3Schad GA. Studies on the genus Kalicephalus ( Nemato- da: Diaphanocephalidae) : Ⅱ. A taxonomic revision of the genus Kalicephalus Molin, 1861 [ J]. Canadian Journal of Zoology. 40(6) : 1035 - 1165.
5Anderson RA. Keys to the Nematode Parasites of Verte- brates: Archival volume[ M]. CABI, 2009.
6Schad G.A. Studies on the genus Kalicephalus ( Nemato- da: Diaphanocephalidae). I. On the life histories of the North American species K. parvus, K. agkistrodontis and K. rectiphilus. [J]. Canadian Journal of Zoology, 1956, 34:425 - 452.