FIGURE 3 in Morphological distinction of the Ophioderma Müller & Troschel, 1840 species (Echinodermata: Ophiuroidea: Ophiacanthida: Ophiodermatidae) from the Algerian west coast

FIGURE 3. Morphological variation of the dorsal arm plates distal edge of Ophioderma species. Letters refer to the description in Table 2. The black arrows show dark spots. The white arrows show white spots. The red arrows show the white spots surrounded by dark. Scale bare = 0.5 mm.