Fig. 5 in A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence

Fig. 5. Ophiopsila cf. polyacantha (NSMT E-13189), SEM photographs of vertebrae from proximal (A–E) and middle (F, G) portions of arms. A, F, distal views; B, G, proximal views; C, ventral view; D, dorsal view; E, lateral view. Arrowheads indicate orientation: do, dorsal side; dis, distal side; pro, proximal side; v, ventral side. Abbreviations: DF, dorsal muscle flange; DT, depression for tentacle; LaS, lateral saddle; LoF, longitudinal furrow; TrF, transverse furrow; VF, ventral muscle flange. Scale bars=100 µm.