D. BRYCE ON A NEW CLASSIFICATION OF THE BDELLOID ROTIFERA. 73 



SYNOPSIS OF THE FAMILIES, GENERA, 

 AND SPECIES. 



/Fam, Adinetidae 



ORDER 

 BDELLOIDA 



Philodixidae^ 



MiCRODINIDAE 



/Gen Bradyscela gen. no v. 



I Adinbta Hudson and Gosse. 



Ceratotrocha gen. nov. 



ScEPANOTROCHA gen. nov. 



Habrotrocha gen. nov. 



Callidina Ehr. 



Rotifer Schrank. 



DissoTRocHA gen, nov. 



Pleuretra gen. nov. 



Embata gen. nov. 



Philodina Ehr, 



Abrochtha gen, nov. 



Discopus Zel, 



Anomopus Piov. 



Mniobia gen. nov. 



MiCRODiNA Murray. 



BDELLOIDA, 



An Order of the Sub-class Digononta Plate 27 

 (Potifera with two Ovaries). 



Potifera, with spindle-shaped, maggot-like bodies of numerous 

 segments, those of the anterior and posterior extremities tele- 

 scopically retractile within those of the central body; having 

 ramate jaws, a more or less developed rostrum, and a con- 

 tractile cloaca. Males unknown. 



I. Family Adinetidae. 



Bdelloids, with usually imperfect non-revertile rostrum. 

 Corona consisting of a prone surface clothed with short ciha 

 (which create no vortices), and non-retractile within mouth. 



Two genera. 



Bradyscela gen. nov. 

 Foot stout, with three toes, spurs modified or absent. 



B. clauda (Bryce) 36. 



