A new hermit crab of the genus Calcinus from Rapa Island, French Polynesia with affinities to Calcinus dapsiles Morgan, 1989 and Calcinus sirius Morgan, 1991 (Decapoda: Anomura: Diogenidae)

A new hermit crab of the genus Calcinus Dana, 1851 is described from a specimen collected at a depth of 100 m near Rapa Island, Austral Islands, French Polynesia. In a previous report, we had reported this specimen provisionally as Calcinus aff. sirius, pending availability of live color data for Calcinus sirius Morgan, 1991. Recently obtained color photographs of live C. sirius from the Solitary Islands, Eastern Australia, has shown that the specimen from Rapa Island is distinct from Morgan’s taxon and represents a new species which is fully illustrated and described herein as Calcinus shawi sp. nov. The morphology and coloration of this new species are compared with the closely allied C. sirius and Calcinus dapsiles Morgan, 1989.

Keywords:
Australia; Austral Islands; Rapa Island; new species; taxonomy

Authorship

Joseph Poupin

BCRM de Brest, École Navale. CC 600, 29240 BREST CEDEX 09, France.BCRM de BrestFranceFranceBCRM de Brest, École Navale. CC 600, 29240 BREST CEDEX 09, France.

https://orcid.org/0000-0002-8293-0855

Rafael Lemaitre

Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution. 4210 Silver Hill Road, Suitland, MD 20746, United States of America.Smithsonian InstitutionUnited States of AmericaUnited States of AmericaDepartment of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution. 4210 Silver Hill Road, Suitland, MD 20746, United States of America.

https://orcid.org/0000-0003-2828-612X

CORRESPONDING AUTHOR
Joseph Poupin joseph.poupin@ecole-navale.fr

JP E-mail:
joseph.poupin@ecole-navale.fr

RL E-mail:
lemaitrr@si.edu

SCIMAGO INSTITUTIONS RANKINGS

BCRM de Brest, École Navale. CC 600, 29240 BREST CEDEX 09, France.BCRM de BrestFranceFranceBCRM de Brest, École Navale. CC 600, 29240 BREST CEDEX 09, France.

Figures

Figures (4)

Thumbnail

Figure 1.
Calcinus shawi sp. nov., ovigerous female, SL 5.5 mm, holotype MNHN-IU-2011-5105 (ex-MNHN Pg 6395), Genbank n° FJ620251. A, color in life; B, shield, ocular acicles, and ocular peduncles; B’, detail of ocular acicles; C, left large chela, outer face; D, right small chela outer face; E, distal part of propodus and dactyl of left P2, outer face; F, left P2, outer face; G, left P3, outer face; H, telson, ventral face. Scale bars: A, B = 5 mm; C-G = 1 mm; H = 0.5 mm

Thumbnail

Figure 2.
Calcinus dapsilesMorgan, 1989Morgan, G.J. 1989. The hermit crabs (Decapoda, Anomura, Diogenidae, Paguridae) of southwestern Australia, with description of two new species. Records of the Western Australian Museum, 14: 391-417., live color. A, off Perth, -31.7243 115.244, 102.3 m, 19 November 2005, photograph Karen Gowlett-Holmes, CSIRO Catalogue Number MIIC-03696 (also in Poore et al., 2008Poore, G.C.B.; McCallum, A.W. and Taylor, J. 2008. Decapod Crustacea of the continental margin of southwestern and central Western Australia: preliminary identifications of 524 species from FRV Southern Surveyor voyage SS10-2005. Museum Victoria Science Report, 11: 1-106.; McEnnulty et al., 2011McEnnulty, F.R.; Gowlett-Holmes, K.L.; Williams, A.; Althaus, F.; Fromont, J.; Poore, G.C.B.; O'Hara, T.D.; Marsh, L.; Kott; P., Slack-Smith, S.; Alderslade, P. and Kitahara, M.V. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100-1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum, Supplement, 80: 1-191.); B, Perth, Ammo Jetty, 2 January 2015, 7.7 m, photograph Matthias Liffers (also in Myorin, 2021Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); C, Perth, Ammo Jetty, 9 March 2020, -32.1240 115.7582, 7.5 m, silt and sand bottom, photograph Rokus Groeneveld (also in Myorin, 2021Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); D, same place and photographer, 11 March 2020, 6.5 m.

Thumbnail

Figure 3.
Calcinus siriusMorgan (1991Morgan, G.J. 1991. A review of the hermit crab genus Calcinus Dana (Crustacea: Decapoda: Diogenidae) from Australia, with description of two new species. Invertebrate Taxonomy, 5: 869-913.), live color. A, North Solitary Island, 26 February 2017; B, Northwest Solitary Island, 13 May 2020 (also in Myorin, 2021Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); C) South Solitary Island, 18 February 2019; D) South Solitary Island, 9 May 2019. Photographs Ian Shaw.

Thumbnail

Figure 4.
Geographic distribution of Calcinus dapsiles (0-102 m), C. sirius (2-27 m) and C. shawi sp. nov. (100 m), from published records complemented with additional records in Australian databases; three doubtful records indicated by ‘?’ (see text). Map background adapted from Google Map.

Figure 1. Calcinus shawi sp. nov., ovigerous female, SL 5.5 mm, holotype MNHN-IU-2011-5105 (ex-MNHN Pg 6395), Genbank n° FJ620251. A, color in life; B, shield, ocular acicles, and ocular peduncles; B’, detail of ocular acicles; C, left large chela, outer face; D, right small chela outer face; E, distal part of propodus and dactyl of left P2, outer face; F, left P2, outer face; G, left P3, outer face; H, telson, ventral face. Scale bars: A, B = 5 mm; C-G = 1 mm; H = 0.5 mm

Figure 2. Calcinus dapsilesMorgan, 1989Morgan, G.J. 1989. The hermit crabs (Decapoda, Anomura, Diogenidae, Paguridae) of southwestern Australia, with description of two new species. Records of the Western Australian Museum, 14: 391-417., live color. A, off Perth, -31.7243 115.244, 102.3 m, 19 November 2005, photograph Karen Gowlett-Holmes, CSIRO Catalogue Number MIIC-03696 (also in **Poore et al., 2008Poore, G.C.B.; McCallum, A.W. and Taylor, J. 2008. Decapod Crustacea of the continental margin of southwestern and central Western Australia: preliminary identifications of 524 species from FRV Southern Surveyor voyage SS10-2005. Museum Victoria Science Report, 11: 1-106.; McEnnulty et al., 2011McEnnulty, F.R.; Gowlett-Holmes, K.L.; Williams, A.; Althaus, F.; Fromont, J.; Poore, G.C.B.; O'Hara, T.D.; Marsh, L.; Kott; P., Slack-Smith, S.; Alderslade, P. and Kitahara, M.V. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100-1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum, Supplement, 80: 1-191.); B, Perth, Ammo Jetty, 2 January 2015, 7.7 m, photograph Matthias Liffers (also in Myorin, 2021Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); C, Perth, Ammo Jetty, 9 March 2020, -32.1240 115.7582, 7.5 m, silt and sand bottom, photograph Rokus Groeneveld (also in Myorin, 2021**Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); D, same place and photographer, 11 March 2020, 6.5 m.

Figure 3. Calcinus siriusMorgan (1991Morgan, G.J. 1991. A review of the hermit crab genus Calcinus Dana (Crustacea: Decapoda: Diogenidae) from Australia, with description of two new species. Invertebrate Taxonomy, 5: 869-913.), live color. A, North Solitary Island, 26 February 2017; B, Northwest Solitary Island, 13 May 2020 (also in Myorin, 2021Myorin, E. 2021. The hermit crab visual dictionary. Available at Available at https://1023world.net/ypark/anomura/ . Accessed on August 2021 (in Japanese).
https://1023world.net/ypark/anomura/... ); C) South Solitary Island, 18 February 2019; D) South Solitary Island, 9 May 2019. Photographs Ian Shaw.

Figure 4. Geographic distribution of Calcinus dapsiles (0-102 m), C. sirius (2-27 m) and C. shawi sp. nov. (100 m), from published records complemented with additional records in Australian databases; three doubtful records indicated by ‘?’ (see text). Map background adapted from Google Map.

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Sociedade Brasileira de Carcinologia Instituto de Biociências, UNESP, Campus Botucatu, Rua Professor Doutor Antônio Celso Wagner Zanin, 250 , Botucatu, SP, 18618-689 - Botucatu - SP - Brazil
E-mail: editor.nauplius@gmail.com

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A new hermit crab of the genus Calcinus from Rapa Island, French Polynesia with affinities to Calcinus dapsiles Morgan, 1989 and Calcinus sirius Morgan, 1991 (Decapoda: Anomura: Diogenidae)

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[1] CORRESPONDING AUTHOR
Joseph Poupin joseph.poupin@ecole-navale.fr