Notes on tardigrades of the Seychelles with the description of three new species

Pilato, Giovanni; Binda, Maria Grazia; Lisi, Oscar

doi:10.1080/11250000409356569

Cited by 36 publications

(43 citation statements)

References 7 publications

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“…nov. is similar to other species of the genus Milnesium with the claw configuration Pilato et al 2002).…”

Section: Differential Diagnosismentioning

confidence: 50%

“…Characteristics and measurements of the species used in the differential diagnosis are given according to the original descriptions (Ramazzotti 1962;Binda and Pilato 1990;Maucci 1991;Pilato et al 2002;Kaczmarek et al 2004Kaczmarek et al , 2012aTumanov 2006;Kaczmarek and Michalczyk 2007;Meyer andHinton 2010, 2012;Michalczyk et al 2012a, b;Bartels et al 2014;Ciobanu et al 2014b) or are based on direct examination of fixed specimens (holotype and paratypes of M. beasleyi, M. berladnicorum, M. bohleberi, M. granulatum, M. katarzynae, M. krzysztofi and specimens of M. eurystomum from Spitsbergen). Tardigrade taxonomy follows Marley et al (2011).…”

Section: Methodsmentioning

confidence: 99%

“…M. longiungue by having sculptured dorsal cuticle, presence of accessory points on the main branches of claws, slightly higher pt of standard width of buccal tube ([58.1-65.6] in M. beatae sp. nov. vs. [33.8-59.1] in M. longiungue) and smaller claws I to IV (see Table 2 and Table 2 and Table two in Pilato et al (2002) for the exact differences in dimensions of claws Table 2 and the description of M. zsalakoae in Meyer and Hinton (2010) for the exact differences in dimensions of claws).…”

Section: Differential Diagnosismentioning

confidence: 99%

“…To date, ca. 210 taxa (including seven Milnesium species) have been reported from this region (mostly from Argentina, Chile and Brazil) (McInnes 1994;Pilato 1994a,b, 1999a,b;Pilato and Binda 1994, 1996, 1998Maucci 1996;Claps and Rossi 1997;Claxton 1998;Pilato and Patanè 1998;Dastych et al 1998;Pilato et al , 2000Pilato et al , 2002Pilato et al , 2003Pilato et al , 2004Dastych 1999a,b, 2000, Pilato 2000, 2007Jerez Jaimes and Narváez Parra 2001;Nickel et al 2001;Peluffo et al 2002Peluffo et al , 2007Michalczyk and Kaczmarek 2003, 2005Marley 2006; Moly de Peluffo et al 2006;Degma et al 2008;Kaczmarek and Michalczyk 2009;Rossi et al 2009;Montoya et al 2010;Lisi 2011;Guidetti et al 2013;Meyer 2013;Kaczmarek et al 2014a, b;Lisi et al 2014;Melo et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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The genus Milnesium Doyère, 1840 (Tardigrada) in South America with descriptions of two new species from Argentina and discussion of the feeding behaviour in the family Milnesiidae

2015

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Background: The diversity and distribution of the tardigrades in South America are rather poor and selective, as is information about their feeding behaviour and diet. To date, only ca. 210 tardigrade taxa have been reported from the region of South America. In the present paper, we provide an update of the distribution of the genus Milnesium in South America and discuss some aspects of the feeding behaviour in the family Milnesiidae. Results: In seven moss samples collected in the Argentinean province of Río Negro, 31 specimens, 4 exuviae and 32 eggs belonging to the genus Milnesium were found. Among them, four species were identified: Milnesium argentinum sp. nov., Milnesium beatae sp. nov., Milnesium brachyungue and Milnesium granulatum. By its dorsal sculpture, M. argentinum sp. nov. is most similar to M. beatae sp. nov., Milnesium beasleyi and Milnesium berladnicorum, but it differs from M. beasleyi and M. berladnicorum mainly by having a different claw configuration and from M. beatae and M. beasleyi by having stylet supports inserted in a more caudal position and by some other morphometric characters. In the width of its buccal tube and the claw configuration [3-3]-[3-3], M. beatae sp. nov. is most similar to Milnesium bohleberi, M. brachyungue and Milnesium eurystomum, but it differs from them mainly by having a sculptured dorsal cuticle and by some other morphometric characters. Conclusions: The study discusses distribution and taxonomic problems of the Milnesium species known from South America. As of now, nine Milnesium taxa are known from this region (including two new species reported in this paper). Additionally, the study broadens our knowledge of tardigrades' feeding behaviour, provides some details about their diet and suggests that the type of prey chosen by some species belonging to the family Milnesiidae may be associated with the width of their buccal tube.

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“…nov. is similar to other species of the genus Milnesium with the claw configuration Pilato et al 2002).…”

Section: Differential Diagnosismentioning

confidence: 50%