| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Microcosmus agglutinans Hartmeyer, 1919 |
Eastern Indian Ocean | ||
| Microcosmus anchylodeirus Traustedt, 1883 |
Western Central Atlantic | ||
| Microcosmus anomalocarpus Millar, 1988 |
Western Indian Ocean | ||
| Microcosmus arenaceus Sluiter, 1900 |
Indo-Pacific | ||
| Microcosmus australis Herdman, 1899 |
Indo-West Pacific | ||
| Microcosmus bitunicatus Monniot, & Monniot, 2001 |
Western Central Pacific | ||
| Microcosmus claudicans (Savigny, 1816) |
Eastern Indian Ocean, Atlantic and the Mediterranean | 4 | |
| Microcosmus curvus Tokioka, 1954 |
Pacific Ocean | 1.4 | |
| Microcosmus exasperatus Heller, 1878 |
Indo-West Pacific, Atlantic Ocean and the Mediterranean | 5.5 | |
| Microcosmus glacialis (Sars, 1859) |
Northeast Atlantic | ||
| Microcosmus helleri Herdman, 1881 |
Indo-West Pacific and Atlantic Ocean | ||
| Microcosmus hernius (Monniot & Monniot, 1974) |
Northeast Atlantic | ||
| Microcosmus hirsutus Sluiter, 1900 |
Southwest Pacific | ||
| Microcosmus longicloa Monniot & Monniot, 1991 |
Western Central Pacific | ||
| Microcosmus madagascariensis Michaelsen, 1918 |
Indian Ocean | 1.6 | |
| Microcosmus manaarensis Monniot & Monniot, 1996 |
Western Central Pacific | ||
| Microcosmus miniaceus Sluiter, 1905 |
Eastern Central Pacific | ||
| Microcosmus multiplicatus Tokioka, 1952 |
Western Central Pacific | ||
| Microcosmus nudistigma Monniot, 1962 |
Atlantic and the Mediterranean Sea | ||
| Microcosmus oligophyllus Heller, 1878 |
Southeast Atlantic and Western Indian Ocean | ||
| Microcosmus pacificus Monniot & Monniot, 2001 |
Western Central Pacific | ||
| Microcosmus pedunculatus Pérès, |
Eastern Central Atlantic | ||
| Microcosmus planus Kott, 1975 |
Eastern Indian Ocean | ||
| Microcosmus polymorphus Heller, 1877 |
Atlantic and the Mediterranean | 15 | |
| Microcosmus propinquus Herdman, 1882 |
Indo-West Pacific | ||
| Microcosmus psammiferus Monniot, 2001 |
Southeast Atlantic | ||
| Microcosmus pupa (Savigny, 1816) |
Indo-West Pacific and Northeast Atlantic | 3 | |
| Microcosmus sabatieri Roule, 1885 |
Atlantic and the Mediterranean Sea | ||
| Microcosmus santoensis Monniot & Monniot, 2003 |
Western Central Pacific | ||
| Microcosmus savignyi Monniot, 1962 |
Eastern Atlantic and the Mediterranean | ||
| Microcosmus squamiger Michaelsen, 1927 |
Scaly tunicate | Cosmopolitan | 5 |
| Microcosmus stoloniferus Kott, 1952 |
Indo-West Pacific | ||
| Microcosmus sulcatus unspecified |
Western Indian Ocean and the Mediterranean | ||
| Microcosmus trigonimus Millar, 1955 |
Western Indian Ocean | ||
| Microcosmus tuberculatus Kott, 1985 |
Western Central Pacific | ||
| Microcosmus vesiculosus Monniot, & Monniot, 2001 |
Western Central Pacific | ||
| Microcosmus vulgaris Heller, 1877 |
Atlantic and the Mediterranean Sea |