184 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



developed and their lateral lobes again subdivided into second a rv 

 external lobes, bearing a papilla. 



Male 5.47 to 6.86 mm. long by 210 to 260ju wide. Lateral ala 1.82 

 to 2.55 mm. long. Tail (fig. 253c?) 200 to 230/* long. Internal fold 

 of caudal alae completely covered with cuticular shields in longi- 

 tudinal series; they also cover the ventral surface of body to a dis- 

 tance 650/x anterior to the cloacal aperture. Cloacal lips large. 

 Eleven pairs of papillae, of which 4 are preanal, 7 postanal ; in addi- 

 tion a large unpaired papilla on left side of anterior edge of cloacal 

 aperture. Spicules (fig. 253e and /) unequal, 1.22 to 1.37 mm. and 

 340 to 410ju, long respectively. Gorgeret (fig. 253^), simple. 



Female 8 to 9.37 mm. long by 380 to 410/x wide. Lateral ala 1.77 

 to 1.94 mm. long. Tail (fig. 253A) 130 to 150^ long. Vulva difficult 

 to see, a little posterior to middle of body. Vestibule 610/x long. 

 Eggs 37/x long by 21/x wide, embryonated. 



Pig. 254. — Habronema tulostoma. a, Anterior end ; b, lateral lip ; c, dorsal 

 lip. After Seurat, 1914 



Life history. — Unknown; probably involving an insect as inter- 

 mediate host. 



Distribution. — France (Maine-et-Loire (La Chapelle St. Laud)). 



HABRONEMA TULOSTOMA (Hcmprich and Ehrenberg, 1866) Gendre, 1922 



Synonyms. — Spiroptera tulostoma Hemprich and Ehrenberg in 

 Schneider, 1866 ; Filaria tulostoma Schneider, 1866 ; Hahronenia uni- 

 lateralis (Molin, 1860) of Seurat, 1914/ misdet. 



Host. — Primary : Neophron percnopterus (Vultur percnopterus ) 

 and N. monachus; secondary : Unknown. 



Morphology. — Habronema (p. 172) : Body blood red in color; 

 cuticle finely striated transversely. Mouth with 4 lips, the 2 lateral 

 (fig. 254&) quadrangular, trilobed on inner surface, each lobe with 

 a tooth; dorsal and ventral lips (fig. 254c) have a median keel and 

 terminate anteriorly in a point. Cervical papillae anterior to nerve 

 ring, the left slightly more anterior than the right. One large lat- 

 eral ala (fig. 254a), originating slightly posterior to the left papilla, 

 finely striated transversely, extending along anterior half of body. 



