48 BULLETIN 81^ UNITED STATES NATIONAL MUSEUM. 



FILINIA CORNUTA (Weisse). 



Triarthra cornuta Weisse, Bull. Phys.-Math. Acad. Sci. St. Petersbiirg, vol. 6, 1847, 



p. 110, figs. 5-13. 

 Triartha breviseta Gosse, Ann. Mag. Nat. Hist., ser. 2, vol. 8, 1851, p. 200. 



FILINIA LONGISETA (Enrenberg). 



Triarthra longiseta Ehrenberg, Abh. Akad. Wiss. Berlin (for 1833), 1834, p. 222, 



pi. 8, fig. 1. 

 Triarthra terminalis Plate, Jenaische Zeitschr. Naturw., vol. 19, 1886, p. 19. 

 Pedetes saltator Gosse, Hudson and Gosse, Rotifera, 1886, vcl. 2, p. 8, pi. 13, fig. 10. 



As pointed out by Wesenberg-Lund, this was evidently a longiseta with the 



posterior spine broken off. 

 Triarthra longiseta limnetica Zacharias, Forschungsber. Biol. Stat. Plon, vol. 1, 



1893, p. 23. 



Triarthra thranites Skorikov, Trav. Soc. Natural. Charkov., vol. 30, 1896, p. 277, pi. 7, 



figs. 5, 6. 



FILINIA PASSA (Miiller). 



Brachionus passus Muller, Anim. Infus., 1786, p. 353, pi. 49, figs. 14-16. 



Filinia passa Bory de St. Vincent, Diet. Class. Hist. Nat., vol. 6, 1824, p. 507. 



Filina millleri Bory de St. Vincent, Class. Anim. Micr., 1826, p. 69. Type (mono- 

 type) of genus Filina Bory de St. Vincent, 1826= Brachionus passus renamed. 



Triarthra mystadna Ehrenberg, Abh. Akad. Wiss. Berlin (for 1831), 1832, p. 138. 

 Type (monotype) of genus Triarthra Ehrenberg, 1832. 



Genus FLOSCULARIA Cuvier. 



Floscularia Cuvier, Tabl. Elem. Hist. Nat., 1798, p. Q64= MeUcerta Schrank, Fauna 

 Boica, vol. 3, pt. 2, 1803, p. 310= Tuhicolaria Lamarck, Hist. Nat. Anim. sans 

 Vert., vol. 2, 1816, p. 53; not Floscularia Ehrenberg, 1832. 

 Type (by present designation). — Floscularia ringens (Lmnsevis)=Serpula ringens 

 Linnseus. 



Cuvier's description is as follows : 

 Les genres des zoophytes sont : 



I. Les Flosculaires (Floscularia). 



La tige est im petit tube conique, simple, qui parolt, au microscope, compost de 

 pieces hexagones, toutes marquees d'un point. L'animal est un rotif^re, mais il ne 

 parolt pas intimement li^ d son etui, et peut-etre auroit-on dh le placer ailleurs 

 q'ici. La tfete paroit comme une fleur a quatre lobes qui tourneroit perpetuellement 

 dans le meme sens. On le trouve dans I'eau douce, sur les feuilles, etc. Quelquefois 

 de nouveaux tubes se fixe contre le premier. 



While the transfer of the name Floscularia is regrettable, there 

 appears to be no help for it; Cuvier's description is so unmistakable, 

 that no one is likely to question the identity of the animal. In fact, 

 given the same amount of space, it would be difficult to improve 

 upon it. That it should have been so completely forgotten, is rather 

 remarkable. Ehrenberg's silence on this point is inexplicable, as he 

 refers to Cuvier's Tableau Elem. Hist. Nat. in other places. 



