Description of Thuricola valvata
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Loricate peritrich, lorica subcylindrical, truncate posteriorly, four or five times as long as broad, internally at some distance from its aperture is an oval valve-like organ, which, retracts when the ciliate contracts, effectually protecting it from intrusion from without. Body hyaline, capable of extension for about one-third of its total length beyond the orifice of the lorica. Length of lorica 127 microns.
