Table 3 in Discovery of a new species and host record of Holophryxus Richardson, 1905 (Isopoda: Dajidae) from the central Arctic: a model of enhanced descriptive standards for epicaridean isopods

Table 3. Salient female morphological characters of valid Holophryxus species, including (1) cephalon type, (2) shape of body (in dorsal aspect), anterior margin of dorsal prominence, and pleon, (3) presence/absence of slit-like pores on ventral cephalic ridge, maxillipeds (Mxp), posteriorly directed appendices on the median sternal plate, and ventrolateral papillae near posterior margin of fifth incubatory plate, (4) expression and form of coxal plates of pereopods 1–5, and (5) length:width ratio of ventral cephalic ridge (as measured in Fig. 15A). Species are arranged in chronological order
SpeciesBody shapeCephalonSlit-likeDorsalVentralCoxalMxpSternal plateExpressedpereonpleon shapeporesprominencecephalic ridge plates P1appendicescoxal platespapillaeL/WHo. alaskensisOblong-ovateType 3–Bilobed~ 0.35Lobate++?2–5+broadly conicalRoundedHo. giardiSpindle shapedType 2–Bilobed~ 0.30Pointed??2–5?broadlySpinousroundedHo. richardiSpindle shapedType 3–Bilobed~ 0.45Pointed++2–5+broadly conicalPointedHo. acanthephyraeOblong-ovateType 3+Bilobed~ 0.30Lobate++2–5–roundedRoundedHo. fusiformisSpindle shapedType 3–Bilobed~ 0.40Pointed+–2–5+terminalPointedprocessHo. polyandrusSpindle shapedType 3–Bilobed~ 0.40Pointed??2–4+conicalSpinousHo. quadratahumeraleElongateType 2–Rounded~ 0.30Pointed??2–5–broadlySpinousroundedHo. citriformisCitriformType 1–Slightly0.70Lobate––2–4–roundedroundedRounded