Figure 1.A–D Radiolucina amianta (SBMNH 357639, USA, Florida, Santa Petersburg, Tampa Bay) length = 5.4 mm A Exterior of right valve B Exterior of left valve C Interior of left valve D Interior of right valve E Close up of hinge of left valve F Close up of anterior adductor muscle scar of left valve G Close up of ribs of right valve H Close up of pallial line of left valve. E–H scale bar = 1 mm.
Figure 4.A–D Phacoides (Bellucina) amiantus Dall, 1901lectotype herein(USNM 64276, Mexico, Yucatan Strait) length = 6 mm A Exterior of right valve B Interior of right valve C Close up of ribs of right valve D Close up of hinge of right valve.
Figure 5.Outline drawings of interior of right valves A Phacoides (Bellucina) amiantus lectotype B Radiolucina cancellaris neotype C Radiolucina jessicae new species holotype – Not to scale.