STUDIES ON THE GENUS KALICEPHALUS (NEMATODA: DIAPHANOCEPHALIDAE): I. ON THE LIFE HISTORIES OF THE NORTH AMERICAN SPECIES K. PARVUS, K. AGKISTRODONTIS, AND K. RECTIPHILUS

Abstract

The life histories of Kalicephalus parvus, K. agkistrodontis, and K. rectiphilus were investigated experimentally. Differences between the three species are noted in histotropism and rate of development. The parasitic third stage of K. parvus is given special attention, as is the development of its genital and spicular primordia. Infection per os was successful in all three species. Skin penetration may also occur. The mode of infection in nature is discussed.