Notocotylus biomphalariae n. sp. (Digenea: Notocotylidae)from Biomphalaria peregrina (Gastropoda: Pulmonata) in Patagonia, Argentina

Abstract

A new species of Notocotylus was found parasiting a freshwater pulmonate snail, Biomphalaria peregrina. Naturally infected snails were collected from two temporary ponds in the Nahuel Huapí National Park in Patagonia. The characteristics of the larval stages are presented. Experimental adults were recovered from the intestinal caeca of ducks and chicks. Adults of Notocotylus biomphalariae n. sp. exhibit an aspinose tegument, two lateral rows of 11 ventral glands and a median row of four, a uterus with 12-16 coils of which 2-4 are previtelline, a metraterm equivalent in size to 65-68% of the cirrus-sac length, a previtelline field which extends to the middle of the body, a lobed testis and a genital pore closely posterior to the intestinal bifurcation. The rediae have one to three cercariae. The cercariae, when shed, are trioculate and have a long tail; they encyst in the environment and become infective 12 days after encystment.

A morphological, molecular and life cycle study of the capybara parasite Hippocrepis hippocrepis (Trematoda: Notocotylidae)

“…Considering other cercariae reported in planorbids from South America, the cercariae of Notocotylus biomphalariae Flores and Brugni, 2005 found in B . peregrina and described from experimentally obtained parasites in Argentina [49] are much larger than the cercariae of H . hippocrepis here reported.…”

Larvas de trematódeos associadas a moluscos de água doce em municípios da Região Metropolitana de São Paulo, Estado de São Paulo, Brasil

“…22 pela ausência de acetábulo e pela presença de três ocelos pigmentados, um par de órgãos adesivos na terminação posterior do corpo, vesícula excretora posterior e inúmeras glândulas cistogênicas espalhadas pelo corpo. Estas cercárias são produzidas por trematódeos Notocotylidae e Pronocephalidae, cujos hospedeiros definitivos são vertebrados, principalmente aves e mamíferos 22,32 . Assemelha-se morfologicamente com Notocotylus biomphalariae descrita por Flores e Brugni 32 como parasito de B. peregrina da Patagonia, Argentina.…”

Identification of a new species of digenean Notocotylus malhamensis n. sp. (Digenea: Notocotylidae) from the bank vole (Myodes glareolus) and the field vole (Microtus agrestis)

“…From these 49 species, both Notocotylus gippyensis and N. tadornae (see Bisset, 1977), which possess a single row of ventral glands, have been re-located into Uniserialis Beverley-Burton, 1958 (Barton and Blair, 2005). Two further species have been described since 2005 N. biomphalaria (Flores and Brugni, 2005) and N. loeiensis (Chaisiri et al 2011), and 15 names not mentioned, including N. linearis (Rudolphi, 1819), N. triserialis Diesing, 1839, N. urbanensis Cort, 1914 chionis (Baylis, 1928a), N. intestinalis (Tubangui, 1932), N. babai (Bhalerao, 1935), N. lucknowensis (Lal, 1935a), N. anatis and N. orientalis (Ku, 1937), N. dafilae and N. porzanae (Harwood, 1939), N. stagnicolae (Herber, 1942), N. solitaria (Singh, 1954), N. wetlugensis (Shaldybin, 1965), and N. lianhuensis (Qiongzhang, 1988), include species that are more controversially valid. Cribb (1991) regarded N. anatis, N. babai, N. lucknowensis and N. solitaria as synonyms of N. imbricatus Looss, 1893, and while N. triserialis and N. attenuatus may be synonyms, the relative precedence and validity of the two forms remains disputed (Dubois, 1951;Beverley-Burton, 1961, 1972Pike, 1969).…”