Genus: Leptocylindrus | Diatom

Order: Biddulphiales
Family: Leptocylindraceae

Click on the illustration to enlarge

Description: Tight chains with abutting valve surfaces.  Forms resting spores.

Cell Size: Diameter (apical axis) = 5-16um

Distribution: Cosmopolitan

Monterey Bay Species: L. danicus, L.  mediterraneus,  L. minimus.

Interesting Fact: L. mediterraneus is nearly always found with epiphyticy flagellates, Solenicola setigera.