Varieties of Salpingacantha from a 2016 sample in the Chukchi Sea (2016 St 29).

Varieties of Salpingacantha from a 2016 sample in the Chukchi Sea (2016 St 29). In the sample no typical Salpingella acuminata were found. In the conspectus of Kofoid & Campbell (1929) the form "a" most closely resembles S. ampla, "b" S. unguiculata, "c" S. simplex, "d" S. perca, and "e" S. crenulata. Note that form "c" if rotated 45° could easily be mistaken for Salpingella acuminata.