Character;"A. inkenae sp. nov.";"A. affinis";"A. annectens";"A. atlantica";"A. australis";"A. charlottae";"A. comorensis";"A. grevei";"A. pacifica";"A. p. margo";"A. roroi";"A. septemdentata";"A. spinigera";"A. takahashiae" "Pereonites 1–4 mid-dorsal projections";"small, rounded on 3 & 4";"strong, acute on 1–4";"small, rounded on 2–4";absent;"keeled on 1–4";"keeled on 2–4";"small, rounded on 2–4";absent;"small, rounded on 2–4";"small, rounded on 2–4";absent;absent;"strong, acute on 1–4";absent "Pereonites 5–7 mid-dorsal projections";"small, rounded, increasing in size on 5–7";"strong, acute on 5–7";"medium, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"medium, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"strong, acute, increasing in size on 5–7";"absent but trace of keel on 6–7";"strong, acute, increasing in size on 5–7";"strong, acute on 5–7";"rounded hump on 5, acute on 6–7" "Pleonites 1–3 mid-dorsal projections";"1–2 small, rounded, 3 reduced to dorsal hump";"strong, acute on 1–2, 3 small";"medium, acute, 1–3, smaller on 3";"strong, acute on 1–3";"strong, acute on 1–3";"strong, acute on 1–2, slightly smaller on 3";"medium acute on 1–2 , 3 with tiny upright process";"medium, acute, 1–3, decreasing";"strong, acute on 1–2, smaller on 3";"strong, acute on 1–2, smaller on 3";"1–2 short, acute, 3 small upright process";"strong, acute on 1–3";"strong, acute on 1–3";"strong, acute on 1–2, smaller on 3" "Urosomite 1 mid-dorsal projection";absent;unknown;absent;absent;absent;absent;absent;absent;absent;absent;absent;present;present;absent "Gnathopod posterodistal basis lobe";"developed on G2 only";unknown;absent;"well-developed on G1 and G2";"developed on G2 only";"developed on G1 and G2";"developed on G2 only";"slightly developed on G2 only";well-developed;well-developed;small;small;small;small "Mandible palp article 3: article 2 length";1.4;unknown;1.2;unknown;1.5;1.1;1.4;unknown;1.4;1.4;1;1.5;0.9;0.9 Telson;cleft;emarginate;entire;emarginate;emarginate;entire;cleft;emarginate;emarginate;emarginate;emarginate;entire;emarginate;"emarginate (with dorsal keel)" "Antenna 1 Accessory Flagellum";"uniarticulate, ordinary";"uniarticulate, ordinary";"uniarticulate, ordinary";"uniarticulate, spine-like, straight";"uniarticulate, spine-like, curved";"uniarticulate, ordinary";"uniarticulate, spine-like";"uniarticulate, ordinary";"uniarticulate, spine-like, straight";"uniarticulate, spine-like, straight";"uniarticulate, ordinary";"uniarticulate, spine-like, straight";"bi-articulate, ordinary";uniarticulate