Type species: Mucronella tricuspis Hincks, 1881
This genus includes the species:
| Exochella abigailae | Gordon & Taylor, 2015 | Paleogene Eocene Ypresian | New Zealand Chatham Islands |
| Exochella areolata | Okada & Mawatari, 1937 | Recent | Japan |
| Exochella armata | (Hincks, 1882) | Recent | New Zealand |
| Exochella avicularis | Hayward, 1991 | Recent | Antarctica, S. Atlantic |
| Exochella conjuncta | Brown, 1952 | Recent Pleistocene |
New Zealand, Australia New Zealand |
| Exochella discors | Hayward, 1991 | Recent | S. Atlantic |
| Exochella dubia | Livingstone, 1929 | Recent | New Zealand |
| Exochella eleanorae | (Brydone, 1936) | Cretaceous | Europe |
| Exochella elegans | Hayward, 1991 | Recent | S. Shetland I. |
| Exochella frigidula | Winston, Vieira & Woollacott, 2014 | Recent | Southwest Atlantic Brazil |
| Exochella? gracilis | Gordon & Taylor, 1999 | Paleocene | Chatham I., NZ |
| Exochella grandis | Canu & Bassler, 1935 | Tertiary | SE Australia |
| Exochella hymanae | (Rogick, 1956) | Recent | Antarctica |
| Exochella jellyae | Brown, 1952 | Tertiary | New Zealand |
| Exochella jullieni | Gordon, 1989 | Recent | New Zealand |
| Exochella levinseni | Gordon, 1989 | Recent | New Zealand |
| Exochella? labiosa | (Reuss, 1869) | Tertiary | Europe |
| Exochella linearis | Gordon & Taylor, 2015 | Paleogene Eocene Ypresian | New Zealand Chatham Islands |
| Exochella longirostris | Jullien, 1888 | Recent | W. Atlantic Cape Horn to Gulf of Mexico |
| Exochella longirostris quadricella | Sakakura, 1935 | Pleistocene | Japan |
| Exochella lobata | Levinsen, 1909 | Recent | Australia |
| Exochella marionae | Hayward, 1991 | Recent | Marion I., Prince Edward Is. |
| Exochella moyanoi | Ramalho & Calliari, 2015 | Recent | West Atlantic Brazil Rio Grande do Sul |
| Exochella munita | (MacGillivray, 1883) | Recent | Australia |
| Exochella najdini | Voigt, 1962 | Cretaceous | Russia |
| Exochella quadrispinosa | De Blauwe & Gordon, 2014 | Recent | Antarctic - Weddell Sea |
| Exochella reidae | Gordon & Taylor, 2015 | Paleogene Eocene Ypresian | New Zealand Chatham Islands |
| Exochella rogickae | Hayward, 1991 | Recent | Antarctica |
| Exochella rossi | Hayward, 1991 | Recent | Antarctica |
| Exochella septentrionalis | Canu & Bassler, 1933 | Cretaceous | USA |
| Exochella tricuspis | (Hincks, 1881) | Recent | Australia |
| Exochella tropica | Winston & Woollacott, 2009 | Recent | West Atlantic - Barbados |
| Exochella umbonata | Hayward, 1991 | Recent | S. Shetland I. |
| Exochella woodae | Gordon & Taylor, 2015 | Paleogene Eocene Ypresian | New Zealand Chatham Islands |
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| Exochella tricuspis |
Harmer notebook - entry for Exochella
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