Varieties of Salpingacantha from a 2015 sample in the Chukchi Sea (2015 St 5).

Varieties of Salpingacantha from a 2015 sample in the Chukchi Sea (2015 St 5). In the sample, typical Salpingella acuminata ("a") were dominant with 70 cells found for the 15 Salpingacantha cells encountered. The "b" most closely corresponds with S. crenulata, "c" and "d" with S. perca, "e" with S. unguiculata and "f" with S. ampla. Note that form "e", if rotated 45°, could easily be mistaken for Salpingella acuminata.