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Fig. 8 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 8. Macrobrachium rosenbergii: A, B, 2 adult males from Ajkwa R., Papua, Indonesia, not preserved; C, 2 ovigerous females from Dinas, the Philippines, not preserved.

Fig. 7 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 7. Abdomen: A, Macrobrachium rosenbergii (male 75.0 mm CL, Ajkwa R., Papua, Indonesia, not preserved); B, Macrobrachium dacqueti (male 62.80 mm CL, Mahakam R., Melak, E. Kalimantan, Indonesia).

Fig. 5 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 5. Carapace: A, Macrobrachium rosenbergii (male 75.0 mm CL, Ajkwa R., Papua, Indonesia, not preserved); B–C, M. dacqueti: B, adult (male 62.60 mm CL, Jaya R., Bukit Sarang area, Bintulu, Sarawak, East Malaysia, Borneo, coll. H. H. Tan (ZRC), 20 Aug.2005; C, young specimen from Serian, Sarawak, East Malaysia, Borneo, not preserved.

Fig. 9 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 9. Macrobrachium dacqueti: A, male 62.60 mm CL, Jaya R., Bukit Sarang area, Bintulu, Sarawak, East Malaysia, Borneo, coll. H. H. Tan (ZRC), 20 Aug.2005; B, male 88.90 mm CL, Lake Semayang, E. Kalimantan, Indonesia, coll. D. Wowor & H. H. Tan (MZB), Nov.1999; C, male 62.80 mm CL, Mahakam R., Melak, E. Kalimantan, Indonesia); D, 2 males, from aquaculture, Philippines, originating from Thailand, not preserved.

Fig. 6 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 6. Young individuals: A–B, Macrobrachium rosenbergii: A, 45.0 mm CL, Tambulig, Panguil Bay, Mindanao, Philippines, not preserved; B, Ajkwa R., Papua, Indonesia, not preserved; C, M. dacqueti, Serian, Sarawak, East Malaysia, Borneo, not preserved.

Fig. 4 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 4. Macrobrachium dacqueti (Sunier, 1925): A, ovigerous female 41.90 mm CL, lateral view (ZRC 2000.2408); B, male 64.15 mm CL, close up, carpus of second pereiopod (SAM C 11228).

Fig. 3 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 3. Macrobrachium rosenbergii (de Man, 1879): A, ovigerous female 39.10 mm CL, lateral view (MZB); B, male 83.30 mm CL, close up, carpus of second pereiopod (QM W 16487).

Fig. 1 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 1. Scatterplot of MDA scores (first root) for the two supposed subspecies, adults only. Symbols: Macrobrachium rosenbergii rosenbergii females (filled circle), M. r. rosenbergii males (empty circle), M. r. dacqueti females (filled square) and M. r. dacqueti males (empty square). Eigenvalue = 28.709; Wilks's λ = 0.034; χ2 = 200.095, df = 8, p <0.0001.

Fig. 2 in The Giant Freshwater Prawns Of The Macrobrachium Rosenbergii Species Group (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 2. Scatterplot of MDA scores (first root) for the two supposed subspecies, males only. Symbols: Macrobrachium rosenbergii rosenbergii adult males (filled circle), M. r. rosenbergii young males (empty circle), M. r. dacqueti adult males (filled square) and M. r. dacqueti young males (empty square). Eigenvalue = 6.587; Wilks's λ = 0.132; χ2 = 267.485, df = 8, p <0.0001.

Fig. 14. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 14. Macrobrachium xmas n. sp., coloration of live specimens. A, paratype ovigerous female (pocl 21.66 mm) (ZRC 2015.281), Whip Cave; B, C, paratype ovigerous female (pocl 20.20 mm) (QM-W28316), Freshwater Cave (Photographs by: HH Tan).

Fig. 12. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 12. Macrobrachium xmas n. sp., paratype ovigerous female (pocl 20.20 mm) (QM-W28316). A, rostrum, carapace, and cephalic appendages, lateral view; B, eye (left side), ventral view; C, right second pereiopod, lateral view; D, left second pereiopod, lateral view; E, same, basal part of fingers, dorsal view. Scale bars = 1.0 mm.

Fig. 11. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 11. Macrobrachium xmas n. sp., paratype ovigerous female (pocl 21.66 mm) (ZRC 2015.281). A, rostrum, carapace, and cephalic appendages, lateral view; B, eye (left side), ventral view (left), dorsal view (right); C, right second pereiopod, lateral view; D, left second pereiopod, lateral view. Scale bars = 1.0 mm.

Fig. 10. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 10. Macrobrachium xmas n. sp., paratype male (pocl 13.22 mm) (RUMF-ZC-2802). A, rostrum, carapace, and cephalic appendages, lateral view; B, eye (left side), ventral view (left), dorsal view (right); C, right second pereiopod, lateral view; D, left second pereiopod, lateral view. Scale bars = 1.0 mm.

Fig. 9. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 9. Macrobrachium xmas n. sp., paratype male (pocl 16.26 mm) (ZRC 2015.282). A, rostrum, carapace, and cephalic appendages, lateral view; B, eye (left side), ventral view (left), dorsal view (right); C, left second pereiopod, lateral view; D, same, basal part of fingers, dorsal view; E, right second pereiopod, lateral view. Scale bars = 1.0 mm.

Fig. 7. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 7. Macrobrachium xmas n. sp., holotype male (pocl 18.74 mm) (QM-W28315). Third to fifth pereiopods, lateral view. A, third pereiopod, lateral view; B, same, posterior part of propodus, lateral view; C, fourth pereiopod, lateral view; D, same, posterior part of propodus, lateral view; E, fifth pereiopod, lateral view; F, same, posterior part of propodus, lateral view. Scale bars = 1.0 mm.

Fig. 4. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 4. Macrobrachium xmas n. sp., holotype male (pocl 18.74 mm) (QM-W28315). A, rostrum and carapace, lateral view; B, tip of rostrum, lateral view; C, rostrum, anterior part of carapace and cephalic appendages, dorsal view; D, epistome, venral view; E, abdomen and telson, and left uropod, lateral view: F, posterior margin of sixth abdominal sternite and interuropodal sclerite, ventrolateral view; G, same, ventral view; H, telson, dorsal view; I, posterior margin of telson, dorsal view; J, eye (left side), ventral view (above), dorsal view (below). Scale bars = 1.0 mm.

Fig. 6. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 6. Macrobrachium xmas n. sp., holotype male (pocl 18.74 mm) (QM-W28315). Chelipeds. A, first pereiopod, lateral view; B, chela of first pereiopod, ventral view; C, right second pereiopod, lateral view; D, same, tip of dactylus, dorsal view; E, same, basal part of fingers, dorsal view; F, left second pereiopod, lateral view; G, same, tip of dactylus, dorsal view; H, same, tip of fixed finger, dorsal view; I, same, basal part of fingers, dorsal view. Scale bars = 1.0 mm.

Fig. 3 in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 3. Macrobrachium miyakoense Komai & Fujita, 2005, coloration of live specimens. A, adult male (RUMF-ZC-2665), dorsal view; B, same, lateral view; C, adult female (RUMF-ZC-2664), dorsal view; D, same, lateral view.

Fig. 5. Macrobrachium xmas n in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 5. Macrobrachium xmas n. sp., holotype male (pocl 18.74 mm) (QM-W28315). Left appendages. A, antennule, ventral view; B, antenna, ventral view; C, basal part of right antenna, ventral view; D, mandible, ventral view; E, maxillule, ventral view; F, maxilla, ventral view; G, first maxilliped, ventral view; H, second maxilliped, ventral view; I, third maxilliped, lateral view; J, endopod of first pleopod, ventral view; K, appendix interna and appendix masculine of second pleopod, mesial view. Scale bars = 1.0 mm.

Fig. 2 in A new stygobitic prawn of the genus Macrobrachium Spence Bate, 1864, from anchialine caves in Christmas Island, Indian Ocean; with a rediagnosis of M. miyakoense Komai & Fujita, 2005 (Crustacea: Decapoda: Caridea: Palaemonidae)

Fig. 2. Macrobrachium miyakoense Komai & Fujita, 2005, adult female (pocl 21.8 mm) from Miyako Island, Ryukyu Islands, Japan (RUMF-ZC-2664). A, rostrum, carapace, and cephalic appendages, lateral view; B, eye (left side), ventral view; C, left second pereiopod; D, right second pereiopod; E, same, basal part of fingers, dorsal view. Scale bars = 1.0 mm.