Fig. 7
L. joymaciae n. sp., valvocopula (a–e) and 4th pleura (f–h) in SEM. a Closed end of valvocopula with narrow septum, midrib/septum on abvalvar side. b Band appears symmetrical as midrib swings gradually. c–e Advalvar striae peter out as midrib moves completely to advalvar side. f–h The 4th pleura showing apical cap and portion of band with single row of pores that runs throughout the whole band. Scale bars: a, 10 μm, b–e, 5 μm, f–h 2.5 μm