188
MARINE MOLLUSC'S AS HOSTS FOR SYMBIOSES
A
FIGS. 92-100. Some thigmotrichous ciliates. (92) The infraciliature of Ancistrospira
showing oral ciliature on right of animal with typical counterclockwise pattern
(redrawn after MacKinnon and Hawes, 1961) ; (93) Conchophthirus mytili, ventral
view (redrawn after Kidder, 1933a) ; (94) Crebricoma kozlofi, ventral view; (95)
anterior end of C . kozZo$i showing dorsal origin of some left-hand kineties (redrawn
after Kozloff, 1946a); (96) C. carinata, right view; (97) C . carinata, ventral view
(redrawn after Raabe, 1934) ; (98) Raabella helensis forma major, ventral view; (99)
R. helensis forma minor, dorsal view (redrawn after Raabe, 1933) ; (100) Isocomidea
mytili, ventral view (redrawn after Chatton and Lwoff, 1922a).