Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Some trematodes of reptiles from Laos.

Abstract

In 51 reptiles of 17 species collected in Vientiane province, Lao, 3 species of trematodes, Paradistomum geckonum, Encyclometra bungara and Postorchigenes majeedi were recorded for the first time. The snake Enhydris plumbea represents a new definitive host of Encyclometra bungara; this parasite has hitherto been recorded only in India. Mabuya multifasciata is a new definitive host of Paradistomum geckonum, and Gekko gecko, Hemidactylus frenatus and Cosymbotus platyurus are new host records for Postorchigenes majeedi. The study of Paradistomum geckonum specimens from different hosts revealed great morphological and metrical variation within this species, particularly in the shape and size of the body. These morphological characters seem to be influenced not only by the state of maturation of helminths and host species but also by the size of individual hosts. The species Postorchigenes indicus and P. rishikeshii are considered to be synonyms of P. majeedi.