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FIGURE 3. Calcinus gouti Poupin, 1997 in Hermit crabs of the genus Calcinus Dana, 1851 (Decapoda: Anomura: Diogenidae) from the Austral Islands, French Polynesia, with description of a new species

FIGURE 3. Calcinus gouti Poupin, 1997, ɗ 5.0 mm, Tikehau Atoll, 15 m (UF 1349): a, anterior portion of shield and cephalic appendages; b, left chela and carpus, outer face; c, right chela and carpus, outer face; d, right P 2, outer face; e, right P 3, outer face; f, posterior portion of telson, ventral view. Scale bars 1 mm.

FIGURE 5 in Hermit crabs of the genus Calcinus Dana, 1851 (Decapoda: Anomura: Diogenidae) from the Austral Islands, French Polynesia, with description of a new species

FIGURE 5. Left chela: a, Calcinus albengai n. sp., holotype ɗ 3.8 mm, Marotiri Isles, 100 – 120 m (MNHN Pg 6359); b, Calcinus aff. sirius, ov. Ψ 5.5 mm, Rapa Island, 100 m (MNHN Pg 6395). Scale bars 1 mm.

FIGURE 1 in Hermit crabs of the genus Calcinus Dana, 1851 (Decapoda: Anomura: Diogenidae) from the Austral Islands, French Polynesia, with description of a new species

FIGURE 1. Live coloration (except b, taken several weeks after preservation): a, Calcinus albengai n. sp., deepwater variant, holotype ɗ 3.8 mm, Marotiri Isles, 100 – 120 m (MNHN Pg 6359); b, Calcinus albengai n. sp., shallowwater variant, ɗ 3.5 mm, Rapa Island, 53 m (MNHN Pg 6382); c, Calcinus gouti Poupin, 1997, ɗ 5.0 mm, Tikehau, 15 m (UF 1349); d, Calcinus aff. sirius Morgan, 1991, 1 ov. Ψ 5.5 mm, Rapa Island, 100 m (MNHN Pg 6395). Photographs by L. Albenga (a, b), G. Paulay (c), and J. Poupin (d).

FIGURE 4. Calcinus aff. sirius Morgan, 1991 in Hermit crabs of the genus Calcinus Dana, 1851 (Decapoda: Anomura: Diogenidae) from the Austral Islands, French Polynesia, with description of a new species

FIGURE 4. Calcinus aff. sirius Morgan, 1991, ov. Ψ 5.5 mm, Rapa Island, 100 m (MNHN Pg 6395): a, distal part of propodus, and dactyl of left P 2, outer face; b, left P 2, outer face; c, left P 3, outer face. Scale bars 1 mm.

FIGURE 2. Calcinus albengai n in Hermit crabs of the genus Calcinus Dana, 1851 (Decapoda: Anomura: Diogenidae) from the Austral Islands, French Polynesia, with description of a new species

FIGURE 2. Calcinus albengai n. sp.: a – f, holotype ɗ 3.8 mm, Marotiri Isles (MNHN Pg 6359); g, paratype ov. Ψ 3.0 mm, Neilson Reef, 150 m (MNHN Pg 6361); h, ɗ 3.5 mm, Rapa Island, 53 m (MNHN Pg 6382). a, anterior portion of shield and cephalic appendages; b, left chela and carpus, outer face; c, right chela and carpus, outer face; d, left P 2 of deepwater variant, outer face; e, left P 3 of deepwater variant, outer face; f, posterior portion of telson, ventral view; g, left chela and carpus, outer face; h, left P 3 of shallowwater variant, outer face. Scale bars 1 mm.

Fig. 4. Diogenes kombalensis, new species. A in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 4. Diogenes kombalensis, new species. A, holotype, male 3.3 mm (MZB Cru 5757); B, paratype, ovigerous female, 2.8 mm (MZB Cru 5759); C, paratype, male, 3.6 mm (ZRC 2023.0673).

Fig. 3 in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 3. Diogenes luteus, new species, holotype, male, 2.2 mm (MZB Cru 5754). A, left pereopod 2, lateral view; B, left pereopod 3, lateral view. Scales = 1 mm. Setae partially omitted.

Fig. 1. A in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 1. A, Diogenes takedai Rahayu, 2012 (not measured and sexed); B, Diogenes luteus, new species, holotype, male 2.2 mm (MZB Cru 5754); C, Diogenes luteus, new species, paratype, ovigerous female, 1.6 mm (ZRC 2023.0671); D, Diogenes luteus, new species, paratype, male, 2.5 mm (MZB Cru 5755).

Fig. 6 in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 6. Diogenes kombalensis, new species, holotype, male, 3.5 mm (MZB Cru 5757). A, left pereopod 2, lateral view; B, left pereopod 3, lateral view. Scales = 1 mm. Setae partially omitted.

Fig. 2 in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 2. Diogenes luteus, new species, holotype, male, 2.2 mm (MZB Cru 5754). A, shield and cephalic appendages; B, left antennal peduncle (articles 1–4), ventral view; C, right maxilliped 3, lateral view; D, right maxilliped 3, ischium and basis, lateral view; E, left cheliped, chela and carpus outer view; F, same, chela, mesial view; G, same, merus, lateral view; H, right cheliped, chela and carpus, outer view; I, right pereopod 4, lateral view; J, telson, dorsal view. Scales, A, E‒H = 1 mm; B, C, D, I, J = 0.5 mm. Setae partially omitted.

Fig. 5 in Two new hermit crab species of the genus Diogenes Dana, 1851 from Lombok Island, Indonesia (Crustacea: Decapoda: Anomura: Diogenidae)

Fig. 5. Diogenes kombalensis, new species, holotype, male, 3.5 mm (MZB Cru 5757). A, shield and cephalic appendages; B, right maxilliped 3, lateral view; C, right maxilliped 3, ischium and basis, lateral view; D, left cheliped, chela and carpus, outer view; E, same, merus, lateral view; F, same, chela, mesial view; G, same, inner view; H, right cheliped, chela and carpus, outer view; I, left pereopod 4, lateral view; J, telson, dorsal view. Scales, A, B, D‒J = 1 mm; C = 0.5 mm. Setae partially omitted.

Fig. 8. A in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 8. A, Diogenes avarus Heller, 1852, not collected, IT86, Cyrene Reef, 1°15.374′N 103°44.816′E, 27 May 2013; B, Diogenes fasciatus Rahayu & Forest, 1995, male, 5.3 mm (ZRC 2021.0132); C, Diogenes klaasi Rahayu & Forest, 1995, male, not collected, Singapore Strait; D, Diogenes laevicarpus Rahayu, 1996, male, 5.1 mm (ZRC 2021.0139); E, Diogenes moosai Rahayu & Forest, 1995, male, 1.8 mm (ZRC 2021.0160); F, Diogenes rectimanus Miers, 1884, male, not collected, DW58, East of Pulau Tekong, 01°25.064′N 104°04.992′E, 10.9–11.3 m, 22 October 2012.

Fig. 14. A in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 14. A, Pagurus hedleyi (Grant & McCulloch, 1906), male, not measured and sexed, st. SD25, St John's Island, 01°12.882′N 103°50.952′E, 22 May 2013; B, Pagurus kulkarnii Sankoli, 1962, ovigerous female, 4.2 mm (ZRC 2021.0253); C, D, Pagurus pitagsaleei McLaughlin, 2002a, C, male, not collected, st. SD25, St John's Island, 01°12.882′N 103°50.952′E, 22 May 2013; D, male, 4.9 mm (ZRC 2021.0239); E, Pagurus tenuilineatus, new species, paratype, male, 4.2 mm (ZRC 2021.0255); F, Spiropagurus spiriger (De Haan, 1849), ovigerous female, not collected, Johor Strait.

Fig. 9. A, B in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 9. A, B, Diogenes inglei McLaughlin & Clark, 1997, ovigerous female, 1.8 mm (ZRC 2021.0201); C, Diogenes pallescens Whitelegge, 1897, male, not collected, st. SD40, West P. Semakau, 1°12.389′N 103°45.24′E, 23 May 2013; D, Diogenes tumidus Rahayu & Forest, 1995, male, not collected, SW53, Seringat Kias, artificial lagoon, 1°13.630′N 103°51.218′E, 24 May 2013.

Fig. 6. A in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 6. A, Diogenes jubatus (Nobili, 1903), male, 5.1 mm (ZRC 2021.0114); B, Diogenes platyops Rahayu & Forest, 1995, male, 4.9 mm (ZRC 2021.0118). A, B, left cheliped, P2 and P3.

Fig. 2. A, B in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 2. A, B, Dardanus hessii (Miers, 1884), male, 13.8 mm (ZRC 2021.0105), B, photo from Rahayu & Ong, 2015; C, D, Dardanus lagopodes (Forskål, 1775), male, 14.9 mm (ZRC 2021.0106); E, Dardanus megistos (Herbst, 1804), not measured, St John's Island, 2013.

Fig. 5. A–C in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 5. A–C, Diogenes jubatus (Nobili, 1903), male, 5.1 mm (ZRC 2021.0114); D–F, Diogenes platyops Rahayu & Forest, 1995, male, 4.9 mm (ZRC 2021.0118); G–I, Diogenes jousseaumei (Bouvier, 1897), ovigerous female, 5.8 mm (ZRC 2021.0128). A, D, G, shield and cephalic appendages; B, E, H, anterior lobe of sternite of third pereopods; C, F, I, telson. Scale = 1 mm.

Fig. 4. A in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 4. A, Diogenes mixtus Lanchester, 1902, male, 8.0 mm (ZRC 2021.0111); B, Diogenes planimanus Henderson, 1893, male, 6.7 mm (ZRC 2021.0112).

Fig. 1. A, B in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 1. A, B, Clibanarius infraspinatus Hilgendorf, 1869, male, not collected; C, D, Clibanarius longitarsus (De Haan, 1849), female, 9.4 mm (ZRC 2021.0103).

Fig. 11. A in Hermit crabs of Singapore (Crustacea: Decapoda: Anomura: Diogenidae, Paguridae), with description of two new species

Fig. 11. A, Paguristes longirostris Dana, 1852, ovigerous female, 6.4 mm (ZRC 2021.0224); B, Pseudopaguristes monoporus (Morgan, 1987), male, 3.8 mm (ZRC 2021.0235).