26 BULLETIN 81, UNITED STATES NATIONAL MUSEUM. 



CERCARIA Muller. 



Cercaria Muller, Verm. Terr. Fluv., vol. 1, pt. 1, 1773, p. 64. 



Type (by present designation). — Cercaria lemna Muller. To Trematoda. 



Cercaria lemna Muller, Verm. Terr. Fluv., vol. 1, pt. 1, 1773, p. 67. 



Genus CHROMOGASTER Lauterborn.^ 



Chromogaster Lauterborn, Zool. Jahrb., Syst., vol. 7, 1893, p. 266. 

 7)/pe (monotype). — Chromogaster testudo Lauterborn. 



CHROMOGASTER OVALIS (Bergendal). 



Anapus ovalis Bergendal, Acta Univ. Lundensis, vol. 28, 1892, sect. 2, No. 5, p. 1. 

 Sacculus cuirassis Hood, Int. Joum. Micr. Nat. Sci., vol. 13, 1894, p. 355, pi. 17, figs. 

 1^. 



CHROMOGASTER TESTUDO Lauterborn. 



Chromogaster testudo Lauterborn, Zool. Jahrb., Syst., vol. 7, 1893, p. 266, pi. 11, 



figs. 7, 8. 

 Ascomorpha testudo Zacharias, Forschungsber. Biol. Stat. Plon, vol. 2, 1894, p. 84, 



pi. 2, fig. 4. 

 Anapus testudo Weber, Rev. Suisse Zool., vol. 5, 1898, p. 764, pi. 24, figs. 18, 19. 



COCHLEARE Gosse. 



Cochleare Gosse, Hudson and Gosse, Rotifera, 1886, vol. 2, p. 111. Both of the species 

 of this "genus" are evidently male rotifers, too insufficiently described to assign 

 any definite position to them. 



Cochleare staphylinus Gosse, Hudson and Gosse, Rotifera, 1886, vol. 2, p. Ill, pi. 26, 



fig. 9. 

 Cochleare turbo Gosse, Hudson and Gosse, Rotifera, 1886, vol. 2, p. Ill, pi. 26, fig. 10. 



COLLOTHECA, new genus. 



Type. — Collotheca campanulata {Dohie)= Floscularia campanulaia Dobie. 



COLLOTHECA ALGICOLA (Hudson). 



Floscularia algicola Hudson, Hudson and Gosse, Rotifera, 1886, vol. 1, p. 54, pi. 1, 



fig. 3; pi. 2, fig. 1. 



Floscularia ambigua minor Hudson, Hudson and Gosse, Rotifera, 1886, vol. 1, pi. 2, 



fig. 1. 



COLLOTHECA AMBIGUA (Hudson). 



Floscularia ambigua, Hudson, Journ. Royal Micr. Soc, 1883, p. 163, pi. 4, fig. 1. 



COLLOTHECA ANNULATA (Hood). 



Floscularia annulata Hood, Sci. Goss., vol. 24, 1888, p. 9, figs. 



t Floscularia uniloba Wierzejski, Bull. Acad. Sci. Cracovie (foi 1892), 1893, p.403. 



COLLOTHECA ATROCHOIDES (Wierzejski). 



Floscularia atrochoides Wierzejski, Zeitschr. Wiss. Zool., vol. 16, 1893, p. 312, fig. 



1 Chromagaster Cobb, 1894, Nematoda (Proc. Linn. Soc. New South Wales, ser. 2, vol. 8 (for 1893); actual 

 date of publication April 13, 1894) is erroneously recorded as Chromogaster in Zool. Record, 1893. Lauter- 

 born 's name was published August 15, 1893. 



