Amphioplus longirima sp. nov.

Fig. 8.—Aboral view. Fig, 9.—Adoral view. Fig, 10.—Lateral view of arm-segment. All to scale shown.

Abbreviations: A, adoral plate. D, upper arm-plate. DC, dorso-central primary plate of disc G, genital cleft. L, lateral arm-plate. O, oral shield. S, radial shield. V, lower arm-plate.