54 BUREAU OF ANIMAL INDUSTRY. 



Symplocostoma Bastian, 1865 (longicollis designated by Bastian ) , see p. 140. 



Sijnonchus Cobb, 1894 (fasciculalus designated by Cobb). 



Tachyhodites Bastian, 1865 (natans designated by Bastian). 



Trilobus Bastian, 1865 (gracilis designated by Bastian). 



Triodontophorus Looss, 1902 (serratus designated by Loose). 



Tripyla Bastian, 1865 (glomerans designated by Bastian). 



Tripyloides de Man, 1886 (vulgaris designated by de Man). 



Tylencholaimus de Man, 1876 (mirabilis designated by de Man). 



Tylenchus Bastian, 1865 (davainii designated by Bastian). 



Viscosia de Man, 1890 (viscosus designated by de Man), see p. 149. 



Zoniolaimus Cobb, 1898 (setifera designated by Cobb). 



In still other cases the type has been designated by other than the 

 original author. Several of these cases it will be well to examine 

 rather closely: 



Acanthocephalus Koelreuter, 1771a (Echinorhynchus anguillas designated by Luehe, 

 1905, 329). 



Angiostoma Dujardin, 1845 (limacis designated by Schneider), see p. 34. 



Anisakis Dujardin, 1845, 220; type ''simplex" misdet. = dwsswmem designated by 

 Stiles & Hassall, 1899, 103. 



AnguUlula Hemprich & Ehrenberg, 1828; aceti was designated as type by Bastian, 

 1865c, 110, but since this was not among the original species of AnguUlula Ehren- 

 berg [not Mueller], this designation can not hold. For fuller discussion of this case, 

 see p. 34. 



Cucullanus Mueller, 1777; elegans was designated as type by Dujardin, 1845a, 245. 

 Mueller, 1777, is not accessible to us, and we find it somewhat difficult to judge this 

 case from later literature. 



Oncholaimus Dujardin, 1845; attenuates has been designated as type by Bastian, 

 1865c, 100, and de Man, 1886, 9. This is a rather complicated case, involving the 

 principle of elimination and can best be discussed under that head. See p. 62. 



Paragordius Camerano, 1897; varius is the only species of Paragordius Montgomery, 

 proposed independently as a new genus. This may also be interpreted as designa- 

 tion of type for Paragordius Camerano. 



Uncinaria Froelich, 1789; vulpis was designated as type by Stiles & Hassall, 1899, 

 164; melis was designated as type by Looss, 1902. 



Our reasons for designating vulpis as type of Uncinaria were the 

 following: Frcelich mentioned two species, melis and vulpis; he exam- 

 ined vulpis but not melis; he figured vulpis (Goeze had figured melis); 

 he was accordingly personally acquainted with vulpis, while melis he 

 knew only through Goeze's writings; his description of the lips of 

 vulpis is far clearer than any idea of the lips he could have obtained 

 from Gceze's figures, and this applies also to the rest of the worm. 

 Now, when an author proposes a new genus, his conception of the 

 genus is greatly influenced by what he sees in the species he examines, 

 and on this account, other things being equal, we consider it best to 

 take as type a species which the author has personally examined 

 rather than one he knows only from the literature (except, of course, 

 in cases of type by inclusion). We see nothing in Frcelich's account 

 which convinces us that he was influenced more by melis than by 

 vulpis; hence, vulpis was designated as type. 



