On the Indian species of Eurycarcinus A. Milne-Edwards, 1867, Heteropanope Stimpson, 1858, and Pilumnopeus A. Milne-Edwards, 1867 (Decapoda: Brachyura: Pilumnidae)

Five species of pilumnid crabs assigned to Eurycarcinus A. Milne-Edwards, 1867, Heteropanope Stimpson, 1858, and Pilumnopeus A. Milne-Edwards, 1867, have been reported from India: E. orientalis A. Milne-Edwards, 1867, E. bengalensis Deb, 1999, H. glabra Stimpson, 1858, H. neolaevis Deb, 1995, and P. convexus (Maccagno, 1936). The identity of E. bengalensis is confused and the species had been provisionally transferred to Heteropanope. Examination of the types however, confirms the affinities of the species with Eurycarcinus and consequently extends the range of the genus to the eastern Indian Ocean. A re-examination of the types of H. neolaevis show that it is a junior subjective synonym of Aniptumnus quadridentus (De Man, 1895), and is the first record of the genus from India. Eurycarcinus integrifrons De Man, 1879, is also formally recorded for the first time from India.

Keywords
Aniptumnus ; Eurycarcinus ; Gujarat; Heteropanope ; India; new records; Pilumnopeus ; synonymy; taxonomy; West Bengal

Authorship

Jigneshkumar Trivedi

Hemchandracharya North Gujarat University, Department of Life Sciences. Patan, Gujarat, India.Hemchandracharya North Gujarat UniversityIndiaPatan, Gujarat, IndiaHemchandracharya North Gujarat University, Department of Life Sciences. Patan, Gujarat, India.

http://orcid.org/0000-0002-1308-7104

Santanu Mitra

Zoological Survey of India. F.P.S. Building, 27 J. L. Nehru Road, Kolkata-700016, WestBengal, India.Zoological Survey of IndiaIndiaKolkata, WestBengal, IndiaZoological Survey of India. F.P.S. Building, 27 J. L. Nehru Road, Kolkata-700016, WestBengal, India.

http://orcid.org/0000-0002-3247-9293

Pooja Patel

http://orcid.org/0000-0002-9802-5200

Niketa Maheta

The Maharaja Sayajirao University of Baroda, Faculty of Science, Department of Zoology, Marine Biodiversity and Ecology Laboratory. Vadodara, Gujarat, India.The Maharaja Sayajirao University of BarodaIndiaVadodara, Gujarat, IndiaThe Maharaja Sayajirao University of Baroda, Faculty of Science, Department of Zoology, Marine Biodiversity and Ecology Laboratory. Vadodara, Gujarat, India.

http://orcid.org/0000-0003-1163-6015

Krupal Patel

http://orcid.org/0000-0003-0810-4210

Peter K. L. Ng

National University of Singapore, Faculty of Science, Lee Kong Chian Natural History Museum. 2 Conservatory Drive, 117377 Singapore.National University of SingaporeSingaporeSingaporeNational University of Singapore, Faculty of Science, Lee Kong Chian Natural History Museum. 2 Conservatory Drive, 117377 Singapore.

http://orcid.org/0000-0001-5946-0608

CORRESPONDING AUTHOR
Jigneshkumar N. Trivedi jntrivedi26@yahoo.co.in

JT E-mail: jntrivedi26@yahoo.co.in

PP E-mail: poojapatel1737@gmail.com

SM Email: santanuzsi@gmail.com

NM E-mail: nikismit31@gmail.com

KP E-mail: krupalpatelkp8460@gmail.com

PKLN E-mail: peterng@nus.edu.sg

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (10)

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Figure 1.
Eurycarcinus orientalis A. Milne-Edwards, 1867Milne-Edwards, A. 1867. Descriptions de quelques espéces nouvelles de Crustacés Brachyures. Annales de la Société entomologique de France, 4e série, 7: 263-288., male (CW 41.5 mm, CL 26.9 mm) (LFSc.ZRC-64), Kamboi, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

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Figure 2.
Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., male (CW 28.2 mm, CL 19.9 mm) (LFSc.ZRC-63), Lakhpat, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

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Figure 3.
Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998)., holotype male (CW 25.1 mm, CL 16.9 mm) (ZSI-C3349/2), Chamta Block, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

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Figure 4.
Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., paratype ovigerous female of Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998). (CW 21.3 mm; CL 15.3 mm) (ZSI-C3349/2), Chamta Block, India. A, habitus, dorsal view; B, frontal view; C, chelae, outer view; D, anterior thoracic sternum (sternites 1-4) and pleon.

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Figure 5.
Pilumnopeus convexus (Maccagno, 1936Maccagno, T. 1936. Crostacei di Assab: Decapodi Stomatopodi Anfipodi. Spedizione del Barone Raimondo Franchetti in Dancalia (1928-29). Annali del Museo Civico di Storia Naturale di Genova, 59: 171-186.), male (CW 15.3 mm, CL 11.3 mm) (LFSc.ZRC-70), Kuda, India. A, habitus, dorsal view; B, chelae, outer view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, posterior thoracic sternum and pleon.

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Figure 6.
Heteropanope glabraStimpson, 1858Stimpson, W. 1858. Prodromus descriptionis animalium evertebratorum, quae in expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federatamissa, C. Ringoold et J. Rogers ducibus, observavit et descripsit. Pars IV. Crustacea Cancroidea et Corystoidea. Proceedings of the Academy of Natural Science of Philadelphia, 10: 31-40., male (CW 14.4 mm, CL 10.1 mm) (LFSc.ZRC-66), Ghogha mangroves, India. A, habitus, dorsal view; B, chelae, outer view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, posterior thoracic sternum and pleon.

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Figure 7.
Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.); A, habitus, dorsal view; B, chelae, outer view.

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Figure 8.
Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.); A, fourth ambulatory leg merus and basis-ischium lateral view; B, pleon; C, frontal margin; D, posterior thoracic sternum and pleon.

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Figure 9.
A- C, Eurycarcinus orientalis A. Milne-Edwards, 1867Milne-Edwards, A. 1867. Descriptions de quelques espéces nouvelles de Crustacés Brachyures. Annales de la Société entomologique de France, 4e série, 7: 263-288., male (CW 41.5 mm, CL 26.9 mm) (LFSc.ZRC-64), Kamboi, India; D- F, Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., male (CW 28.2 mm, CL 19.9 mm) (LFSc.ZRC-63), Lakhpat, India; G-I, Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998)., holotype male (CW 25.1 mm, CL 16.9 mm) (ZSI-C3349/2), Chamta Block, India. A, D, G, ventral view of left G1; B, E, H, ventral view of distal part of left G1; C, F, I, left G2.

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Figure 10.
A-C, Pilumnopeus convexus (Maccagno, 1936Maccagno, T. 1936. Crostacei di Assab: Decapodi Stomatopodi Anfipodi. Spedizione del Barone Raimondo Franchetti in Dancalia (1928-29). Annali del Museo Civico di Storia Naturale di Genova, 59: 171-186.), male (CW 15.3 mm, CL 11.3 mm) (LFSc.ZRC-70), Kuda, India; D-F, Heteropanope glabraStimpson, 1858Stimpson, W. 1858. Prodromus descriptionis animalium evertebratorum, quae in expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federatamissa, C. Ringoold et J. Rogers ducibus, observavit et descripsit. Pars IV. Crustacea Cancroidea et Corystoidea. Proceedings of the Academy of Natural Science of Philadelphia, 10: 31-40., male (CW 14.4 mm, CL 10.1 mm) (LFSc.ZRC-66), Ghogha mangroves, India; G-I, Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.). A, D, G, ventral view of left G1; B, E, H, ventral view of distal part of left G1; C, F, I, left G2.

Figure 1. Eurycarcinus orientalis A. Milne-Edwards, 1867Milne-Edwards, A. 1867. Descriptions de quelques espéces nouvelles de Crustacés Brachyures. Annales de la Société entomologique de France, 4e série, 7: 263-288., male (CW 41.5 mm, CL 26.9 mm) (LFSc.ZRC-64), Kamboi, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

Figure 2. Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., male (CW 28.2 mm, CL 19.9 mm) (LFSc.ZRC-63), Lakhpat, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

Figure 3. Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998)., holotype male (CW 25.1 mm, CL 16.9 mm) (ZSI-C3349/2), Chamta Block, India. A, habitus, dorsal view; B, frontal view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, chelae, outer view; E, posterior thoracic sternum and pleon.

Figure 4. Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., paratype ovigerous female of Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998). (CW 21.3 mm; CL 15.3 mm) (ZSI-C3349/2), Chamta Block, India. A, habitus, dorsal view; B, frontal view; C, chelae, outer view; D, anterior thoracic sternum (sternites 1-4) and pleon.

Figure 5. Pilumnopeus convexus (Maccagno, 1936Maccagno, T. 1936. Crostacei di Assab: Decapodi Stomatopodi Anfipodi. Spedizione del Barone Raimondo Franchetti in Dancalia (1928-29). Annali del Museo Civico di Storia Naturale di Genova, 59: 171-186.), male (CW 15.3 mm, CL 11.3 mm) (LFSc.ZRC-70), Kuda, India. A, habitus, dorsal view; B, chelae, outer view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, posterior thoracic sternum and pleon.

Figure 6. Heteropanope glabraStimpson, 1858Stimpson, W. 1858. Prodromus descriptionis animalium evertebratorum, quae in expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federatamissa, C. Ringoold et J. Rogers ducibus, observavit et descripsit. Pars IV. Crustacea Cancroidea et Corystoidea. Proceedings of the Academy of Natural Science of Philadelphia, 10: 31-40., male (CW 14.4 mm, CL 10.1 mm) (LFSc.ZRC-66), Ghogha mangroves, India. A, habitus, dorsal view; B, chelae, outer view; C, anterior thoracic sternum (sternites 1-4) and pleon; D, posterior thoracic sternum and pleon.

Figure 7. Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.); A, habitus, dorsal view; B, chelae, outer view.

Figure 8. Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.); A, fourth ambulatory leg merus and basis-ischium lateral view; B, pleon; C, frontal margin; D, posterior thoracic sternum and pleon.

Figure 9. A- C, Eurycarcinus orientalis A. Milne-Edwards, 1867Milne-Edwards, A. 1867. Descriptions de quelques espéces nouvelles de Crustacés Brachyures. Annales de la Société entomologique de France, 4e série, 7: 263-288., male (CW 41.5 mm, CL 26.9 mm) (LFSc.ZRC-64), Kamboi, India; D- F, Eurycarcinus integrifrons De Man, 1879Man, J.G. de 1879. On some new or imperfectly known Podophthalmous Crustacea of the Leyden Museum. Notes from the Leyden Museum, 1: 53-73., male (CW 28.2 mm, CL 19.9 mm) (LFSc.ZRC-63), Lakhpat, India; G-I, Eurycarcinus bengalensisDeb, 1999Deb, M. 1999. Crustacea: Decapoda: crabs. p. 345-403. In: Director ZSI, Kolkata (ed), Fauna of west Bengal. State Fauna Series, 3. Kolkata, Zoological Survey of India , (part 10) (dated as 1998)., holotype male (CW 25.1 mm, CL 16.9 mm) (ZSI-C3349/2), Chamta Block, India. A, D, G, ventral view of left G1; B, E, H, ventral view of distal part of left G1; C, F, I, left G2.

Figure 10. A-C, Pilumnopeus convexus (Maccagno, 1936Maccagno, T. 1936. Crostacei di Assab: Decapodi Stomatopodi Anfipodi. Spedizione del Barone Raimondo Franchetti in Dancalia (1928-29). Annali del Museo Civico di Storia Naturale di Genova, 59: 171-186.), male (CW 15.3 mm, CL 11.3 mm) (LFSc.ZRC-70), Kuda, India; D-F, Heteropanope glabraStimpson, 1858Stimpson, W. 1858. Prodromus descriptionis animalium evertebratorum, quae in expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federatamissa, C. Ringoold et J. Rogers ducibus, observavit et descripsit. Pars IV. Crustacea Cancroidea et Corystoidea. Proceedings of the Academy of Natural Science of Philadelphia, 10: 31-40., male (CW 14.4 mm, CL 10.1 mm) (LFSc.ZRC-66), Ghogha mangroves, India; G-I, Aniptumnus quadridentatus (De Man, 1895Man, J.G. de 1895. Berichtüber die von Herrn Schiffscapitän Storm zu Atjeh, an den westlichen Küsten von Malakka, Borneo und Celebes sowie in der Java-See gesammelten Decapoden und Stomatopoden. Zoologische Jahrbücher, Abteilungfür Systematik, Geographie und Biologie der Thiere, 8: 485-609.), male (CW 13.9 mm; CL 9.6 mm) (ZSI-C1503/2) Matla River, India (lectotype of Heteropanope neolaevisDeb, 1995Deb, M. 1995. Crustacea: Xanthidae. p. 217-228. In: A. K. Ghosh (ed), Hugli Matla estuary west Bengal. Estuarine Ecosystem Series, 2. Kolkata, Zoological Survey of India.). A, D, G, ventral view of left G1; B, E, H, ventral view of distal part of left G1; C, F, I, left G2.

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On the Indian species of Eurycarcinus A. Milne-Edwards, 1867, Heteropanope Stimpson, 1858, and Pilumnopeus A. Milne-Edwards, 1867 (Decapoda: Brachyura: Pilumnidae)

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[1] CORRESPONDING AUTHOR
Jigneshkumar N. Trivedi jntrivedi26@yahoo.co.in