200 BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



HARTERTIA ZAKHAROWI Skrjabin, 1920 



Host. — Primary: Lanius minor; secondary: Unknown, probably 

 insects. 



Location. — Intestine. 



Morphology.— Hartertia (p. 191) : Body massive, twisted in the 

 dorsal direction. Mouth with 2 prominent lateral lips, each of which 

 on close inspection is seen to consist of 3 lobes, a median and 2 sub- 

 median. Each of the 3 lobes is characterized on the inner surface by 

 specially formed prominences situated parallel to the outer edge of 

 the lobe. The prominences appear to be the probable homologue of 

 those (that is, probably the "pulp structure ") of the lips in several 

 species of ascarids. The most characteristic feature of this species 

 consists in the situation of the cephalic papillae. Each lip bears 5 

 cephalic papillae: in the lateral field, on the median lobe, is 1 large 



Fig. 271. — Hartertia rotundata. Ovejector. Aftek Seurat, 1914 



papilla and on the submedian lobes are 2 parallel pairs of papillae, 

 one above the other. 



Male unknown. 



Female 12 mm. long, the maximum width 1 mm., in middle of 

 body ; the width of the body at the posterior region of the esophagus 

 is 900/1,, at the level of the anus 400/x. Esophagus 3.5 mm. long. Anus 

 550/i from posterior end. 



Life history. — Unknown; probably similar to that of H. gallin- 

 arum (p. 197). 



Distribution. — Europe (Russia) . 



The present writer is indebted to Dr. Robert Formad for aid in 

 translating the Russian description of this species. As Doctor For- 

 mad is not well acquainted with technical terms of helminthology, 

 the writer has had to supply them by interpretation from the struc- 

 ture of other species of Hartertia, and the resulting description must 

 therefore be used with reservation. 



HARTERTIA ZORILLAE Seurat, 1919b 



Host. — A weasel, Zorilla lybica. 

 Location. — Under the skin. 



