea, p. 34, 1850 (in part). 



Astacns fliiriatiUs cowwihw/sGerstfeldt, Mem. Acad. Impor. Sci. St. Pctersliourg, 

 IX, pp. 5.54, 584, 1859. 



Astacns nohUis Huxley, The Crayfish, p. 233, fig. 61, B. K, H; p. 245, fig. 62, 

 B, E ; p. 296, 1880. 



A. P. j^inni^ records Astacns astacus from Carniola and Goritz. One 

 young specimen from Belluno, northern Italj-, is also considered by 

 Ninni to belong to this species. 



Since the publication of my " Revision of the Astacidop,'"' Y. M. Shim- 

 kevitch' lias printed (in Ilussian) a fuller account of the Turkestan 

 crayfish, Astacus Jcessleri Shimkevitch. 



' On page 141 of my "Revision of the AstacidiP," lines 2an(l 5, for "antennulo" read 

 "antennal peduncle." 



2Atti della Soc. Italiana di Sci. Nat., XXIX, pp. 322-326, 1886. 



''Ibid., p. 326. 



■* Precis des Dccouvertes ct Travaux Somiologiciues, p. 22, 1814. 



6 Ibid. 



'■See p. 152 of that work. 



^Bnll. Imper. Soc. Friends of Nat. Hist., AnthrojK)!., Ethnogr., Moscow, L, Pt. 1 

 (Proc. Zoolog. Sect., I, Pt. 1, p. 20), 1886. 



