A, Limnocythere inopinata; B, Potamocypris arcuata; C, P. fallax; D, P. smaragdina; E, P. variegata; F, P. villosa; G, Prionocypris zenkeri; H (Left valve external view), I (Right valve internal view) of Pseudocandona albicans; J, Psychrodromus fontinalis; K (Right valve external view), L (Left valve external view) of P. olivaceus; M, N, Pseudostrandesia n. sp.; O (posterior margin), Candona weltneri; P (valve surface), Ilyocypris gibba.