• (1) Caecitellus parvulus - Chaetoceros hiemale
• (2) Chaetoceros hispidum - Chrysopyxis cyathus
• (3) Chrysopyxis globosa - Coscinodiscus debilis
• (4) Coscinodiscus decipiens - Cyclolithus gronosus
• (5) Cyclolithus robustus - Cystopus sphaericus
• (6) Cystopus spinulosus - Cystosphaera jacquinotii