466 THE ANIMAL PARASITES OF MAN 



Toxascaris limbata, Railliet and Henry, 1911. 



Syn. : Lumbricus cam's, Werner, 1782 ; Ascaris teres, Goeze, 1782 ; Ascaris cati 

 et caniculce, Schrank, 1788 ; Ascaris cam's et felts, Gmelin, 1789 ; Ascaris tricuspidata 

 et felis, Bruguiere, 1791 ; Ascaris vuerneri, Rud., 1793; Fusaria my s tax, Zeder, 

 1800 ; Ascaris marginata et mystax, Rud., 1802 ; Ascaris alata, Belling ham, 1839. 



Striations 6 //, to 12 /i, apart. Cephalic wings long, narrow, semi- 

 lanceolate. Male, 4 to 6 cm. Spicules, 1,002 //, and 1,005 A*- 

 Female, 0*5 to 10 cm. Eggs, 75 /j, to 85 //,, shell thick and smooth. 

 Host : dog, occasionally man. 



FIG. 343. Ovum FIG. 344. Transverse section through the head 



of Toxascaris lini- part of Belascaris cati from the cat, with the lateral 



bata, with thin albu- wings. In addition, one may note the four fields of 



minous envelope. muscles, the longitudinal lines with the oesophagus 



Magnified. in the centre. Magnified. (After Leuckart.) 



Genus. Belascaris (/3e'Xo9, an arrow), Leiper, 1907. 



Body anteriorly bent ventrally, cuticle coarsely striated. 

 (Esophagus with a distinct bulb. Tail of male conical. A papillce- 

 bearing protuberance behind the anus. Testis in anterior half of body. 

 Vulva in anterior part of body. Eggs corrugated. 



Belascaris cati, Schrank, 1788. 



Syn. : Belascaris mystax, Leiper, 1907 ; Ascaris mystax. 

 Striations 12 //, to 16 /A apart. Cephalic wings lanceolate. Male 

 3 to 6 cm. Spicules 17 to 1*9 mm. Female 4 to 10 cm. Eggs, 65 /M 

 to 75 //- in diameter, surface finely honeycombed. Host : domestic 

 cat, and man, eight or nine cases. 



Belascaris marginata, Rudolphi, 1802. 



Striations 16 /JL to 22 ^ apart. Cephalic wings long, narrow, semi- 

 lanceolate. Male, 5 to 10 cm. Spicules, 750 JJL and 950 p. Female, 

 9 to 18 cm. Eggs, 75 //, to 80 p. Shell finely honeycombed. Host : 

 dog. 



Genus. Lagocheilascaris, Leiper, 1909. 



Thick lips separated by a furrow from the body ; between the lips 

 small intermediate lips without "pulp." The cutting angle of each 

 lip bifurcated. Along each lateral line a cuticular wing extending the 

 whole length of the body. Eggs, thick shell with a mosaic pattern. 



