Description of Litonotus lamella:
Ciliate, shape and sigmoidal, broad in middle, elongate anterior tapers. About one third of body contractile, causing broadening of neck region. Right side flat, left side slightly to strongly convex in middle depending on nutritional state. Posterior often with longitudinal fold directed to dorsal margin, seldom simply rounded. Anterior thorny extension slightly to left of midline, very constant in vivo but often not noticeable in protargol-impregnated specimens. Macronuclear segments lie close together or overlapping, spherical to ellipsoidal. Micronucleus spherical, never between but always close to both macronuclear segments. Contractile vacuole subterminal, located close to dorsal margin of body. Extrusomes 5 microns long, gently curved. Pellicle and endoplasm colourless. Depending on nutritional state, cytoplasm containing few to many colourless spheres 1-5 microns in diameter and several larger food vacuoles about 10 microns in diameter with undefined content. Movement is a slow gliding, very flexible crawler amongst detritus. Cilia about 8 microns long, some forming mane near oral region. Infraciliature typical for genus. First perioral kinety with two to three simple basal bodies at anterior end. No somatic basal bodies at posterior end of second perioral kinety.