A new species of<i>Temnocephala</i>(Platyhelminthes, Temnocephalida) and a description of<i>T. axenos</i>from Uruguay

Volonterio, Odile

doi:10.1080/00222930701360208

Cited by 17 publications

(31 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dioni (1967c) studied specimens of T. axenos ectosymbiont on species of Aegla and Parastacus Huxley, 1879 from Uruguay and Brazil, finding a great cirrus' size variability (125-150 µm), although, due to the lack of data on female reproductive system, is impossible to compare with the new species described in the present work. Nonetheless, both cirri measurements presented by Dioni (1967c) and Volonterio (2007), on their description of Uruguayan specimens of T. axenos, differ from that of T. grisella sp. nov. (Table 1).…”

Section: Discussionmentioning

confidence: 93%

“…Temnocephala chilensis, T. axenos, T. talicei and T. mertoni present cirrus measuring, on average, between 123-149 µm long (Damborenea & Cannon 2001, Volonterio 2007, while T. cyanoglandula has the largest cirrus among anomuran crabs temnocephalans, having an average length of 256 µm (Amato et al 2003). Among these species, T. grisella sp.…”

Section: Discussionmentioning

confidence: 99%

“…The author re-described T. axenos, solving some of these issues. The incomplete description of T. cyanoglandula, with only data of the male reproductive system, has led Volonterio (2007) to suggest a synonymy for this species with T. axenos or T. bresslaui. However, a recent study of the female reproductive system (Seixas et al 2015a) has confirmed T. cyanoglandula as a valid species.…”

Section: Introductionmentioning

confidence: 99%

“…The superficial description of T. axenos (Monticelli 1898) lead to the consideration of this species as a senior synonym of Temnocephala brasiliensis Merton, 1922by Baer (1931 and Temnocephala bresslaui Pérez-González, 1949 by Dioni (1967c). Volonterio (2007) stated that T. bresslaui was erroneously synonymized by Dioni (1967c) and it is, probably, still a valid species. The author re-described T. axenos, solving some of these issues.…”

Section: Introductionmentioning

confidence: 99%

“…While describing T. mertoni, an epibiont species on anomuran crabs, Volonterio (2007) pointed out the difficulties of distinguishing temnocephalans species on crustaceans given the similarities in the males' reproductive system. Among other features, the author highlighted the importance of describing in detail the female reproductive system of ectosymbionts hosted by crustaceans.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

New species of Temnocephala (Platyhelminthes, Temnocephalida) ectosymbiont on vulnerable species of aeglids (Crustacea, Anomura) from the Neotropical Region

2018

View full text Add to dashboard Cite

SEIXAS, S.A., DAMETTO, N., PÉRICO, E. New species of Temnocephala (Platyhelminthes, Temnocephalida) ectosymbiont on vulnerable species of aeglids (Crustacea, Anomura) from the Neotropical Region. Biota Neotropica. 18(4): e201704725. http://dx.doi.org/10.1590/1676-0611- BN-2017-0475 Abstract: A new species of the genus Temnocephala Blanchard, 1849 from southern Brazil was found on two species of anomuran crustaceans, Aegla spinipalma Bond-Buckup & Buckup, 1994 and Aegla grisella Bond-Buckup & Buckup, 1994, the latter classified as a vulnerable species by the "Lista de Referência da Fauna Ameaçada de Extinção no Rio Grande do Sul. Decreto no 41.672, de 11 junho de 2002". The crustaceans were collected from a tributary creek of the Forqueta river, Perau de Janeiro, Arvorezinha and a tributary creek of the Fão river, Pouso Novo, Rio Grande do Sul, Brazil; both localities belong to the Sub-Basin of Forqueta River. The new species differs from seven other temnocephalans epibionts on Aegla Leach, 1820, by having the following characters: 1. a long and slightly curved cirrus, 2. two vaginal sphincters, one proximal, big and asymmetric, and one distal, smaller and symmetric, and; 3. longer than wide, elongated epidermal 'excretory' syncytial plates (EPs), with a almost horizontally central excretory pore, displaced to the anterior portion of the plate. The new species' EP is the largest in total length among epibionts temnocephalans in crustaceans already registered. Regarding the similarities with the male reproductive system of Temnocephala axenos Monticelli, 1898, the new species has important differences in the female reproductive system. It has a larger proximal vaginal sphincter, located in the middle of the vagina, while the smaller distal one is at the extreme end of the organ. Besides that, the vaginal portion between the proximal and distal sphincters is conspicuous, with a strong muscular wall. This is the first record of a species of Temnocephala in the Taquari Valley, as well in the 'Perau de Janeiro', which is an area with a rich endemic fauna. Keywords: crustacean, ectosymbiont, South America, symbiosis, Taxonomy. Nova espécie de Temnocephala (Platyhelminthes, Temnocephalida) ectosimbionte sobre espécies vulneráveis de eglídeos (Crustacea, Anomura) da Região NeotropicalResumo: Uma nova espécie do gênero Temnocephala Blanchard, 1849 da região sul do Brasil foi encontrada sobre duas espécies de crustáceos anomuros, Aegla spinipalma Bond-Buckup & Buckup, 1994 e Aegla grisella Bond-Buckup & Buckup, 1994, a última classificada como uma espécie vulnerável pela Lista de Referência da Fauna Ameaçada de Extinção no Rio Grande do Sul. Decreto no 41.672, de 11 junho de 2002. Os crustáceos foram coletados em um arroio tributário do Rio Forqueta, Perau de Janeiro, Arvorezinha e em um arroio tributário do Rio Fão, Pouso Novo, Rio Grande do Sul, Brazil; ambas localidades pertencem a Sub-Bacia do Rio Forqueta. A nova espécie se diferencia dos outros sete temnocefalídeos epibiontes sobre Aegla Leach, 1820 pelos caract...

show abstract

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations