Sphenomerides trapezioides (Wood-Mason in Wood-Mason & Alcock, 1891)

Ng, Peter K. L., Ahyong, Shane T. & Castro, Peter, 2023, Re-appraisal of the families and subfamilies of Trapezioidea Miers, 1886, with establishment of a new family, Ectaesthesiidae (Crustacea: Decapoda: Brachyura), Raffles Bulletin of Zoology 71, pp. 606-631 : 622

publication ID	https://doi.org/10.26107/RBZ-2023-0047
publication LSID	lsid:zoobank.org:pub:821BC4EC-5AF9-4727-84A3-C44839DFBE28
DOI	https://doi.org/10.5281/zenodo.10271583
persistent identifier	https://treatment.plazi.org/id/038EC92D-7962-7E4E-FCF8-6B6521AEF958
treatment provided by	Felipe (2023-12-05 23:36:01, last updated 2023-12-05 23:49:35)
scientific name	Sphenomerides trapezioides
status

Treatment

Sphenomerides trapezioides View in CoL (Wood-Mason in Wood-Mason & Alcock, 1891)

( Figs. 5C View Fig , 6D View Fig , 7E View Fig , 8D, J View Fig , 9I, J View Fig , 10E View Fig , 12 View Fig )

Sphenomerus trapezioides Wood-Mason & Alcock, 1891: 263 View in CoL (type locality: Andaman Sea); Wood-Mason, 1892: pl. 5, fig. 2; Alcock, 1898: 228.

Sphenomerides trapezioides View in CoL — Serène, 1973: 207, figs. 6, 27, 28, pl. 5, 1984: 289, fig. 196, pl. 42, fig. D; Castro et al., 2004: 34 (in key), 60, pl. 4 fig. E; Ng et al., 2008: 185; Castro, 2013: 461, figs. 2F–H; Silambarasan et al., 2023: 550 View Cited Treatment , fig. 4C.

Diagnosis. As for subfamily.

Remarks. See remarks for genus.

References

Alcock A (1898) Materials for a carcinological fauna of India. No. 3. The Brachyura Cyclometopa. Part I. The family Xanthidae. Journal of the Asiatic Society of Bengal, 57 (2): 67 - 233.

Castro P, Ng, PKL & Ahyong, ST (2004) Phylogeny and systematics of the Trapeziidae Miers, 1886 (Crustacea: Brachyura), with the description of a new family. Zootaxa, 643: 1 - 70.

Castro P (2013) Brachyuran crabs (Crustacea, Brachyura: Crossotonotidae, Ethusidae, Euryplacidae, Goneplacidae, Latreilliidae, Palicidae, Tetraliidae, Trapeziidae) of the MAINBAZA, MIRIKI, and ATIMO VATAE expeditions to the Mozambique Channel and Madagascar. In: Ahyong ST, Chan T-Y, Corbari L & Ng PKL (eds.) Tropical Deep-Sea Benthos, 27. Memoires du Museum national d'Histoire naturelle (Paris), 204: 437 - 466.

Ng PKL, Guinot D & Davie PJF (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, Supplement 17: 1 - 286.

Serene R (1973) Observations sur les especes des genres Quadrella Dana 1851 et Sphenomerides Rathbun 1898 (Decapoda- Brachyura). Bulletin de la Societe Zoologique de France, 98: 191 - 209.

Silambarasan K, Kar AB, Prasad GVA, Pattnayak SK, Das P, Reddy DB & Ramalingan LP (2023) On some commensal anomuran and brachyuran crabs (Crustacea: Decapoda) off Visakhapatnam, Northwestern Bay of Bengal. Zootaxa, 5325: 541 - 555.

Wood-Mason J & Alcock A (1891) Note on the results of the last seasons deep-sea dredging: Natural history notes from H. M. Indian Marine Survey Steamer Investigator, no. 21. Annals and Magazine of Natural History, Series 6, 7: 186 - 202, 258 - 272.

Wood-Mason J (1892) Illustrations of the Zoology of H. M. Indian Marine Surveying Steamer Investigator, under the command of Commander A. Carpenter, R. N., D. S. O., and of Commander R. F. Hoskyn, R. N. Part I. Crustaceans. Director of the Royal Indian Marine, Calcutta, V pls. [5 unnumbered pages of explanation of pls.]

Figures

Fig. 5. Frontal view of cephalothorax showing epistome, orbits, antennules, and antenna. A, Tetralia cinctipes, male (9.5 × 9.5 mm) (ZRC 2019.0701), Japan; B, Trapezia cymodoce, male (11.6 × 9.9 mm) (ZRC 1999.2385), Singapore; C, Sphenomerides trapezioides, male (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar; D, Calocarcinus africanus, male (9.3 × 7.2 mm) (ZRC 2008.1281), New Caledonia; E, Domecia acanthophora, male (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; F, Cherusius triunguiculatus, female (6.4 × 4.6 mm) (ZRC 2016.0121), Easter Island.

Fig. 6. Right maxilliped 3 (A–F); right major chela (G, H). A, G, Tetralia cinctipes, male (9.5 × 9.5 mm) (ZRC 2019.0701), Japan; B, Trapezia cymodoce, male (11.6 × 9.9 mm) (ZRC 1999.2385), Singapore; C, Quadrella maculosa, male (7.2 × 6.1 mm) (ZRC 2003.0352), Sulawesi, Indonesia; D, Sphenomerides trapezioides, male (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar; E, Calocarcinus africanus, male (9.3 × 7.2 mm) (ZRC 2008.1281), New Caledonia; F, Domecia acanthophora, male (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; H, Tetraloides heterodactylus, male (7.6 × 7.1 mm) (ZRC 2019.0699), Japan.

Fig.7. Male anterior thoracic sternum and pleon.A,Tetralia cinctipes (9.5 × 9.5 mm) (ZRC 2019.0701), Japan; B, Tetraloides heterodactylus (7.6 × 7.1 mm) (ZRC 2019.0699), Japan; C, Trapezia cymodoce (11.6 × 9.9 mm) (ZRC 1999.2385), Singapore; D, Quadrella maculosa (7.2 × 6.1 mm) (ZRC 2003.0352), Sulawesi, Indonesia; E, Sphenomerides trapezioides (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar; F, Calocarcinus africanus (9.3 × 7.2 mm) (ZRC 2008.1281), New Caledonia; G, Philippicarcinus oviformis (16.0 × 11.3 mm) (ZRC 2009.0058), Philippines; H, Domecia acanthophora (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; I, Cherusius triunguiculatus (4.7 × 3.9 mm) (ZRC 2016.0121), Easter Island.

Fig. 8. Posterior part of male thoracic sternum and pleon (A–F); sternopleonal cavity showing tubercle of pleonal-locking mechanism on sternite 5 (G–L). A, G, Tetralia cinctipes, male (9.5 × 9.5 mm) (ZRC 2019.0701), Japan; B, Trapezia cymodoce (11.6 × 9.9 mm) (ZRC 1999.2385), Singapore; C, I, Quadrella maculosa (7.2 × 6.1 mm) (ZRC 2003.0352), Sulawesi, Indonesia; D, J, Sphenomerides trapezioides (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar; E, Calocarcinus africanus (9.3 × 7.2 mm) (ZRC 2008.1281), New Caledonia; F, L. Domecia acanthophora (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; H, Tetraloides heterodactylus (7.6 × 7.1 mm) (ZRC 2019.0699), Japan; K, Calocarcinus africanus (12.6 × 9.3 mm) (ZRC 2008.1281), New Caledonia.

Fig. 9. Left G1 and G2, pleonal view. A, B, Tetralia cinctipes (9.5 × 9.5 mm) (ZRC 2019.0701), Japan; C, D, Tetraloides heterodactylus (7.6 × 7.1 mm) (ZRC 2019.0699), Japan; E, F,Trapezia cymodoce (11.6 × 9.9 mm) (ZRC 1999.2385), Singapore; G, H, Quadrella maculosa (7.2 × 6.1 mm) (ZRC 2003.0352), Sulawesi, Indonesia; I, J, Sphenomerides trapezioides (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar; K, L, Calocarcinus africanus (12.6 × 9.3 mm) (ZRC 2008.1281), New Caledonia; M, N, Philippicarcinus oviformis (16.0 × 11.3 mm) (ZRC 2009.0058), Philippines; O, P, Domecia acanthophora (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; Q, R, Cherusius triunguiculatus (4.7 × 3.9 mm) (ZRC 2016.0121), Easter Island. A, C, E, G, I, K, M, O, Q, left G1; B, D, F, H, J, L, N, P, R, left G2.

Fig. 10. Vulvae. A, Tetralia nigrolineata (9.8 × 8.6 mm) (ZRC 2019.0701), Japan; B, Tetraloides heterodactylus (8.3 × 6.7 mm) (ZRC 2019.0699), Japan; C, Trapezia cymodoce (12.2 × 10.1 mm) (ZRC 2007.0079), Singapore; D, Quadrella maculosa (5.9 × 5.0 mm) (ZRC 2003.0352), Sulawesi, Indonesia; E, Sphenomerides trapezioides (7.5 × 5.7 mm) (ZRC 2000.2103), Madagascar; F, Calocarcinus africanus (12.0 × 10.1 mm) (ZRC 2008.1281), New Caledonia; G, Philippicarcinus oviformis (14.5 × 10.0 mm) (ZRC 2009.0058), Philippines; H, Domecia acanthophora (7.4 × 5.4 mm) (ZRC 2000.1551), Caribbean Sea, Panama; I, Cherusius triunguiculatus (6.4 × 4.6 mm) (ZRC 2016.0121), Easter Island; J, Palmyria palmyrensis (4.9 × 3.4 mm) (UF 12897), Réunion.

Fig. 12.Sphenomerides trapezioides, male (7.8 × 5.9 mm) (ZRC 2000.2103), Madagascar.A, Dorsal habitus; B, frontal view of cephalothorax; C, dorsal view of carapace; D, male pleonal somites 3–6 (ventral view) showing fusion between somites 3–5; E, left P4 dactylus and propodus; F, comb-like setal rows on left P4 dactylus.