| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Spadella angulata Tokioka, 1951 |
Northwest Pacific | 0.6 | |
| Spadella antarctica Casanova, 1991 |
Antarctic Atlantic | 0.6 | |
| Spadella birostrata Casanova, 1987 |
Northeast Atlantic and the Mediterranean | 0.8 | |
| Spadella boucheri Casanova & Perez, 2000 |
Northwest Pacific | 0.13 | |
| Spadella bradshawi Bieri, 1974 |
Eastern Central Pacific | 0.65 | |
| Spadella cephaloptera (Busch, 1851) |
Circumglobal between 40°N and 40°S | 0.55 | |
| Spadella duverti Hernández, De Vera & Casanova, 2009 |
Eastern Central Atlantic | 0.45 | |
| Spadella equidentata Casanova, 1987 |
Northeast Atlantic | 0.7 | |
| Spadella gaetanoi Alvariño, 1978 |
Eastern Central Pacific | 0.3 | |
| Spadella interstitialis Kapp & Giere, 2005 |
Mediterranean Sea | 0.18 | |
| Spadella japonica Casanova, 1993 |
Northwest Pacific | 0.4 | |
| Spadella kappae Schmidt-Rhaesa & Vieler, 2020 |
Northeastern Atlantic | 0.35 | |
| Spadella lainezi Casanova, Hernández & Jiménez, 2006 |
Eastern Central Atlantic | 0.45 | |
| Spadella ledoyeri Casanova, 1986 |
Mediterranean Sea | 0.66 | |
| Spadella moretonensis Johnson & Taylor, 1920 |
Western Central Pacific | 0.4 | |
| Spadella nunezi Casanova & Moreau, 2004 |
Eastern Central Atlantic | 0.23 | |
| Spadella valsalinae Winkelmann, Gasmi, Gretschel, Müller & Perez, 2013 |
Mediterranean Sea | 0.5 | |
| Spadella xcalakensis Tovar & Suárez-Morales, 2007 |
Western Central Atlantic | 0.37 |