SYNOPSIS OF THE KOTATORIA. 11 



ALPHABETIC ARRANGEMENT OF GENERA, WITH INCLUDED SPECIES. 



Genus ABROCHTHA Bryce. 



Abrochtha Bryce, Journ. Quekett Micr. Club, ser. 2, voL 11, 1910, p. 77. 



Type (monotype). — Abrochtha intermedia (de BesMch.&,m-p)=Philodina intermedia de 

 Beauchamp. 



ABROCHTHA INTERMEDIA (de Beauchamp). 



Philodina intermedia de Beauchamp, BuK. Soc. ZooL France, voL 34, 1909, p. 75, 



text fig. 

 Abrochtha intermedia Bryce, Journ. Quekett Micr. Club, ser. 2, vol. 11, 1910, p. 77. 



^ACANTHODACTYLUS Tessin. 



Acanthodactylus Tessin, Arch. Naturg. Mecklenburg, vol. 43, 1890, p. 152; not 

 Acanthodactylus Wiegmann [Herpetologia Mexicana, p. 10 (=Fitzinger, manu- 

 script name)], 1834, Reptilia. 



Genus ACYCLUS Leidy. 

 Acyclus Leidy, Proc. Acad. Nat. Sci. Philadelphia, 1882, p. 245. 

 Type (monotype). — Acyclus inquietus Leidy. 



ACYCLUS INQUIETUS Leidy. 



Acyclus inquietus Leidy, Proc. Acad. Nat. Sci. Philadelphia, 1882, p. 245, pi. 2, figs. 1-6. 



ACYCLUS TRILOBUS (Lucks). 



Hyalocephalus trilobus Lucks, Zool. Anz., vol. 38, 1911, p. 568, text fig. Type (mono- 

 type) of genus Hyalocephalus Lucks, IDll. 

 Acyclus trilobus de Beauchamp, Bull. Soc. Zool. France, vol. 37, 1912, p. 247. 



ADACTYLA Barrels and Daday. 

 Adactyla Barrois and Daday, Math. Term. Ert., vol 12, 1894, p. 227; not Adactyla 

 Zeller, 1841, Lepidoptera. 



Genus ADINETA Hudson. 

 Adineta Hudson, Hudson and Gosse, Rotifera, 1886, vol. 1, p. 112= Planotrochus 

 Plate, Zeitschr. Wiss. Zool., vol. 43, 1886, p. 235. 

 Type (monotyi^e). — Adineta vaga (Davis)= Callidina vaga Davis. 



Dalla Torre, in Zeitschr. des Ferdinandeums, ser. 3, vol. 33, 1889, 

 p. 244, footnote to Adineta vaga, makes tlie following statement: 



Der Name Adineta Hudson scheintftirdiese Art hier 1886 zum ersten Male aufgestellt 

 und angewendet worden zu sein, wobei dem Autor wohl entgangen sein mag, dass 

 bereits vor zwolf Jahren Plate im Monthl. Micr. Jour., vol. 9, 1873, p. 235, Nota, 

 fiir dieselbe den Gattungsnamen Planotrochus aufgestellt hat. Freilich fehlt dieser 

 Name sow. im Zool. Record, 1873, als auch in Scudder, 1882. 



The reference cited proved on comparison erroneous. I am 

 indebted to Mr. James Murray for the correct citation as well as 

 the information that Hudson's name Adineta antedates the publica- 

 tion of Plate's Planotrochus by about one month. 



ADINETA BARBATA Janson. 



Adineta barbata Janson, Uebers. Rot.-Fam. Philodiniien, 1893, p. 74, pi. 5, figs. 70, 



71, 78. 



ADINETA GRACILIS Janson. 



Adineta gracilis Janson, Uebers. Rot.-Fam. Philodinaen, 1893, p. 77, pi. 5, figs. 76, 77. 



1 Those titles that do not carry the word genus, do not belong to the Rotatoria or are invalid through 

 homonymy, synonymy, or insufficient description of the type. 



