24 BULLETIN 81, UNITED STATES NATIONAL MUSEUM. 



BROCHOCERCA Werneck. 



Brochocerca Werneck, Monatsber. Akad. Wiss. Berlin, 1841, p. 377; no species named. 



CALLIDINA Ehrenberg. 



Callidina Ehrenberg, Abh. Akad. Wiss. Berlin, 1830, p. 48. 

 Type (monotype). — Callidina elegans Ehrenberg. 



As the type of Fhrenberg's genus Callidina is insufficiently described, 

 and, as shown conclusively by Bryce in his recent revision of the 

 Bdelloida, is not congeneric with the species listed by him under that 

 name, these have been transferred to the genus Macrotrachela MUne. 

 As a consequence, the genus Callidina Ehrenberg becomes a harbor 

 of refuge for a motley assemblage of doubtful and insufficiently 

 described species. 



Callidina bihamata Gosse, Hudson and Gosse, Rotifera, 1886, vol. 1, p. Ill, pi. 10, fig. 7. 

 Callidina cornuta Perty, Mitth. Naturf. Ges. Bern, 1850, p. 21. 

 Callidina elegans Ehrenberg, Abh. Akad. Wiss. Berlin, 1830, p. 48. 

 Callidina elegans rosea Perty, Zur Kenntn. Kleinst. Lebensf., 1852, p. 43. 

 Callidina hexaodon Ehrenberg, Monatsber. Akad. Wiss. Berlin, 1848, p. 380. 

 Callidina hexodonta (Bergendal). 



Philodina hexodonta Bergendal, Acta Univ. Lundensis, vol. 28, 1892, sec. 2, No. 

 4, p. 24. 



Callidina hexodonta Murray, Trans. Royal Soc. Edinburgh, vol. 45, 1906, p. 174, 

 pi. 3, fig. 13. 

 Callidina holzingeri Zelinka, Zeitschr. Wiss. Zool., vol. 53, 1891, p. 44. pi. 6, fig. 132. 

 Callidina Isevis Bergendal, Acta Univ. Lundensis, vol. 28, 1892, sec. 2, No. 4, p. 29, 



pi. 1, fig. 5. 

 Callidina lejeunise Zelinka, Zeitschr. Wiss. Zool., vol. 53, 1891, p. 44, pi. 6, fig. 131. 

 Callidina lutea Zelinka, Zeitschr. Wiss. Zool., vol. 53, 1891, p. 2. 

 Callidina mulleri Zelinka, Zeitschr. Wiss. Zool., vol. 53, 1891, p. 44. pi. 6, fig. 124. 

 Callidina octodon Ehrenberg, Monatsber. Akad. Wiss. Berlin, 1848, p. 380. 

 Callidina ornata Murray, Ann. Scottish Nat. Hist., 1902, p. IGG, pi. 3. 

 Callidina pigra Gosse, Journ. Royal Micr. Soc, 1887, p. 4, pi. 2, fig. 14. 

 Callidina quadridens Hilgendorf, Trans. New Zealand Inst., vol. 31, 1899, p. 113, 



pi. 8, fig. 2. 

 Calidina rediviva Ehrenberg, Infusionsth., 1838, p. 500. 

 Callidina socialis Kellicott, Proc. Amer. Soc. Micr., vol. 9, p. 91. 

 Callidina tentaculata Bergendal, Acta Univ. Lundensis, vol. 28, 1892, sec. 2, No. 4, 



p. 30. 

 Callidina tetraodon Ehrenberg, Monatsber. Akad. Wiss. Berlin, 1848, p. 380. 

 Callidina triodon Ehrenberg, Monatsber. Akad. Wiss. Berlin, 1848, p. 380. 



Genus CEPHALODELLA Bory de St. Vincent. 



Cephalodella Bory de St. Vincent, Class. Anim. Micr., 1826, p. 43=Diglena Ehren- 

 berg, Abh. Akad. Wiss. Berlin (for 1829), 1830, p. 8. 

 Type (by present designation).— CepAaZocfeZZa catellina (MiiWer) = Cercaria catellina 

 Miiller. 



CEPHALODELLA CATELLINA (Miiller). 



Cercaria catellina Mtjller, Anim. Infus., 1786, p. 130, pi. 20, figs. 12, 13. 

 Vorticella larva Mijller, Anim. Infus., 1786, p. 286, pi. 40, figs. 1-3. 

 Furcocerca catellina Lamarck, Hist. Nat. Anim. sans Vert., vol. 1, 1815, p. 448. 

 Furcularia larva Lamarck, Hist. Nat. Anim. sana Vert., vol. 2, 1816, p. 37. 

 Cephalodella catellina Bory de St. Vincent, Class. Anim. Micr., 1826, p. 43. 



