254 APPENDIX TO NEMATODA 



Hab. Stomach of a Reptile (Pseudopus). 

 Genotjrpe : S. [Taenia] spirillum (Pallas, 1781). 



Pallas, 1781, N. nord. Beytr. z. phys. u. geogr. Erd.-u. 

 Volkerbeschr., etc., St. Petersburg & Leipzig, i. 111 ; Rudolphi, 

 1809, Entozoorum . . . Historia Naturalis, ii (1), 98; 1819, 

 Entozoorum Synopsis, 227 ; de Blainville, 1828, Diet. Sci. nat., 

 Paris & Strasburg, Hi, 539 ; Nordmann, in Lamarck, 1840, 

 Hist. nat. des. Anim. sans Vert., Paris, 6G0; Dujardin, 1845, 

 Hist. nat. des Helminthes, Paris, 40. 



This worm, if indeed it be a worm at all, appears possibly 

 to have some affinity with the Trichinellidae, and may be a 

 member of the subfamily Trichurinae. It seems, however, 

 extremely doubtful whether it is a Nematode. Rudolphi 

 (1809) mentions its curious rigidity and compares its consist- 

 ency with that of horn or of the chitin of insects. Nothing is 

 known of the internal anatomy, and we do not feel justified 

 in referring the genus to a definite systematic position. 



14. Spherurus Rafinesque, 1815. 



This is a nomen nudum, the genus being proposed for the 

 reception of species of Ascaris (sens, lat.), but no species being 

 named. 



Rafinesque, 1815, Analyse de la Nature, Palermo, 151. 



15. Trachynema Cobb, 1920 ( ?). 



We have been unable to find any reference to this name 

 except that of Cobb (1920, Contr. Sci. Nematol., ix, 250), 

 where the oesophagus of Xenolaimus is comjiared with that 

 of " Trachynema." No species is mentioned, and the name 

 appears to be a nomen nudum. 



16. Vetteria Jagerskiold, 1915. 



We have been unable to trace the original reference to this 

 genus. According to Micoletzky (1922, Arch. J. Naturg., Abt. A, 

 Ixxxvii, 120) it has a single species, V. robusta, which is a 

 nomen nudum. 



17. Vibrio Miiller, 1773. 



This genus included not only Nematodes but several Pro- 

 tozoa. The genotype is, according to Stiles & Hassall, very 

 doubtful. The name is a partial synonym of Anguillula and 

 possibly of other genera. 



Miiller, 1773, Vermium terrestrium . . . Historia, i (1), 39. 



The following names also occur in the literature of the 

 Nematoda, but appear to have been applied to objects that 

 cannot be recognized as Nematodes : — 



