Art. 6 TWO NEW NEMATODES WALTON O 



Travassos (1930) argues that Rhabdias ranae Walton, 1929, is in 

 reality Rhabdias entomelas (Leidy, 1851) Travassos, 1930. The 

 original description by Leidy might refer to any species of the genus 

 Rhabdias, and since there are several species reported from the United 

 States it seems impossible to determine which one of these Leidy 

 might have had at hand. It is evident that Leidy recognized that 

 his form was not Rhabdias bufonis, but until better proof is offered, 

 it can not be stated a priori that the first modern description of a 

 species of Rhabdias other than R. bufonis from North American frogs 

 must necessarily be a redescription of the Ascaris entomelas of Leidy, 

 1851. 



6 . Oswaldocruzia leidy i Travassos , 1917. From Pseudacris feriarum , 

 Virginia, U.S.N.M. Helm. Coll. No. 19414. The other reported hosts 

 are Bujo americanus and Hyla cinerea, both from the United States. 



REFERENCES 



Steiner, G. 



1924. Some nemas from the alimentary tract of the Carolina tree frog {Hyla 

 carolinensis Pennant). Journ. Parasitology, vol. 11, pp. 1-32, pis. 

 1-11. 

 Travassos, Lauro. 



1917. Trichostrongylinas brazileiras, Oswaldocruzia, n. gen. Brazil-Medico, 



vol. 31, no. 9, p. 73. Mar. 3. 

 1930. Pesquizas helminthologicas realisadas em Hamburgo VII. Notas 

 sobre os Rhabdiasoidea Railliet, 1916. Mem. Inst. Oswaldo Cruz, 

 vol. 24, no. 3, pp. 161-181, 42 figs. 

 Walton, A. C. 



1929. Studies on some nematodes of North American frogs. I. Journ. 



Parasitology, vol. 15, pp. 227-240, pis. 16-20. 



1930. Studies on some nematodes of North American Amphibia. II. Crypto- 



branchidae. Journ. Parasitology, vol. 19, pp. 20-24, 1 pi. 



1931. A new parasite of Philippine Amphibia. Philippine Journ. Sci., 1931, 



pp. 351-353, 1 fig. 



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