First record of family Prosthiostomidae and Prosthiostomum trilineatum (Platyhelminthes: Polycladida) from the west coast of India

Pitale, Reshma; Bhave, Vishal; Apte, Deepak

doi:10.1017/s1755267214000128

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…However, a similar colour variation has been reported for Prosthiostomum trilineatum Yeri & Kaburaki, 1920by Newman & Cannon (2003 and Pitale et al (2014).…”

Section: Pseudobiceros Uniarborensissupporting

confidence: 82%

New records of Cotylea (Polycladida, Platyhelminthes) from Lizard Island, Great Barrier Reef, Australia, with remarks on the distribution of the Pseudoceros Lang, 1884 and Pseudobiceros Faubel, 1984 species of the Indo-Pacific Marine Region

Marquina

Aguado

Noreña

2015

Zootaxa

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In the present work eleven polyclad species of Lizard Island are studied. Seven of them are new records for this locality of the Australian coral reef and one is new to science, Lurymare clavocapitata n. sp. (Family Prosthiostomidae). The remaining recorded species belong to the genera Pseudoceros (P. bimarginatus, P. jebborum, P. stimpsoni, P. zebra, P. paralaticlavus and P. prudhoei) and Pseudobiceros (Pb. hancockanus, Pb. hymanae, Pb. flowersi and Pb. uniarborensis). Regardless of the different distribution patterns, all pseudocerotid species show brilliant colours, but similar internal morphology. Furthermore, differences in the form and size of the stylet are characteristic, because it is a sclerotic structure that is not affected during fixation. In Pseudoceros, the distance between the sucker and the female pore also differs among species. These features do not vary enough to be considered as diagnostic, but they provide information that can help to disentangle similarly coloured species complexes. A key of the genera Pseudoceros and Pseudobiceros of the Indo-Pacific region is provided, in order to facilitate the identification of species from this area.

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“…However, a similar colour variation has been reported for Prosthiostomum trilineatum Yeri & Kaburaki, 1920by Newman & Cannon (2003 and Pitale et al (2014).…”

Section: Pseudobiceros Uniarborensissupporting

confidence: 82%

New records of Cotylea (Polycladida, Platyhelminthes) from Lizard Island, Great Barrier Reef, Australia, with remarks on the distribution of the Pseudoceros Lang, 1884 and Pseudobiceros Faubel, 1984 species of the Indo-Pacific Marine Region

Marquina

Aguado

Noreña

2015

Zootaxa

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“…Two flatworm specimens were collected from the coastal area of Hayama, Kanagawa, Japan under stones in the intertidal zone, and a rocky bottom at a depth of approximately 10 m. These were identified as Pr. trilineatum based on the description of external morphology [ 28 , 29 ]; broadly elongated body, rounded anteriorly and tapered posteriorly; longitudinal orange-yellow stripe bordered by black band running medially ( Figure 1 ).…”

Section: Resultsmentioning

confidence: 99%

“…The distribution of Pr. trilineatum is quite wide, extending from the North Equatorial Current to the Kuroshio Current including Japan, Micronesia, Guam, and Papua New Guinea, and even to Singapore and India [ 28 , 29 , 42 , 43 ], suggesting that the sampling site for this study may be the northern limit in the Kuroshio basin. If so, Pr.…”

Section: Resultsmentioning

confidence: 99%

First Detection of Tetrodotoxins in the Cotylean Flatworm Prosthiostomum trilineatum

et al. 2021

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Several polyclad flatworm species are known to contain high levels of tetrodotoxin (TTX), but currently TTX-bearing flatworms seem to be restricted to specific Planocera lineages belonging to the suborder Acotylea. During our ongoing study of flatworm toxins, high concentrations of TTXs were detected for the first time in the flatworm Prosthiostomum trilineatum, suborder Cotylea, from the coastal area of Hayama, Kanagawa, Japan. Toxin levels were investigated by high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS), revealing that this species contains comparable concentrations of toxins as seen in planocerid flatworms such as Planocera multitentaculata. This finding indicated that there may be other species with significant levels of TTXs. The distribution of TTXs among other flatworm species is thus of great interest.

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“…However, many works were published on polyclads during this period from nearby geographic areas in Arabian Sea such as Sri Lanka (Kelaart, 1858; Laidlaw, 1904), Maldives (Laidlaw, 1902, 1903), Djibouti (Mexiner, 1907 a , 1907 b ) and the Red Sea (Meyer, 1922; Prudhoe, 1952). Since 2011, efforts from a handful of researchers raised the number of species from nine to 68 from Indian waters (Apte & Pitale, 2011; Sreeraj & Raghunathan, 2011, 2013, 2015; Dixit & Raghunathan, 2013; Pitale et al ., 2014; Sreeraj et al ., 2015; Dixit et al ., 2015, 2017 a , 2017 b , 2018 a , 2018 b , 2018 c , 2019, 2021; Pitale & Apte, 2017, 2019; Dixit, 2018; present study). All species of polyclads reported from Indian waters are compiled in a checklist (Table 1) based on published reports.…”

Section: Discussionmentioning

confidence: 99%

Two new Pseudoceros (Platyhelminthes: Polycladida: Pseudocerotidae) from Agatti Island, India and a species checklist from Indian waters

2021

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The Lakshadweep archipelago constitutes a major coral region of India but still lacks sufficient biodiversity data owing to its remoteness and a low number of faunal studies in the past. The present paper describes two new Pseudoceros species collected from Agatti Island, Lakshadweep, India. Pseudoceros bipurpurea sp. nov. and Pseudoceros galaxea sp. nov. are described based on external and internal characters, supported with histological studies and photographs. Pseudoceros bipurpurea sp. nov. is characterized by a cream background colour and an orange median line surrounded by dense patches of purple spots, which tend to disperse and broaden towards the posterior end. Pseudoceros galaxea sp. nov. displays a brown background colour with numerous white to cream dots covering almost the entire dorsal surface and a thin black margin. This study adds two new species to the polyclad fauna in Indian waters, raising the count to 68 species. An updated checklist of polyclads from Indian coast is also provided.

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First record of family Prosthiostomidae and Prosthiostomum trilineatum (Platyhelminthes: Polycladida) from the west coast of India

Cited by 5 publications

References 4 publications

New records of Cotylea (Polycladida, Platyhelminthes) from Lizard Island, Great Barrier Reef, Australia, with remarks on the distribution of the Pseudoceros Lang, 1884 and Pseudobiceros Faubel, 1984 species of the Indo-Pacific Marine Region

New records of Cotylea (Polycladida, Platyhelminthes) from Lizard Island, Great Barrier Reef, Australia, with remarks on the distribution of the Pseudoceros Lang, 1884 and Pseudobiceros Faubel, 1984 species of the Indo-Pacific Marine Region

First Detection of Tetrodotoxins in the Cotylean Flatworm Prosthiostomum trilineatum

Two new Pseudoceros (Platyhelminthes: Polycladida: Pseudocerotidae) from Agatti Island, India and a species checklist from Indian waters

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