Character;"This study";"Zhang et al. (2020)" "Northern Gulf of Thailand, southern South China Sea";"China, northern South China Sea" "Males n = 2";"Female n = 1";Holotype;Paratypes male;males;females "n = 1";"n = 11";"n = 5" ;[mm] "Standard length (SL)";49.7–56.9;45.5;61.7;47.1–57.8;53.8–62.3 "Precaudal length (PCL)";53.8–61.4;46.8;67.4;52.3–64.4;55.0–62.9 ;"[% of SL]" "Carapace length";47.5–49.3;53.9;47.1;48.6–53.2;51.4–54.5 "Tail length";48.5–51.7;48.9;49.8;46.7–52.8;45.1–49.8 "Prepectoral width";40.9–41.4;44.8;40.8;40.3–46.0;44.4–47.5 "Interpectoral width";29.7–30.3;35.7;29.0;29.7–34.9;34.0–36.3 "Carapace width";29.7–30.7;37.0;29.9;28.8–34.7;34.8–37.0 "Body depth";18.7–19.7;19.8;17.9;16.5–20.9;16.1–20.0 "Rostrum length";14.0–15.7;6.9;13.8;13.9–17.4;4.8–6.3 "Rostrum width at tip";4.9–5.0;1.6;4.8;3.0–4.3;1.0–1.6 "Orbit length";8.9–10.2;10.1;8.9;9.2–11.3;9.7–10.8 "Interorbital width";9.5–11.2;10.7;9.7;9.1–11.2;8.7–10.7 "Head width";26.6–27.7;30.5;26.4;26.7–31.8;30.2–32.4 "Length of 5th pectoral ray";32.9–34.4;36.8;33.6;30.9–40.3;35.1–38.3 "Height from dorsal to anal fins";10.4–10.7;10.2;11.3;10.2–12.8;10.0–12.2 "Rostrum tip to pelvic fin length";50.9–51.2;45.8;49.6;49.5–53.6;41.2–46.6 "Rostrum tip to anal fin length";66.8–67.0;65.3;65.3;67.0–66.4;67.0–73.1 "Length from base of pectoral fin to pelvic fin";27.7–28.0;29.2;27.5;28.4–31.4;28.4–31.4