stomatopods, Latreille, 1817

Ahyong, Shane T., 2022, Stomatopod Crustacea of Lord Howe Island, Zootaxa 5194 (1), pp. 144-150 : 149

Key to stomatopods from Lord Howe Island

1. Raptorial claw dactylus outer margin forming large, inflated, heel; occlusal margin unarmed.......................... 2

- Raptorial claw dactylus outer margin without inflated heel; occlusal margin with 3 or more slender teeth................ 5

2. Abdominal somite 6 and telson immovably fused. Telson dorsal surface covered with short setae, usually laden with detritus obscuring surface. Rostral plate sharply trispinous............................... Chorisquilla tweediei ( Serène, 1950)

- Abdominal somite 6 and telson articulating. Telson dorsal surface without setae. Rostral plate with subtrapezoid basal portion and slender median spine............................................................................... 3

3. Telson with 5 mid-dorsal carinae, each with small posterior spine. Ocular scales rounded, narrower than base of rostral spine.................................................................... Gonodactylaceus falcatus ( Forskål, 1775)

- Telson with 3 mid-dorsal carinae, each unarmed. Ocular scales subquadrate, wider than base of rostral spine............. 4

4. Telson lateral primary teeth present, indicated by short notch in lateral margin..... Gonodactylus chiragra ( Fabricius, 1781)

- Telson lateral primary teeth absent, without notch in lateral margin........... Gonodactylus platysoma Wood-Mason, 1895

5. Rostral plate anterior margin rounded or obtusely angular, unarmed. Raptorial claw dactylus with 3 teeth...................................................................................... Pseudosquilla ciliata ( Fabricius, 1787)

- Rostral plate anterior margin with slender median spine. Raptorial claw dactylus with 9 teeth..................................................................................................... Acaenosquilla keablei sp. nov.