BeitrÄge zur Systematik der Pentastomiden

Infective pentastomid larvae from Pygocentrus nattereri Kner (Pisces, Characidae) from the Miranda River, Pantanal, Mato Grosso do Sul State, Brazil, with notes on their taxonomy and epidemiology

“…Remarks. the present specimens display numerous characteristics typical of the genus Leiperia including (sambon 1922, Heymons and Vitzthum 1936, Heymons 1940a, b, riley and Huchzermeyer 1996, Junker et al 2000. Much confusion does, however, surround the status of this genus in south America.…”

“…When looking at a combination of the characters body length, number of annuli and disposition of chloride cell pores, the following south American infective larvae described in the literature resemble the present specimens of (iv) an infective larva from Gobioides peruanus (steindachner) (gobiidae), Ecuador, initially described as 'Leiperia neotropica', but later identified as belonging to the 'large species A' by Heymons and Vitzthum (1936). Heymons and Vitzthum (1936) concluded that the above specimens (i-iv) all belonged to Pentastomum gracile sensu leuckart, 1860, who had assigned this name to specimens from S. brasiliensis [syns.…”

“…Diesing (1836Diesing ( , 1850, described and listed pentastomid specimens that had been collected from a large number of mainly amphibian and fish hosts by J. Natterer in Brazil during 1824-1827 and named them 'Pentastoma gracile'. since then, several authors have partially re-examined and redescribed material originating from this collection or have described specimens from yet other hosts under either this binomial or, later, as 'Leiperia gracilis' (see leuckart 1860, Heymons and Vitzthum 1936, Heymons 1940a; for a detailed review of the literature see riley and Huchzermeyer 1996). Based on the various descriptions and host data, the latter authors concluded that Leiperia is in all likelihood represented by two species in south America, presently known as nymphs only, and that L. gracilis should be considered a species inquirenda.…”

“…Heymons and Vitzthum (1936) concluded that the above specimens (i-iv) all belonged to Pentastomum gracile sensu leuckart, 1860, who had assigned this name to specimens from S. brasiliensis [syns. S. brevidens and Hydrocyon brevidens (cuvier)], exclusively and which were characterised by rows of pores four to five deep, had ± 90 annuli and were 11 mm long (sambon 1922, Heymons andVitzthum 1936).…”

Human Pentastomiasis Caused by Armillifer moniliformis in Malaysian Borneo

“…1 Armillifer nymphs have a body length of 9-23 mm, 2 and A. moniliformis has been reported to have a minimal size of 11-12 mm in Malaysia. 7,19 The species has about 30 rings, 7 but 11 In contrast, the geographically nearest neighbor, A. agkistrodontis , has only 7-9 spiral rings, 4 whereas A. armillatus has 18-22 rings. 6,7 To assess the full extent of human visceral pentastomiasis in Malaysia, serological prevalence studies in risk populations should be performed; these studies were used in a recent investigation from The Gambia 1 and an earlier investigation from the Ivory Coast.…”