Figure 1.
Map of the study area indicating the sites of sample collection in the Indian EEZ.
Figure 2.
A-C, Sphaerodromia kendalli (Alcock and Anderson, 1894Alcock, A. and Anderson, A.R.S. 1894. An account of a recent collection of deep-sea Crustacea from the Bay of Bengal and Laccadive Sea. Natural history notes from H.M. Royal Indian Marine Survey Steamer “Investigator”, commander C.F. Oldham, R.N., commanding. ― Series II, No. 14. Journal of the Asiatic Society of Bengal, 63: 141-185, pl. 9.), male (CL 38.6 mm, CW 45.4 mm) (IO/SS/BRC/00294), southwest Bay of Bengal, India. D, E, Sphaerodromia nux Alcock, 1899, male (CL 29.3 mm, CW 33.1 mm) (IO/SS/BRC/00295), Bay of Bengal west of South Andaman Island, India. A, D, dorsal habitus; B, E, denuded dorsal carapace; C, denuded lateral carapace. Scale bars: 10 mm.
Figure 3.
Sphaerodromia kendalli (Alcock and Anderson, 1894Alcock, A. and Anderson, A.R.S. 1894. An account of a recent collection of deep-sea Crustacea from the Bay of Bengal and Laccadive Sea. Natural history notes from H.M. Royal Indian Marine Survey Steamer “Investigator”, commander C.F. Oldham, R.N., commanding. ― Series II, No. 14. Journal of the Asiatic Society of Bengal, 63: 141-185, pl. 9.). A-N, P, male (CL 38.6 mm, CW 45.4 mm) (IO/SS/BRC/00294), southwest Bay of Bengal, India. A, Antennule, ventral view; B, antenna, ventral view; C, third maxilliped, ventral view; D, cheliped epipod and arthrobranch, lateral view; E, right chela and carpus, outer view; F, G, P2-P3 dactyli, dorsal view; H, I, P4-P5 subchela, dorsal view; J, thoracic sternum in ventral view indicating the position of the gonopods; K, L, G1 dorsal and ventral views; M, N, G2 dorsal and ventral views; P, male telson, ventral view. O, male (CL 43.1 mm, CW 48.6 mm) (IO/SS/BRC/00294), southwest Bay of Bengal, India, posterior pleonal somites 3-5 and telson in dorsal view indicating the form and position of vestigial pleopods. Scale bars: E-G, J = 10 mm, A-C, K-N, P = 5 mm, D, O = 2 mm, H-I = 1 mm.
Figure 4.
Sphaerodromia nuxAlcock, 1899Alcock, A. and Anderson, A.R.S. 1899. Natural history notes from H.M. Royal Indian Marine Survey Ship ‘Investigator,’ Commander T.H. Heming, R.N., commanding. ― Series III, no. 2. An account of the deep-sea Crustacea dredged during the surveying-season of 1897-98. The Annals and Magazine of Natural History including Zoology, Botany, and Geology, series 7, 3: 1-27., male (CL 29.3 mm, CW 33.1 mm) (IO/SS/BRC/00295), Bay of Bengal west of South Andaman Island, India. A, Antennule and antenna; B, third maxilliped; C, right chela and carpus, outer view; D, P2 merus, dorsal view; E, P2 dactylus, dorsal view; F, P2-P3 meri, ventral view; G, P3 dactylus, dorsal view; H, I, P4-P5 subchela, dorsal view; J, posterior pleonal somites and telson, ventral view; K, pleonal somites 3-5 and telson in dorsal view indicating the form and position of vestigial pleopods; L, M, G1 dorsal and ventral views; N, O, G2 dorsal and ventral views. Scale bars: B-C = 5 mm, A, D-O = 2 mm.
Figure 5.
Intesius brevipes sp. nov., holotype, female (CL 34.5 mm, CW 42.2 mm) (IO/SS/BRC/00296), Bay of Bengal west of Rutland Island, Andamans, India. A, Dorsal habitus; B, dorsal carapace, anterior portion; C, anterior frontal view indicating the position of antennules, antennae, and third maxilliped; D, right chela and carpus, outer view; E, left chela and carpus, outer view; F, thoracic sternum in ventral view indicating position of gonopores; G, pleon and telson, ventral view; H, gonopores, enlarged view. Scale bars: A-G = 10 mm, H = 5 mm.
Figure 6.
Tunepugettia corbariae B.Y. Lee, Richer de Forges and P.K.L. Ng, 2019Ng, P.K.L.; Padate, V.P. and Saravanane, N. 2019. Gordonopsis robusta, a new species of deep-sea porter crab (Crustacea: Brachyura: Homolidae) from the Andaman Sea, India. Raffles Bulletin of Zoology, 67: 510-516., female (PCL 26.9 mm, CW 20.8 mm) (IO/SS/BRC/00297), Andaman Sea off Middle Andaman Island, India. A, Dorsal habitus; B, C, carapace dorsal and lateral views, respectively; D, ventral view indicating the position of antennules, antennae, and third maxilliped; E, gonopores and pleonal locking mechanism, enlarged; F, pleon and telson, ventral view. Scale bars: A-C = 10 mm; D-F = 2 mm.
Figure 7.
Cyrtomaia suhmii Miers, 1885, male (PCL 67.1 mm, CW 78.5 mm) (IO/SS/BRC/00298), Bay of Bengal off Great Nicobar Island, India. A, Dorsal habitus; B, ventral view indicating the position of antennules, antennae and third maxilliped; C, thoracic sternum in ventral view indicating G1 position; D, pleon and telson, ventral view; E, right G1, sub-ventral view. Scale bars: A-B = 50 mm, C-D = 10 mm, E = 1 mm.
Figure 8.
Chaceon alcockiGhosh and Manning, 1993Ghosh, H.C. and Manning, R.B. 1993. A new deep-sea crab of the genus Chaceon from India (Crustacea: Decapoda: Geryonidae). Proceedings of the Biological Society of Washington, 106: 714-718., male (CL 146.4 mm, CW 161.1 mm) (IO/SS/BRC/00300), southeast Arabian Sea off Alleppey (Kerala), India. A, Dorsal habitus; B, ventral view indicating the position of antennules, antennae and third maxilliped; C, right chela and carpus, outer view; D, left chela and carpus, outer view; E, P5 merus, dorsal view; F, P5 carpus and propodus, dorsal view; G, H, P5 dactylus, dorsal and lateral views; I, pleon and telson, ventral view; J, right G1and G2 in situ, ventral view; K, L, right G1 distal portion, ventral and dorsal views. Scale bars: A = 50 mm, B-F, J = 10 mm, G-I = 20 mm, K-L = 2 mm.
Figure 9.
Sphenomerides trapezioides (Wood-Mason, 1891Wood-Mason, J. and Alcock, A. 1891. Natural History Notes from H.M. Indian Marine Survey Steamer ‘Investigator,’ Commander R. F. Hoskyn, R. N., commanding. - No. 21. Note on the results of the last season’s deep-sea dredging. The Annals and Magazine of Natural History, including Zoology, Botany, and Geology, series 6, 7: 258-272.), female (CL 6.9 mm, CW 9.4 mm) (IO/SS/BRC/00299), Bay of Bengal off Great Nicobar Island, India. A, Dorsal habitus; B, ventral view indicating the position of antennules, antennae and third maxilliped; C, pleon and telson, ventral view; D, gonopores, enlarged view. Scale bars: A = 5 mm, B-D = 1 mm.
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
