On the Classification of the Ascaridae. II. The Polydelphis Group; with some account of other Ascarids parasitic in Snakes

Abstract

The Ascarids parasitic in snakes present considerable difficulties from the systematic point of view, owing to the incomplete character of many of the descriptions, and to the state of confusion which has long existed in the nomenclature. The writer has made an attempt, by examining such material as was available, and by comparing a number of the existing descriptions, to clear up some of this confusion. It was hoped also that such a comparative treatment would throw some light on the systematic value of the modifications of the female genital apparatus, which occur in some of these forms.