�ber Zwischenwirte, Fehlwirte und die Morphogenese der Lippenregion bei Porrocaecum- und Contracaecum-Arten (Ascaridoidea, Nematoda)

Osche, Günther

doi:10.1007/bf00259736

Cited by 8 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With regard to the grouping proposed by Hartwich (1959) the two rodent species fall most nearly into the group which occurs in birds of prey, as they have no posterior processes on the anterior prolongations of the labial pulp. In the grouping proposed by Osche (1959), based on studies of the lifehistory of Porrocaecum species, the species which occur in raptorial birds and which are acquired by the definitive host through the ingestion of insectivores and rodents are regarded as more highly evolved than those occurring in invertebrateor fish-eating birds.…”

mentioning

confidence: 99%

The ascaridoid nematodes of rodents with a redescription ofPorrocaecum ratti

Sprent

1973

Parasitology

View full text Add to dashboard Cite

Two ascaridoid nematodes occurring in rodents in South-East Asia, namely Porrocaecum ratti and Toxocara mackerrasae, were compared; the former was redescribed. These and other ascaridoid species occurring in rodents were classified and it was suggested that relative to the other mammalian orders, the rodents are well endowed with ascaridoids. There is, as yet, insufficient evidence for conjecture as to whether species occurring in rodents represent primitive forms from which the species occurring in predatory animals may have been evolved through host—succession—extension, or whether they have been secondarily derived through loss of a predatory definitive host through host—succession—reduction.

show abstract

mentioning

confidence: 99%