SEM images of spicules

Descrição:

A, the centre part of choanosomal pentactin; B–C, atrial pinular pentactin; D, dermal pinular pentactin; E–F, choanosomal pinular pentactin; G, pinular hexactin; H, stauractin; I, spiny microdiactin; J, smooth middle shaft of marginalia; K, details of the middle shaft of mesouncinate; L, details of the middle shaft of macrouncinate; M, micramphidisc.