KATHLANIIDAE 17 



unpaired lobe or interlabium. The two lateral and four 

 submedian cephalic papillae are situated on certain of the 

 accessory lobes, while each main lobe has a pair of very small 

 papillae on its inner surface. A buccal capsule present, 

 triangular in section and with three tooth-like structures at 

 its entrance. Tail of male ending in a long spike. A muscular 

 preanal sucker-like organ present. Caudal papillae sessile, 

 twenty-three in number (six pairs and one unpaired papilla 

 preanal, five pairs postanal). Spicules relatively short, sub- 

 equal, broadly alate. A large Y-shaped accessory piece 

 present. Vulva behind the middle of the body. The anterior 

 uterine branch turns to run posteriorly parallel with the other. 

 Eggs with thin, fuiely striated shell, containing embryos when 

 laid. 



Hab. Alimentary canal of marine Turtle (one species 

 know^l) . 



Genotype : K. {Ascaris] leptura (Rudolphi, 1819) (= K. 

 kathlena Lane, 1914). 



Rudolphi, 1819, Entozoorum Synopsis, 48 ; Lane, 1914, Ind. 

 Journ. Med. Res., Calcutta, ii, 664; Travassos, 1917, Brazil. 

 Med., Rio de Janeiro, No. 12 ; 1918, Rev. Soc. Brazil. Sci., ii, 84. 



2, Tonaudia Travassos, 1918. 



Head separated from body by a well-marked constriction, 

 the posterior margin of the head forming a sharp angle. 

 Lateral alae present. Lips and buccal capsule as in Kathlania. 

 Tail of male ends in a long spike, which is directed dorsally. 

 A muscular preanal sucker-like organ present. Eight pairs 

 of caudal papillae and an unpaired preanal papilla present. 

 Spicules extremely long and slender, reaching anteriorly to the 

 middle of the oesophagus when not extruded, and with 

 narrow alae. A Y-shaped accessory piece present, not 

 strongly chitinized. Vulva slightly behind the middle of the 

 body. Vagina very long and coiled. Female organs in other 

 respects as in Kathlania. 



Hab. Alimentary canal of marine Turtle (one species known). 



Genotype : T. [Kathlania] tonaudia (Lane, 1914). 



Lane, 1914, Ind. Journ. Med. Res., Calcutta, ii, 668; 

 Travassos, 1919, Rev. Soc. Brazil. Sci., 84. 



3. Spironoura Leidy, 1856. 



Syn. Spirura Diesing, 1861, nee Blanchard, 1849; Fal- 

 caustra Lane, 1915 ; Florencioia Travassos, 1919. 



Head frequently wider than neck, occasionally not distinct. 

 Lateral fields wide. Lateral alae absent. Lips entire, each 

 bearing two outer and two inner papillae. Oral cavity 

 supported by a continuous cuticular ring. Pharynx muscular, 



SYN. NEM. C 



