FIGURE 5 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 5. SEM photographs of internal skeletal characters of Amphipholizona perplexa (Nielsen, 1932) new comb. (A) External view of lateral arm plate, detail of the ornamentation; (B) Internal view of lateral arm plate; (C) Distal view of lateral arm plate, detail of spine articulation; (D) Arm spines; (E) Base of arm spine showing articulation, detail of the minute thorns; (F) Dorsal arm plate; (G) Ventral arm plate; (H) Distal view of vertebra; (I) Proximal view of vertebra; (J) Ventral view of vertebra; (L) Lateral view of vertebra. MO: muscle opening; NO: nerve opening.