Etude expérimentale du cycle biologique d'Echinostoma parvocirrusn. sp. (Trematoda : Echinostomatidae), parasite larvaire deBiomphalaria glabrataen Guadeloupe

Abstract

Experimental study of the life history of Echinostoma parvocirrus n. sp. (Trematoda: Echinostomatidae), a larval parasite of Biomphalaria glabrata in Guadeloupe.SUMMARY. The larval stages and adult of a new species of Echinostome with 37 collar spines originating from Guadeloupe are described. The first intermediate host is the snail vector of Schistosoma mansoni in this island, Biomphalaria glabrata. Metacercariae encyst in the pericardial sac of the same snail and the physid snail Physa marmorata, as in kidneys of tadpoles of Bufo marinus. Adult develops experimentally in ducklings of Cairina moschata and in canaris but not in ducklings of Anas platyrhyncos, pigeons, chicks, albino mice, Ratlus rattus, or wild and albino R. norvegicus. The natural final host is unknown.

Taxonomy of Echinostoma revolutum and 37-Collar-Spined Echinostoma spp.: A Historical Review

“…In the meantime, Echinostoma rodriguesi Hsu et al, 1968 was reported as a new 37-collar-spined group from Brazil [37], and Echinostoma parvocirrus Nassi and Dupouy [38], 1988 from Guadeloupe, French West Indies. Echinostoma friedi Toledo et al [39], 2000 was described as a new species in Spain.…”

“…In addition, Detwiler et al [31] detected the presence of E. robustum from Indiana and Minnesota, USA, and also from Brazil. From Guadeloupe (French West Indies), E. parvocirrus was reported [38]. Thus, in North and Central America, at least 4 species can be listed as the 'revolutum' group; E. revolutum, E. parvocirrus, E. robustum, and E. trivolvis [38,42] (Table 3).…”

“…However, the specimen from Pakistan showed testes with no distinct median constriction, and thus the specific diagnosis needs reconfirmation. Nassi & Dupouy, 1988 This species was described as a new species from the naturally infected B. glabrata snails in Guadeloupe, French West Indies [38]. This snail host served as both the 1st and 2nd intermediate host (metacercariae also in P. marmorata snails and tadpoles of Bufo marinus), and birds (ducklings of Cairina moschata and canaries) served as the experimental definitive host [38].…”

“…Nassi & Dupouy, 1988 This species was described as a new species from the naturally infected B. glabrata snails in Guadeloupe, French West Indies [38]. This snail host served as both the 1st and 2nd intermediate host (metacercariae also in P. marmorata snails and tadpoles of Bufo marinus), and birds (ducklings of Cairina moschata and canaries) served as the experimental definitive host [38]. The adults morphologically resembled E. trivolvis (under the name E. multispinosum reported from birds in Cuba), E. revolutum (under the name E. mendax reported from birds in Brazil), and E. barbosai (from birds in Brazil) but differed in body length, size of oral and ventral suckers, pharynx, and other organs [38].…”

Echinostoma revolutum: Metacercariae inFilopaludinaSnails from Nam Dinh Province, Vietnam, and Adults from Experimental Hamsters

“…Within this group, more than 30 species have been described. However, at present, only 12 species, E. revolutum (Froelich, 1802) [1,6,9], E. caproni Richard, 1964 [9-11], E. cinetorchis Ando and Ozaki, 1924 [1,12]; E. deserticum Kechemir et al, 2002 [9,13], E. echinatum (Zeder, 1803) [14-16], E. friedi Toledo et al, 2000 [9,17], E. jurini (Skvortsov, 1924) [9,18], E. luisreyi Maldonado et al, 2003 [9,10], E. miyagawai Ishii, 1932 [9,14], E. paraensei Lie and Basch, 1967 [9,10,19], E. parvocirrus Nassy and Dupouy, 1988 [9,20], and E. trivolvis (Cort, 1914) [9,21], can be considered to be valid [1,2,8,9]. Their differential features, in terms of the life cycle, morphology, and geographical distribution, are reviewed in Table 1.…”