15.Genus: Asteromphalus | Diatom

15.Genus: Asteromphalus | Diatom

                                                                          Asteromphalus

Order: Asterolamprales

Family: Choreutoidea

Looks like: Sea biscuit, sand dollar

Description: Centric diatom, valuve outline broadly oval or circular, or oblong. One hyaline ray narrower than the others (for A. hookeri). Narrow ray is either rectangular or bell shaped, and sectors are wedge shaped and curve towards valve center.

Cell size: Diameter 42-175um

Distribution: Warm , temperate and southern cold water regions.

Last modified: Wednesday, 27 June 2012, 7:08 AM