FILAKIADiE. 11 



8. Spiroptera eurtoptera. 



Ascaris collurionis, Frolich, Naturforsch. xxix. 40, n. 16. 

 Spiroptera euryoptera, Rudolphi, Synopsis Entoz. 26 & 248, n. 20 ; 

 Dujardin, Hist. Nat. Helminth. 97. 



Hab. Coats of the stomach of the Lesser Shrike, Lanius minor. 



From the collection of M. Siebold. 



9. Spiroptera crassicauda. 



Spiroptera crassicauda, Creplin, Nov. Obs. de Entoz. 3 ; Mehlis, Isis, 

 1831, 74 ; Dujardin, Hist. Nat. Helminth. 101. 



Hab. Coats of the stomach of the Red-throated Diver, Colymbus 

 Septentrionalis. 



From the collection of M. Siebold. 



10. Spiroptera contorta. 



Ascaris testudinis, Rudolphi, Hist. Nat. Entoz. ii. pt. 1, 198, n. 67. 

 Spiroptera contorta, Rudolphi, Synopsis, 25 & 242, n. 12 ; Dujardin, 

 Hist. Nat. Helminth. 103. 



Hab. Stomach of the fresh-water Tortoise, Emys europcea. 



From the collection of M. Siebold. 



11. Spiroptera adunca. 



Spiroptera adunca, Mehlis, fide Siebold, MSS. ? 



Hab. Between the coats of the stomach of the Herring Gull, 

 Larus argentatus. 



From the collection of M. Siebold. 



12. Spiroptera, nov. sp., Siebold. 

 Hob. Abdomen of the Mole, Talpa europosa. 

 From the collection of M. Siebold. 



