
Ten images stitched to show whole creature
(MS ICE with some manual cloning)

Detail of corona

Detail of corona

Detail of tail aperture

Mastax
- difficult to get a clear image in a live individual

Mastax of B. urceolaris
From A key to British Freshwater Planktonic Rotifera, Rosalind M Pontin, FBA 1978
- I therefore suspect this may be B. urceolaris
All images:
Microscope: Zeiss Standard
Objective: Leitz NPL Fluotar 40/0.7 ICT
Ocular: Zeiss KPL-W 10/18
Substage: Leitz ICT NA 0.9
Sample from Horsham Motte & Bailey moat
21-Apr-2013