Expanding diversity in the mantis shrimps: two new genera from the eastern and western Pacific (Crustacea: Stomatopoda: Squillidae)

Squillidae is the largest family in the Stomatopoda, with 47 genera to date. Phylogenetic analyses have shown Squilla Fabricius, 1787 and Oratosquilla Manning, 1968 to be para- or polyphyletic. Two poorly documented species within these genera, Squilla parva Bigelow, 1891 (eastern Pacific) and Oratosquilla kempi (Schmitt, 1931) (western Pacific) are not closely related to the respective type species of the genera in which they are currently placed. We herein redescribe S. parva and O. kempi based on type and other material, and propose two new genera for their reception, increasing the number of squillid genera to 49.

Key words
Squilloidea; new genus; mantis shrimp; Indo-West Pacific; Atlanto-East Pacific

Authorship

Cara Van Der Wal

School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia.University of SydneyAustraliaSydney, AustraliaSchool of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia.

Australian Museum Research Institute, Australian Museum, 1 William St, Sydney, NSW 2010, AustraliaAustralian MuseumAustraliaSydney, AustraliaAustralian Museum Research Institute, Australian Museum, 1 William St, Sydney, NSW 2010, Australia

Shane T. Ahyong

School of Biological, Earth and Environmental Sciences, University of New South Wales, Kensington, NSW 2052, AustraliaUniversity of New South WalesAustraliaKensington, AustraliaSchool of Biological, Earth and Environmental Sciences, University of New South Wales, Kensington, NSW 2052, Australia

Corresponding author: Shane T. Ahyong, shane.ahyong@austmus.gov.au

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Figures

Figures (3)

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Figure 1
Michalisquillaparva (Bigelow, 1891Bigelow, R.P. 1891. Preliminary notes on some new species of Squilla. Johns Hopkins University Circulars, 10: 93-94.) n. comb., male, TL 51 mm, Panama, Canal Zone, 4 April 1973 (USNM 150744). A, anterior cephalothorax, dorsal. B, right antennular somite dorsal process, lateral. C, right eye. D, right posterolateral margin of carapace. E, mid-posterior margin of carapace. F, right raptorial claw, lateral. G, right maxilliped 5 ischium. H, right thoracic somites 5-8, dorsal. I, right thoracic somite 5, lateral view. J, thoracic somite 8 sternal keel, right lateral. K, abdominal somites 4-6, telson and right uropod, dorsal. L, right uropod, ventral. M, right male pleopod 1 endopod, anterior. Scale: A, B, D-I, K, L = 2 mm; C, J, M = 1 mm.

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Figure 2
Vossquilla kempi (Schmitt, 1929) n. comb. A-K: male, TL 56 mm, Pearl River estuary, Macau, 13 March 1993 (AM P99510). M-N: male, TL 112 mm, Kinmen, Taiwan Strait (AM P99511). A, anterior cephalothorax, dorsal. B, right dorsal process of antennular somite, lateral. C, right posterolateral margin of carapace. D, mid-posterior margin of carapace. E, left raptorial claw, lateral. F, right maxilliped 5 basis and ischium. G, right thoracic somites 5-8, lateral. H, right thoracic somite 5, lateral view. I, thoracic somite 8 sternal keel, right lateral. J, abdominal somites 4-6, telson and right uropod. dorsal. K, telson postanal keel, ventral. L, right uropod, ventral. M, right male pleopod 1 endopod, anterior. N, left raptorial claw, carpus dorsal carina, lateral view. Scale: A-H, J-N = 2 mm; I = 1 mm.

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Figure 3
A, Michalisquilla parva (Bigelow, 1891Bigelow, R.P. 1891. Preliminary notes on some new species of Squilla. Johns Hopkins University Circulars, 10: 93-94.) n. comb., male, TL 44 mm, Taboga Island, Panama (FLMNH UF 19464) (Photo: A. Anker). B, Vossquilla kempi (Schmitt, 1929) n. comb., male, TL 112 mm, Kinmen, Taiwan (AM P99511) (Photo: T.Y. Chan).

Figure 1 Michalisquillaparva (Bigelow, 1891Bigelow, R.P. 1891. Preliminary notes on some new species of Squilla. Johns Hopkins University Circulars, 10: 93-94.) n. comb., male, TL 51 mm, Panama, Canal Zone, 4 April 1973 (USNM 150744). A, anterior cephalothorax, dorsal. B, right antennular somite dorsal process, lateral. C, right eye. D, right posterolateral margin of carapace. E, mid-posterior margin of carapace. F, right raptorial claw, lateral. G, right maxilliped 5 ischium. H, right thoracic somites 5-8, dorsal. I, right thoracic somite 5, lateral view. J, thoracic somite 8 sternal keel, right lateral. K, abdominal somites 4-6, telson and right uropod, dorsal. L, right uropod, ventral. M, right male pleopod 1 endopod, anterior. Scale: A, B, D-I, K, L = 2 mm; C, J, M = 1 mm.

Figure 2 Vossquilla kempi (Schmitt, 1929) n. comb. A-K: male, TL 56 mm, Pearl River estuary, Macau, 13 March 1993 (AM P99510). M-N: male, TL 112 mm, Kinmen, Taiwan Strait (AM P99511). A, anterior cephalothorax, dorsal. B, right dorsal process of antennular somite, lateral. C, right posterolateral margin of carapace. D, mid-posterior margin of carapace. E, left raptorial claw, lateral. F, right maxilliped 5 basis and ischium. G, right thoracic somites 5-8, lateral. H, right thoracic somite 5, lateral view. I, thoracic somite 8 sternal keel, right lateral. J, abdominal somites 4-6, telson and right uropod. dorsal. K, telson postanal keel, ventral. L, right uropod, ventral. M, right male pleopod 1 endopod, anterior. N, left raptorial claw, carpus dorsal carina, lateral view. Scale: A-H, J-N = 2 mm; I = 1 mm.

Figure 3 A, Michalisquilla parva (Bigelow, 1891Bigelow, R.P. 1891. Preliminary notes on some new species of Squilla. Johns Hopkins University Circulars, 10: 93-94.) n. comb., male, TL 44 mm, Taboga Island, Panama (FLMNH UF 19464) (Photo: A. Anker). B, Vossquilla kempi (Schmitt, 1929) n. comb., male, TL 112 mm, Kinmen, Taiwan (AM P99511) (Photo: T.Y. Chan).

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Expanding diversity in the mantis shrimps: two new genera from the eastern and western Pacific (Crustacea: Stomatopoda: Squillidae)

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[1] Corresponding author: Shane T. Ahyong, shane.ahyong@austmus.gov.au