EN
Redescription of Chronogaster boettgerii Kischke, 1956 is provided. The male of this species was found for the first time, and herein is described and illustrated. Chronogaster boettgeri Kischke, 1956 is distinguished by its amphids circular at the surface and forming a single spiral with a dorsal break, presence of 3 caudal glands arranged in tandem, absence of lateral longitudinal lines, lack of vacuolated lateral glandular bodies, tail tip of female with single, almost ventral and straight mucro; male is distinguished by tail terminus devoid of mucro and absence of tuboid preanal supplements.