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Fig. 2 in Indopinnixa shellorum, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) associated with a sipunculid from Singapore

Fig. 2. Indopinnixa shellorum, new species, holotype male (4.01 × 2.45 mm) (ZRC 2014.0367), St. John's Island, Singapore. A, dorsal surface of carapace; B, anterior thoracic sternum and sterno-abdominal cavity.

Fig. 14 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 14. Latatheres tomentipes (Takeda & Konishi, 1994) new combination, ovigerous female holotype, cl 3.8 mm, cw 4.7 mm, Okinawa, NSMT Cr11350. A, dorsal habitus; B, carapace, right lateral view; C, cephalothorax, anterior view; D, right maxilliped 3; E, right chela, anterior view (tomentum omitted); F–I, right pereopods 2–5. Scale: A, B, F–I = 1.0 mm; C, E = 0.5 mm; D = 0.25 mm.

Fig. 13 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 13. Distribution of species of Latatheres new genus. (●) L. affinis (H. Milne Edwards, 1853) new combination; (■) L. tomentipes (Takeda & Konishi, 1994) new combination.

Fig. 10. Discorsotheres camposi new species. A–M in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 10. Discorsotheres camposi new species. A–M, female holotype, cl 10.8 mm, cw 10.3 mm, Tonga, ZRC 2003.0299; N–Q, ovigerous female paratype, cl 12.9 mm, cw 14.0 mm, Lifou, MNHN-IU-2017-11712; R–T, ovigerous female paratype, cl 15.3 mm, cw 16.4 mm, Caroline Islands, USNM 104989; U–W, ovigerous female paratype, cl 14.9 mm, cw 17.5 mm, Caroline Islands, USNM 104989. A, dorsal habitus; B, carapace, anterior view; C, carapace, right lateral view; D, cephalothorax, anterior view; E, right maxilliped 3; F, right chela, anterior view; G–I, left pereopods 2–4; J–M, right pereopods 2–5; N, left cheliped pollex, oblique anterior view; O, R, U, carapace anterior margin, dorsal view; P, S, V, left pereopod 3 dactylus & propodus; Q, T, W, right pereopod 3 dactylus & propodus. Scale: A–C, G–M, O–W = 2.0 mm; D–F = 1.0 mm; N = 0.5 mm.

Fig. 9 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 9. Discorsotheres subglobosus (Baker, 1907) new combination. A–G, female lectotype, cl 10.6 mm, cw 12.4 mm, Gulf St. Vincent, AM P151; H–I, ovigerous female paralectotype, cl 8.7 mm, cw 9.9 mm, Gulf St. Vincent, AM P102300; J–K, ovigerous female, cl 8.6 mm, cw 10.5 mm, Edithburgh, AM P64673; L–M, ovigerous female, cl 7.3 mm, cw 8.9 mm, Edithburgh, AM P64673; N–O, females, cl 7.8 cw 8.4, cl 7.8 cw 9.5 mm, Seacliff reef, SAM C12812. A, dorsal habitus; B, carapace, anterior view; C, carapace, right lateral view; D, cephalothorax, anterior view; E, right maxilliped 3; F, right chela, anterior view; G, right cheliped pollex, oblique anterior view; H, J, L, left pereopod 3; I, K, M, right pereopod 3; N, O, carapace frontal margin, dorsal view. Scale: A–C, H–M = 4.0 mm; D–F, N, O = 2.0 mm; G = 1.0.

Fig. 8 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 8. Distribution of species of Discorsotheres new genus. (■) D. camposi new species; (●) D. spondyli (Nobili, 1905) new combination; (▲) D. subglobosus (Baker, 1907) new combination; (▼) D. subquadratus (Sakai, 1939) new combination.

Fig. 12 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 12. Discorsotheres subquadratus (Sakai, 1939) new combination. A–H, female neotype, cl 7.1 mm, cw 8.6 mm, Suruga Bay, NSMT Cr10028; I–M, ovigerous female, cl 7.5 mm, cw 9.2 mm, Boso Peninsula, CBM ZC5989. A, dorsal habitus; B, carapace, anterior view; C, carapace, right lateral view; D, cephalothorax, anterior view; E, I, carapace frontal margin, dorsal view; F, right maxilliped 3; G, right chela, anterior view; H, right cheliped pollex, oblique anterior view; J–K, left pereopods 3–4; L–M, right pereopods 3–4. Scale: A–C, J–M = 2.0 mm; D–I = 1.0 mm.

Fig. 7 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 7. Austrotheres holothuriensis (Baker, 1907) new combination. A–G, female lectotype, cl 8.3 mm, cw 7.2 mm, Gulf St. Vincent, SAM C1389; H–N, male paralectotype, cl 6.2 mm, cw 6.5 mm, Gulf St. Vincent, SAM C1389; O–Q, male, cl 5.5 mm, cw 5.2 mm, Shoreham, AM G5724; R–S, female, cl 13.6 mm, cw 12.6 mm, Tasmania, AM P4047. A, H, carapace, dorsal view; B, I, left maxilliped 3; C, J, right cheliped, anterior view; D, right pereopod 2; E, K, right pereopod 3; F, L, right pereopod 4; G, M, right pereopod 5; N, male abdomen; O, right G1, sternal view; P, right G1 tip, mesial view; Q, right G2, sternal view; R, carapace, right lateral view; S, cephalothorax, anterior view. A, C–H, J–M = 2.0 mm; B, I, N = 1.0 mm; O–Q = 0.5; R = 2.8 mm; S = 1.4 mm.

Fig. 15 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 15. Latatheres affinis (H. Milne Edwards, 1853) new combination, ovigerous female neotype, cl 4.5 mm, cw 5.8 mm, Djibouti, MNHN IU-2016-10944. A, dorsal habitus; B, cephalothorax, anterior view; C, right maxilliped 3; D, right chela, anterior view; E–H, right pereopods 2–5. Scale: A, D = 1.0 mm; B, C, E–H = 0.5 mm.

Fig. 3 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 3. Ostracotheres tridacnae (Rüppell, 1830). A–D, type material of Ostracotheres savignyi H. Milne Edwards, 1853, Red Sea; E–F, colour in life, male (cl 8.8 mm, cw 8.7 mm) and female (cl 12.2 mm, cw 12.0 mm), Farasan Islands, Red Sea, UF37023–37024. A, from left to right and upper to lower, lectotype female (cl 12.1 mm, cw 11.3 mm, MNHN-IU-2000-3066), paralectotype male (cl 9.5 mm, cw 9.4 mm, MNHN-IU-2000-1120), paralectotype male (cl 9.5 mm, cw 9.7 mm, MNHN-IU-2000-1121), paralectotype male (cl 7.7 mm, cw 7.9 mm, MNHN-IU-2000-1122), paralectotype male (cl 7.9 mm, cw 7.6 mm, MNHN-IU-2000-1123); B, lectotype female, cl 12.1 mm, cw 11.3 mm, MNHN-IU-2000-3066; C, paralectotype male, cl 12.1 mm, cw 11.3 mm, MNHN-IU-2000-1120; D, same, right G1, scale = 1.0 mm. (Photos: A–D, Noémy Mollaret and Marie Hennion; E–F, Arthur Anker).

Fig. 2 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 2. Ostracotheres tridacnae (Rüppell, 1830). A–I, female, cl 11.8 mm, cw 11.7 mm, Red Sea, MNHN-IU-2016-10949; J–K, male, cl 8.0 mm, cw 7.6 mm, Red Sea, MNHN-IU-2016-10950; L–O, male, cl 12.1 mm, cw 12.1 mm, Red Sea, NHMD-229248. A, J, dorsal habitus; B, right cheliped, anterior view; C–F, right pereopods 2–5; G, right maxilliped 3; H, carapace, right lateral view; I, cephalothorax, anterior view; K, male abdomen; L, left G1, sternal view; M, left G1, tip, abdominal view; N, left G2, sternal view; O, right pereopod 5 dactylus. Scale: A–F, H, J, K = 4.0 mm; G, I, L, N, O = 1.0 mm; M = 0.5 mm.

Fig. 1 in Revision of Ostracotheres H. Milne Edwards, 1853 (Crustacea: Brachyura: Pinnotheridae)

Fig. 1. Distribution of species of Ostracotheres H. Milne Edwards, 1853. (▲) O. cynthiae Nobili, 1906; (●) O. tridacnae (Rüppell, 1830).

Fig. 7 in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 7. Arcotheres placunae (Hornell & Southwell, 1909), overall habitus. A, neotype ovigerous female (11.0 × 8.1 mm) (ZRC 2017.1293), India; B, ovigerous female (9.2 × 6.9 mm) (ZRC 2017.1008), Pakistan; C, ovigerous female (11.5 × 7.9 mm) (ZRC 2017.1008), Pakistan; D, male (7.0 × 5.8 mm), (ZRC 2017.1065), India.

Fig. 6. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 6. Arcotheres placunicola n. sp. Colour in life. A, B, paratype ovigerous female (8.0 × 6.1 mm); C, paratype non-ovigerous female with rhizocephalan (9.0 × 7.4 mm); D, paratype male with rhizocephalan (5.6 × 5.1 mm); E, F, paratype ovigerous female (7.3 × 5.9 mm) (crab indicated by arrow); G, H = paratype ovigerous female (9.5 × 7.2 mm). E, in situ on Placuna ephippium Philipsson, 1788 (Placunidae). All material from ZRC 2017.1015, Changi, Singapore.

Fig. 5. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 5. Arcotheres placunicola n. sp. Colour in life. A–D, G, paratype specimens from ZRC 2017.1010, Changi, Singapore; E, paratype female (8.8 × 6.9 mm) (ZRC 2017.1010), Changi, Singapore; F, paratype male (4.7 × 4.1 mm) (ZRC 2017.1010), Changi, Singapore. A, G, in situ on Placuna ephippium Philipsson, 1788 (Placunidae).

Fig. 8 in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 8. Arcotheres placunae (Hornell & Southwell, 1909), ovigerous female (11.5 × 7.9 mm) (ZRC 2017.1008), Pakistan. A–D, left P2–P5, respectively; E–H, right P2–P5, respectively; D', distal part of dactylus of left P5 showing stiff subdistal spinules (dorsal view, setae not drawn); H', distal part of dactylus of left P5 showing stiff subdistal spinules (ventral view, setae not drawn); H" = distal part of dactylus of right P5 showing stiff subdistal spinules (dorsal view, setae not drawn); I, outer view of right MXP3; J, right chela and carpus. Scales: A–H, J = 1.0 mm; D', H', H", I = 0.5 mm.

Fig. 4. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 4. Arcotheres placunicola n. sp. A, B, D–P, paratype male (5.6 × 4.7 mm) (ZRC 2017.1010); C, Q, paratype young male (2.4 × 2.4 mm) (ZRC 2017.1014). Both specimens from Changi, Singapore. A, right chela and carpus (setae not drawn); B, C, male pleon; D, right MXP3 (setae not drawn); E–H, right P2–P5, respectively; I–L, left P2–P5, respectively (setae not drawn); L', distal part of P5 dactylus (dorsal view, soft setae not drawn); M, left G1 (ventral view, setae not drawn); N, left G1 (dorsal view, setae not drawn); O, left G2 (setae not drawn); P, right G2 (mesial view showing exopod, setae not drawn). Scales: A, B, E–L = 1.0 mm; M–P = 0.5 mm; C, L', Q = 0.25 mm.

Fig. 2. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 2. Arcotheres placunicola n. sp. A, paratype ovigerous female (10.4 × 8.3 mm) (ZRC 2017.1010); B, paratype male (5.6 × 4.7 mm) (ZRC 2017.1010); C, paratype young male (2.4 × 2.4 mm) (ZRC 2017.1014); D, paratype male (4.7 × 4.1 mm) (ZRC 2017.1010). A–C, overall habitus; D, male anterior thoracic sternum. All specimens from Changi, Singapore.

Fig. 1. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 1. Arcotheres placunicola n. sp., holotype ovigerous female (11.2 × 8.6 mm) (ZRC 2017.1009), Changi, Singapore. A, overall habitus; B, ventral view of cephalothorax; C, frontal view of cephalothorax; D, outer view of left chela.

Fig. 3. Arcotheres placunicola n in Arcotheres placunicola, a new species of pea crab (Crustacea: Brachyura: Pinnotheridae) from the window-pane shell, Placuna ephippium Philipsson, 1788 (Placunidae) in Singapore

Fig. 3. Arcotheres placunicola n. sp. A, L, paratype ovigerous female (10.1 × 8.0 mm) (ZRC 2017.1012), Changi, Singapore; B–K, holotype ovigerous female (11.2 × 8.6 mm) (ZRC 2017.1009), Changi, Singapore. A–D, left P2–P5, respectively; E–H, right P2–P5, respectively; D', distal part of dactylus of left P5 showing stiff subdistal spinules (dorsal view, soft setae not drawn); H', distal part of dactylus of right P5 showing stiff subdistal spinules (ventral view, soft setae not drawn); H", distal part of dactylus of left P5 showing stiff subdistal spinules (dorsal view, soft setae not drawn); I, fingers of right chela (setae denuded); J, left chela and carpus; K, L, outer view of right MXP3. Scales: A–H, J = 1.0 mm; D', H', H", I, K, L = 0.5 mm.