276 ORTMANN— DISTRIBUTION OF DECAPODS [Aprils, 



Faxon, W. : "Notes on North American Crayfishes, Family Astacidae " (^Pr. 



U. S. Mus., Vol. 12, 1890). 

 Faxon, W. : " Observations on the Astacidae in the U. S. National Museum and 



in the Museum of Comparative Zoology, with Descriptions of New Species " 



(/>. U. S. Mus., Vol. 20, 1898). 

 Ortmann, a, E. : «« Ueber Bipolaritaet in der Verbreitung mariner Thiere " 



{Zool. Jahrb. Syst., Vol. 9, 1896, p. 588-594). 

 Ortmann, A. E., in Bronn's Klassen und Ordnungen des Thierreichs, Vol. 5, 



Part 2, 1 90 1, pp. 1 288- 1 290. 



ib) Special Literature ^ published after Faxon' s Revisions yi88^, 



i8gOi ^8g8), or not embodied in them. 

 Berg, C. : " Datos sobre algunos crustaceos nuevos para la fauna Argentina " 



(^Commun. Ahis. Buenos Aires, Vol. i, 1900). 

 CocKERELL, T. D. A., and Porter, W. : « A New Crayfish from New Mexico " 



{Pr. Acad. Philadelphia, 1900). 

 DOFLEIN, F. : " Weitere Mitteilungen ueber dekapode Crustaceen der k. bayer- 



ischen Staatssammlungen " (6". B. Ak. Muenchen, Vol. 30, 1900, p. 132), 

 Hay, W. P. : *' Description of Two New Species of Crayfish " (^Pr. U. S. Mus., 



Vol. 22, 1899). 

 Hay, W. p. : «' Synopses of North American Invertebrates — 6. The Astacidae 



of North America" (^Ajueric. A^atural., 1899). 

 Lenz, H. : " Die Crustaceen der Sammlung Plate " (^Zool. Jahrb. Syst., Suppl. 



5, 1902, pp. 736,737)- 

 NoBiLi, C. : " Contribuzioni alia conoscenza della fauna carcinologica della 



Papuasia, della Molucche e dell' Australia" (Ann. Mus. Genova, Ser. 2, 



Vol. 20, 1899). 

 Philippi, R. a.: (Descriptions of Three Species of Crayfishes from Chile) 



{^Annates Umvers. Chile, Vol. 61, 1882, pp. 624-628, with plate). ^ 

 Philippi, R. A. : " Dos palabras sobre la sinonimiade los Crustaceos, Decapo- 



dos, Braquiuros o jaivas de Chile" (Ann. Univers. Chile, 1894). 



For the intended publication of the Decapods in the ^'Thier- 

 reich," edited by the German Zoological Society, the present 

 writer was obliged to make a complete collection and a critical 

 review of the systematic literature of these two families. Of course, 

 the results of these studies are embodied in the following portion of 

 this article, although it is not possible to refer to this work, the 

 manuscript of which has just been finished. 



I. Family: PoTAMOBiiDiE HuxL' 

 The family Potamobiidce. is divided into two genera : Potamobius 

 Sam. and Cambarus Er. The latter is no doubt the more special- 



^ Of this rare paper I possess a handwritten copy and sketches of the figures, 

 through the kindness of Dr. F. Philippi, of Santiago. 



2 Those authors (Faxon, Rathbun) who retain for the European crayfish the 



