ClipArt ETC
"Paramecium in optical section. A, anterior end; c, tilia; e.d., ectosarc; e.n., endosarc; f.v., food "vacuole"; g, gullet; N, meganucleus; n, micronucleus; o, oral groove, leading to the mouth; p.v., pulsating vacuoles in different stages of contraction; tr., trichocysts; v, food vacuole in process of formation." — Galloway

Paramecium

"Paramecium in optical section. A, anterior end; c, tilia; e.d., ectosarc; e.n., endosarc; f.v., food…

"Paramoecium caudatum. A, the living animal from the ventral aspect; B, the same in optical section: the arrow shows the course taken by food-particles; C, a specimen which has discharged its trichocysts; D, diagram of binary fission; buc. gr, buccal groove; cort, cortex; cu, cuticle; c. vac, vontractile vacuole; f. vac food vacuole; gul, gullet; med, medulla; nu, meganucleus; pa. nu, micronucleus; trch, trichocysts." -Parker, 1900

Paramoecium Caudatum

"Paramoecium caudatum. A, the living animal from the ventral aspect; B, the same in optical section:…