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Development of Muellerius capillaris (Nematoda) larvae in three Helicella (Mollusca) species under laboratory conditions

AuthorsManga-González, M. Yolanda CSIC ; Morrondo-Pelayo, M. Patrocinio
Muellerius capillaris
Experimental infection
Molluscs - intermediate hosts
Issue Date1989
CitationHelminthologia 26(1): 21-33 (1989)
AbstractThe experimental susceptibility of Helicella bierzona, Helicella (Helicella) itala and Helicella ordunensis to Muellerius capillaris larvae was studjed for the first time. The molluscs were collected in the province of León (Spain). In order to determine the suitability of these molluscs as intermediate hosts for this parasite, 149 snails were experimentally infected. They were then killed between 6 and 41 days post-infection, so that the larval development of the parasite could be traced. The number of larvae that penetrated each mollusc, how many of these developed and how many reached larvae III were taken into account. The length of time taken for the first larvae II and the first larvae III to appear, and that taken for all of them to reach the third stage were also considered. Based on the above, we be!ieve that Helicella (H.) itala and Helicella ordunensis are suitable intermediate hosts, which is not the case of Helicella bierzona. One way analysis of variance has shown that there exist highly significant interspecific differences, in the percentages of penetration, number of larvae (I + II + III) and larvae III, among the three species of Helicella.
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