Paras. 1:2 



Tylenchorhynchus lenorus Brown, 1956. T. lenorua keys to 

 t". ornntus , according to the key (Allen, 1955 )» but differs from 

 it in having a set-off lip region, a conoidobtuse tail, and 

 fewer longitudinal striae. T. lenorus differs from T. quadri - 

 fer in having fewer longitudinal striae and from T. tessalatus 

 in being smaller in size and having no axmulations around 

 terminus of tail. 



Three other new species' descriptions have been submitted to Nematologica 

 by Bruce E. Hopper. It is likely that additional taxonomic work will be 

 done by others as this plant-parasitic group is investigated more fully. 



Literature Cited 



1. Allen, M. W. 1955. A review of the genus Tylenchorhynchus . Univ. 



of Calif. Public, in Zoology 61(3) :129'^^lSS^ 



2. Brown, G. L. 1956. Tylenchorhynchus lenorus , n. sp. (Nematoda: 



Tvlenchida), associated with the roots of wheat. Proc. 

 Heiminthoi. Soc. V/asn. ^jju) :152-153. 



3. Fielding, M. J. 1956. Tylenchorhynchus martini , a new nematode 



species found in the sugar cane and rice fields of Louisiana 

 and texas. Proc. Heiminthoi. Soc. Wash. 23(l):U7-U8. 



h. Grahajn, T. W. 195U. The tobacco stunt nematode in South Carolina, 

 (Abs.) Phytopathology hi;: 332. 



5. Graham, T. W. 195h. Plant abnormalities caused by parasitic nema- 



todes. U. S. Dept. Agr. Plant Dis. Rptr. Supplement 227, p. 83. 



6. Reynolds, Harold W. and Milton fl. Evans. 1953. The stylet nematode, 



Tylenchorhynchus dubius , a root parasite of economic importance 

 in the southwest. U. S. Dept. Agr. Plant Dis. Rptr. 37:5UO-5Uh. 



7. Steiner, G. 1937. Tylenchorhynchus claytoni , an apparently rare 



nemic parasite of the tobacco plant. Proc. Heiminthoi. Soc. 

 Wash. J4(1):33-3U. 



8. Thorne, Gerald. 19U9. On the classification of the Tylenchida, a 



new order (Nematoda, Phasmidia). Proc. Helminthpl. Soc. Wash. 

 16(20) :37-73. 



