.'')04 



On some Purasitic Nenuitodcs. 



A. .'^(unii, i( siH'ins advisable to retain the vvell-kiiowii nainc. 

 cn!!lc(Uiil(ttiini. l\ Itetcronra ((-repliii, 182',') is in all 

 probability a syiioiiyiu ot" P. semileres (Zoder, 1800), and not 

 a ili.stinet sptcies. 



Fi{?. 8. 



Porrocacum ensicaudatum. Tail of male; ventral view, showing 

 postanal papillaB. 



References. 



Baylis, II. a. 1920. " On the Classification of the Ascarida\ — I. The 



Systematic Value of certain Characteii* of the Alimentar} Camd." 



I'arasitold-ry, xii. 3, p. 25:3. 

 Hall, M. C lUlt). "Nematode Parasites of Mammals of the Orders 



Kodentia, Lagouiorpha, and llyracoidea." Proc. U.S. Nat. Mus. 



1. p. 1. 

 Ijnstoav, O. VON. 1884. " llelminthologisches." Arch. f. Natiirg. 1. 



]}d. i. p. 125. 

 . 1899. " Nematoden aus der Berliner zoolof^iscbeu Sanimlung." 



Mitt. Zool. Mus. lierlii), i. 2, p. 3. 

 . 1909. " Parasitische Nematoden," in Brauer, ' Die Sii.s&wasser- 



fauna Deutschlands,' Jena, Ileft 1.5. 

 Sambon, L. W. 1907 a. Abstr. Proc. Zool. Soc. (March 26) p. 1/5. 

 , 1907 h. " 1 )esc)'iptiou8 of aome new Species of Animal Parasites." 



Proc. Zool, Soc. p. 282, 

 Schnkhjeh, A, 18GG. * Mouographie der Nematoden.' Berlin. 

 Smit][, A. J. 1908. "Synopsis of Studies in Metazoan Para.sitolngy in 



McManes Lahoratorv of Patholno-v, University ot Penn.sylvaiiia." 



Univ. Pennsylv. Med. Bull. Philadelphia, xx, 12, p. 2G2. 



