Paralagenophrys Clamp, 1987

Mayén-Estrada, Rosaura & Clamp, John C., 2016, An annotated checklist of species in the family Lagenophryidae (Ciliophora, Oligohymenophorea, Peritrichia), With a brief review of their taxonomy, morphology, and biogeography, Zootaxa 4132 (4), pp. 451-492 : 455

· Paralagenophrys Clamp, 1987

( Fig. 5 ) has a lorica aperture that is similar to that of Lagenophrys , but its body and lorica aperture are twisted obliquely clockwise. The result is a lorica aperture that is displaced nearly 90o to the right and aligned almost parallel to the long axis of the body. The single species of Paralagenophrys is the only lagenophryid that is not restricted to a crustacean host. It also occurs on aquatic vascular plants and animals other than crustaceans (e.g., pulmonate snails) ( Clamp 1987b).

Figures

FIGURE 5. Characteristics of Paralagenophrys and Setonophrys. A, Dorsal view of P. singularis. B. dorsal view of S. communis. C, lateral view of S. seticola showing contraction of the posterior lip of the lorica aperture against the rigid anterior lip to close the aperture. A, from Clamp 1987 b; B – C, from Clamp 1991. Abbreviations: AL, anterior lip of lorica aperture; LR, rim of lorica; LX, longitudinal axis of organism; PL, posterior lip of lorica aperture; PM, myoneme in edge of peristomial lip. All scale bars = 10 µm.