Rolling into the deep of the land planarian genus Choeradoplana (Tricladida, Continenticola, Geoplanidae) taxonomy

Carbayo, Fernando; Silva, Marcos Santos; Riutort, Marta; Álvarez‐Presas, Marta

doi:10.1007/s13127-017-0352-4

Cited by 12 publications

(11 citation statements)

References 49 publications

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“…Regarding external features, both new species resemble the type-species, C.iheringi , as well as C.banga Carbayo & Froehlich, 2012, C.bocaina Carbayo & Froehlich, 2012, C.benyai Lemos & Leal-Zanchet, 2014, C.agua Carbayo et al 2017, C.pucupucu Carbayo et al 2017 and C.abaiba Carbayo et al 2017. All these species show a brownish dorsal pigmentation usually consisting of irregular, small dark-brown flecks (Carbayo and Froehlich 2012, Lemos et al 2014, Carbayo et al 2017).…”

Section: Discussionmentioning

confidence: 78%

“…With respect to the anatomy of the copulatory organs, by presenting a long, permanent penis papilla, the new species are easily differentiated from the species with an eversible penis papilla, namely C.abaiba , C.agua , C.albonigra (Riester 1938), C.banga Carbayo & Froehlich, 2012, C.bocaina , C.gladismariae Carbayo & Froehlich, 2012, C.iheringi , C.langi (Graff 1894), and C.pucupucu (Graff 1899, Riester 1938, Carbayo and Froehlich 2012, Carbayo et al 2017). The presence of a long penis papilla horizontally disposed and occupying the whole length of the atrium distinguishes both new species from C.bilix Marcus, 1951, C.catua Froehlich, 1955, C.marthae Froehlich, 1955, and C.crassiphalla Negrete & Brusa, 2012.…”

Section: Discussionmentioning

confidence: 92%

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Why be original? Two new species of Choeradoplana resembling the type species of the genus in their external aspects (Platyhelminthes, Continenticola)

Turralde¹,

Leal-Zanchet²

2019

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The genus Choeradoplana Graff, 1896 encompasses 16 species, most of them found in Brazil. Herein two new species of this genus are described from remnants of Araucaria moist forests, located in the states of Paraná and Santa Catarina, south Brazil. Both species resemble the type-species of the genus, C.iheringi, showing brownish dorsal surface covered by dark-brown flecks. However, regarding their anatomy, the new species differ from C.iheringi and other congeners by a long and horizontal disposed permanent papilla. In such aspects, both species resemble C.benyai, but differ from this species, as well as from each other, in details of the prostatic vesicle, ejaculatory duct, and penis papilla.

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 92%

Why be original? Two new species of Choeradoplana resembling the type species of the genus in their external aspects (Platyhelminthes, Continenticola)

Turralde¹,

Leal-Zanchet²

2019

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“…Anatomy and histology of the copulatory apparatus are central for the identification and systematics of these organisms (e.g., Froehlich, 1955 ; Negrete & Brusa, 2016 ). Nonetheless, when in several studies traditional, morphology-based taxonomic approaches were complemented with molecular methodologies, some nominal species were found to be polyphyletic ( Sluys et al, 2016 ; Carbayo et al, 2018 ; Almeida, Marques & Carbayo, 2019 ). Detailed reanalyses of the morphological evidence in those cases revealed that morphological variation assumed to represent within-species polymorphisms, actually signaled the existence of distinct species.…”

Section: Introductionmentioning

confidence: 99%

Five new pseudocryptic land planarian species of Cratera (Platyhelminthes: Tricladida) unveiled through integrative taxonomy

Araujo

Carbayo

Riutort

et al. 2020

PeerJ

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Background Cratera is a genus of land planarians endemic to the Brazilian Atlantic forest. The species of this genus are distinguished from each other by a series of external and internal characters, nonetheless they represent a challenging taxonomic issue due to the extreme alikeness of the species analysed in the present work. To resolve these difficulties, we have performed morphological analyses and used three nuclear markers (ribosomal 18S and 28S, Elongation Factor, a new anonymous marker named Tnuc813) and two mitochondrial fragments (Cytochrome c oxidase subunit I gene, and a fragment encompasing NADH deshydrogenase subunit 4 gene, trnF and the beginning of the Cytochrome c oxidase I gene) in an integrative taxonomic study. Methods To unveil cryptic species, we applied a molecular species delimitation approach based on molecular discovery methods, followed by a validation method. The putative species so delimited were then validated on the basis of diagnostic morphological features. Results We discovered and described four new species, namely Cratera assu, C. tui, C. boja, and C. imbiri. A fifth new species, C. paraitinga was not highly supported by molecular evidence, but was described because its morphological attributes are unique. Our study documents for the genus Cratera the presence of a number of highly similar species, a situation that is present also in other genera of land planarians. The high number of poorly differentiated and presumably recent speciation events might be explained by the recent geological history of the area.

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“…Anatomy and histology of the copulatory apparatus are central for the identification and systematics of these organisms (e.g., E. M. Froehlich, 1955;Negrete & Brusa, 2016). Nonetheless, when in several studies traditional, morphology-based taxonomic approaches were complemented with molecular methodologies, some nominal species were found to be polyphyletic (Sluys et al, 2016;Carbayo et al, 2018;Almeida, Marques & Carbayo, 2019). Detailed reanalyses of the morphological evidence in those cases revealed that PeerJ reviewing PDF | (2020:04:48478:1:1:NEW 8 Jul 2020)…”

Section: Introductionmentioning

confidence: 99%

Peer Review #1 of "Five new pseudocryptic land planarian species of Cratera (Platyhelminthes: Tricladida) unveiled through integrative taxonomy (v0.2)"

Sluys¹

2020

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Background. Cratera is a genus of land planarians endemic to the Brazilian Atlantic forest. The species of this genus are distinguished from each other by a series of external and internal characters, nonetheless they represent a challenging taxonomic issue due to the extreme alikeness of the species analysed in the present work. To resolve these difficulties, we have performed morphological analyses and used three nuclear markers (ribosomal 18S and 28S, Elongation Factor, a new anonymous marker named Tnuc813) and two mitochondrial fragments (Cytochrome oxidase I and a fragment encompassing NADH4 gene, trnF and the beginning of the Cox1 gene) in an integrative taxonomic study. Methods. To unveil cryptic species, we applied a molecular species delimitation approach based on molecular discovery methods, followed by a validation method. The putative species so delimited were then validated on the basis of diagnostic morphological features. Results. We discovered and described four new species, namely Cratera assu, C. tui, C. boja, and C. imbiri. A fifth new species, C. paraitinga was not highly supported by molecular evidence, but was described because its morphological attributes are unique. Our study documents for the genus Cratera the presence of a number of highly similar species, a situation that is present also in other genera of land planarians. The high number of poorly differentiated and presumably recent speciation events might be explained by the recent geological history of the area.

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Rolling into the deep of the land planarian genus Choeradoplana (Tricladida, Continenticola, Geoplanidae) taxonomy

Cited by 12 publications

References 49 publications

Why be original? Two new species of Choeradoplana resembling the type species of the genus in their external aspects (Platyhelminthes, Continenticola)

Why be original? Two new species of Choeradoplana resembling the type species of the genus in their external aspects (Platyhelminthes, Continenticola)

Five new pseudocryptic land planarian species of Cratera (Platyhelminthes: Tricladida) unveiled through integrative taxonomy

Peer Review #1 of "Five new pseudocryptic land planarian species of Cratera (Platyhelminthes: Tricladida) unveiled through integrative taxonomy (v0.2)"

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