Species under Didemnum
n= 215
Species name Common name Distribution Max. Length (cm)
Didemnum ahu
Monniot & Monniot, 1987
Western Pacific and Southwest Atlantic
Didemnum albidum
(Verrill, 1871)
Northern white crust Indo-Pacific, Northern Atlantic and the Arctic
Didemnum albopunctatum
Sluiter, 1909
Indo-Pacific 0.0035
Didemnum algasedens
Monniot, & Monniot, 2001
Western Central Pacific
Didemnum amethysteum
(Van Name, 1902)
Western Central Atlantic
Didemnum amourouxi
Lafargue, 1976
Northeast Atlantic and the Mediterranean Sea
Didemnum anoi
Monniot & Monniot, 1987
Eastern Central Pacific
Didemnum apersum
Tokioka, 1953
Northwest Pacific
Didemnum apuroto
Monniot & Monniot, 1987
Western Pacific
Didemnum arancium
Kott, 2001
Indo-West Pacific
Didemnum aratore
Kott, 2004
Eastern Indian Ocean
Didemnum asterix
Kott, 2004
Eastern Indian Ocean
Didemnum asteropum
(Sluiter, 1895)
Indo-Pacific
Didemnum astrum
Kott, 2001
Indo-West Pacific
Didemnum augusti
Michaelsen, 1920
Indo-Pacific
Didemnum aures
Monniot, 2001
Southeast Atlantic
Didemnum bentarti
Varela & Ramos-Esplá, 2008
Antarctic
Didemnum beringense
Romanov, 1977
Northern Pacific
Didemnum bicolor
Kott, 2001
Indian Ocean
Didemnum biglans
(Sluiter, 1906)
Antarctic
Didemnum biglutinum
Monniot, 1995
Western Central Pacific
Didemnum bimasculum
Monniot, 1995
Western Central Pacific
Didemnum bisectatum
Kott, 2001
Western Central Pacific
Didemnum bisyncraton
Michaelsen, 1920
Indo-Pacific
Didemnum braueri
Michaelsen, 1920
Indo-Pacific
Didemnum brevioris
Monniot & Monniot, 1997
Western Indian Ocean
Didemnum caesium
Sluiter, 1909
Indo-Pacific
Didemnum candidum
Savigny, 1816
White didemnid Cosmopolitan 0.5
Didemnum captivum
Monniot & Monniot, 1997
Western Indian Ocean
Didemnum carnulentum
Ritter & Forsyth, 1917
Pacific white crust Eastern Pacific and Northeast Atlantic 12.5
Didemnum caudiculatum
Romanov, 1989
Western Pacific
Didemnum cerebrale
Michaelsen, 1920
Indo-Pacific
Didemnum chartaceum
(Sluiter, 1909)
Indo-Pacific
Didemnum chilense
Ärrnbäck, 1929
Western North America. Southwest Pacific
Didemnum cilicium
Kott, 2005
Eastern Indian Ocean
Didemnum cineraceum
(Sluiter, 1898)
Pacific Ocean and Atlantic Ocean
Didemnum clavum
Kott, 2001
Indo-West Pacific
Didemnum coccineum
(Drasche, 1883)
Northeast Atlantic and the Mediterranean Sea
Didemnum commune
(Della Valle, 1877)
Northeast Atlantic and the Mediterranean Sea
Didemnum complexum
Kott, 2001
Indo-West Pacific
Didemnum conchyliatum
(Sluiter, 1898)
White speck tunicate Western Central Atlantic
Didemnum congregatum
Kott, 2004
Western Central Pacific
Didemnum contortum
Monniot & Monniot, 1997
Western Indian Ocean
Didemnum coralliforme
Kott, 2004
Indo-West Pacific 0.005
Didemnum coriaceum
(Drasche, 1883)
Cosmopolitan
Didemnum corium
Kott, 2005
Eastern Indian Ocean
Didemnum crescente
Kott, 2001
Indo-West Pacific 0.0062
Didemnum cuculliferum
(Sluiter, 1909)
Colony sea squirt Western Central Pacific 2
Didemnum cygnuus
Kott, 2001
Eastern Indian Ocean
Didemnum dealbatum
Sluiter, 1909
Indo-Pacific
Didemnum delectum
Kott, 2001
Eastern Indian Ocean 0.0035
Didemnum densum
(Nott, 1892)
Southwest Pacific
Didemnum dicolla
Monniot & Monniot, 1997
Western Indian Ocean
Didemnum diffundum
Monniot, 1995
Western Central Pacific
Didemnum digestum
Sluiter, 1909
Indo-Pacific
Didemnum diversum
Kott, 2004
Eastern Indian Ocean
Didemnum domesticum
Kott, 2004
Western Central Pacific
Didemnum dorotubu
(Oka, 1931)
Northwest Pacific
Didemnum drachi
Lafargue, 1975
Atlantic and the Mediterranean Sea
Didemnum duplicatum
Monniot, 1983
Western Central Atlantic
Didemnum ectensum
Romanov, 1989
Northern Pacific
Didemnum edmondsoni
Eldredge, 1967
Eastern Central Pacific
Didemnum effusium
Kott, 2001
Eastern Indian Ocean
Didemnum elikapekae
Eldredge, 1967
Eastern Central Pacific
Didemnum elongatum
Sluiter, 1909
Indo-West Pacific 0.01
Didemnum epikelp
Monniot, 2001
Southeast Atlantic
Didemnum etiolum
Kott, 1982
Western Central Pacific
Didemnum fibriae
Kott, 2004
Eastern Indian Ocean
Didemnum filiforme
Romanov, 1989
Western Pacific
Didemnum flavoviride
Monniot, 1995
Western Central Pacific
Didemnum fragile
Sluiter, 1909
Indo-West Pacific
Didemnum fragum
Kott, 2001
Indo-West Pacific
Didemnum fucatum
Sluiter, 1909
Indo-West Pacific
Didemnum fulgens
(Milne-Edwards, 1841)
Atlantic and the Mediterranean
Didemnum fuscum
Sluiter, 1909
Indo-West Pacific
Didemnum gelatinosum
(Milne-Edwards, 1841)
Eastern Atlantic
Didemnum gemmiparum
Romanov, 1976
Western Pacific
Didemnum gintonicum
Eldredge, 1966
Western Central Pacific
Didemnum globiferum
Monniot, 2001
Southeast Atlantic
Didemnum grande
(Herdman, 1886)
Indo-Pacific 0.009
Didemnum granulatum
Tokioka, 1954
Indo-Pacific and Atlantic Ocean 0.005
Didemnum granulosum
(Drasche, 1883)
Atlantic and the Mediterranean Sea
Didemnum guttatum
Monniot & Monniot, 1996
Western Central Pacific
Didemnum halimedae
Monniot, 1983
Western Central Atlantic
Didemnum helgolandicum
Michaelsen, 1921
Northeast Atlantic
Didemnum herba
Kott, 2001
Western Central Pacific
Didemnum hiopaa
Monniot & Monniot, 1987
Pacific Ocean
Didemnum immundum
Romanov, 1974
Northwest Pacific
Didemnum inaequilobatum
Daumezon, 1909
Mediterranean
Didemnum inauratum
Monniot, 1983
Western Central Atlantic
Didemnum incanum
(Herdman, 1899)
Indo-West Pacific 0.003
Didemnum inveteratum
Kott, 2001
Eastern Indian Ocean
Didemnum japonicum
(Herdman, 1886)
Northwest Pacific
Didemnum jedanense
Sluiter, 1909
Indo-West Pacific
Didemnum jucundum
Kott, 2001
Indo-West Pacific 0.0082
Didemnum kurilense
Romanov, 1989
Western Pacific
Didemnum lacertosum
Monniot, 1995
Western Central Pacific
Didemnum lahillei
Hartmeyer, 1909
Atlantic and the Mediterranean
Didemnum lambitum
Michaelsen, 1924
Southwest Pacific
Didemnum leopardi
Monniot, 2001
Western Indian Ocean
Didemnum leopardus
Kott, 2005
Western Central Pacific
Didemnum levitas
Kott, 2001
Western Central Pacific
Didemnum ligulum
Monniot, 1983
Western Central Pacific and Western Atlantic
Didemnum lillipution
Kott, 2004
Eastern Indian Ocean
Didemnum linatum
Kott, 2001
Eastern Indian Ocean
Didemnum linguiferum
Monniot & Monniot, 1996
Western Central Pacific
Didemnum lissoclinum
Kott, 2001
Indo-West Pacific 0.007
Didemnum lithostrotum
Brewin, 1956
Western Pacific
Didemnum macrosiphonium
Kott, 2001
Eastern Indian Ocean
Didemnum macrospiculatum
Tokioka, 1967
Western Central Pacific
Didemnum maculatum
(Nott, 1892)
Southwest Pacific
Didemnum maculosum
(Milne-Edwards, 1841)
Atlantic, Mediterranean, and the Arctic
Didemnum madeleinae
Monniot, & Monniot, 2001
Western Central Pacific 0.005
Didemnum magnilarvum
Millar, 1962
Western Indian Ocean
Didemnum mantile
Kott, 2001
Eastern Indian Ocean
Didemnum megaductus
Romanov, 1974
Northwest Pacific
Didemnum megasterix
Kott, 1995
Western Central Pacific
Didemnum membranaceum
Sluiter, 1909
Indo-Pacific 0.0056
Didemnum mesembrinum
Monniot, 2001
Southeast Atlantic
Didemnum microthoracicum
Kott, 2001
Eastern Indian Ocean
Didemnum millari
Monniot, 2001
Southeast Atlantic
Didemnum milleporae
Vasseur, 1969
Western Indian Ocean
Didemnum minisculum
Kott, 2001
Eastern Indian Ocean
Didemnum minispirale
Romanov, 1989
Western Pacific
Didemnum misakiense
(Oka & Willey, 1892)
Western Pacific
Didemnum molle
(Herdman, 1886)
Green urn ascidian Indo-West Pacific
Didemnum monile
Kott, 2001
Eastern Indian Ocean
Didemnum moseleyi
(Herdman, 1886)
White colonial tunicate Indo-Pacific 0.005
Didemnum multispirale
Kott, 2001
Indo-West Pacific
Didemnum mutabile
Monniot & Monniot, 1987
Pacific Ocean
Didemnum nambucciensis
Kott, 2004
Southwest Pacific
Didemnum nekozita
Tokioka, 1967
Indo-West Pacific 0.00375
Didemnum nigricans
Monniot, 2001
Western Central Pacific
Didemnum nigrum
Monniot & Monniot, 1996
Western Central Pacific
Didemnum niveum
(Nott, 1892)
Southwest Pacific
Didemnum nocturnum
Monniot & Monniot, 1997
Western Indian Ocean
Didemnum oblitum
Kott, 2001
Western Central Pacific
Didemnum obscurum
Monniot, 1969
Orange lattice ascidian Indo-West Pacific, Atlantic and the Mediterranean Sea
Didemnum ossium
Kott, 2001
Indo-West Pacific 0.006
Didemnum paa
Monniot & Monniot, 1987
Western Pacific
Didemnum pacificum
Tokioka, 1953
Northwest Pacific
Didemnum papillatum
Romanov, 1974
Northwest Pacific
Didemnum parancium
Kott, 2001
Western Central Pacific
Didemnum parau
Monniot & Monniot, 1987
Pacific Ocean
Didemnum pardum
Tokioka, 1963
Northwest Pacific
Didemnum parvum
Monniot & Monniot, 2003
Eastern Central Pacific 1
Didemnum patulum
(Herdman, 1899)
Indo-West Pacific 0.007
Didemnum pecten
Kott, 2001
Indo-West Pacific 0.008
Didemnum pele
Eldredge, 1967
Eastern Central Pacific
Didemnum pellucidum
Kott, 2001
Eastern Indian Ocean
Didemnum perlucidum
Monniot, 1983
White crust tunicate Indo-Pacific and Atlantic Ocean
Didemnum perplexum
Kott, 2001
Indo-West Pacific
Didemnum perspicuum
Giard, 1873
Atlantic and the Mediterranean
Didemnum peyrefittense
Brément, 1913
Northeast Atlantic and the Mediterranean
Didemnum pitipiri
Monniot & Monniot, 1987
Central Pacific
Didemnum plebium
Kott, 2005
Eastern Indian Ocean
Didemnum poecilomorpha
Monniot & Monniot, 1996
Indo-West Pacific 0.006
Didemnum polare
(Hartmeyer, 1903)
Northeast Atlantic
Didemnum precocinum
Kott, 2001
Indo-West Pacific
Didemnum protectum
(Daumézon, 1908)
Atlantic and the Mediterranean
Didemnum psammatodes
(Sluiter, 1895)
Indo-Pacific, Central Atlantic and Antarctic Atlantic
Didemnum pseudobiglans
Romanov, 1989
Western Pacific
Didemnum pseudofulgens
Médioni, 1970
Atlantic and the Mediterranean Sea
Didemnum quincunciale
Michaelsen,
Indo-West Pacific
Didemnum recurvatum
Sluiter, 1909
Indo-Pacific
Didemnum roberti
Michaelsen, 1930
Indo-West Pacific
Didemnum rodriguesi
Rocha & Monniot, 1993
Southwest Atlantic and Indo-West Pacific
Didemnum romssae
Marks, 1996
Northeast Atlantic
Didemnum roseum
Sars, 1851
Northeast Atlantic
Didemnum rota
Kott, 2004
Eastern Indian Ocean
Didemnum rubeum
Monniot & Monniot, 1996
Pacific Ocean
Didemnum sachalinense
Romanov, 1989
Western Pacific
Didemnum santaelenae
Van Name, 1945
Southeast Pacific
Didemnum scopi
Kott, 2001
Indo-West Pacific
Didemnum siphonale
Tokioka, 1967
Northwest Pacific
Didemnum sordidum
Kott, 2001
Indo-Pacific
Didemnum spadix
Kott, 2001
Eastern Indian Ocean
Didemnum speciosum
(Herdman, 1886)
Southwest Atlantic 0.006
Didemnum sphaericum
Tokioka, 1967
Western Central Pacific
Didemnum spongoides
Sluiter, 1909
Indo-West Pacific
Didemnum spumante
Kott, 2004
Eastern Indian Ocean
Didemnum spumosum
Kott, 2004
Southwest Pacific
Didemnum stercoratum
Monniot & Monniot, 1996
Western Central Pacific
Didemnum stilense
Michaelsen, 1934
Southeast Atlantic and Western Indian Ocean
Didemnum stragulum
Kott, 2001
Indo-West Pacific
Didemnum studeri
Hartmeyer, 1911
White sea crust Southern Atlantic, Indo-Pacific and the Antarctic
Didemnum subflavum
(Herdman, 1886)
Antarctic Indian Ocean
Didemnum sucosum
Kott, 2001
Eastern Indian Ocean
Didemnum tabulatum
Sluiter, 1909
Indo-West Pacific 0.007
Didemnum tenue
(Herdman, 1886)
Southwest Atlantic, Antarctic and Southeast Pacific
Didemnum ternerratum
Kott, 2001
Eastern Indian Ocean 0.0046
Didemnum tetrahedrum
Dias & Rodrigues, 2004
Southwest Atlantic
Didemnum theca
Kott, 2001
Eastern Indian Ocean
Didemnum toafene
Monniot & Monniot, 1987
Western Pacific
Didemnum tonga
(Herdman, 1886)
Western Pacific
Didemnum translucidum
Tokioka, 1953
Northwest Pacific
Didemnum transparentum
Romanov, 1977
Northwest Pacific
Didemnum trispirale
Romanov, 1989
Western Pacific
Didemnum trivolutum
Millar, 1960
Antarctic Indian Ocean
Didemnum tuberatum
(Nott, 1892)
Southwest Pacific
Didemnum tumulatum
Kott, 2004
Eastern Indian Ocean
Didemnum usitatum
Kott, 2004
Eastern Indian Ocean
Didemnum uturoa
Monniot & Monniot, 1987
Western Pacific
Didemnum vahatuio
Monniot & Monniot, 1987
Indo-West Pacific 0.008
Didemnum vanderhorsti
Van Name, 1924
Western Atlantic and Eastern Central Pacific
Didemnum velans
Michaelsen, 1920
Southeast Atlantic
Didemnum verdantum
Kott, 2001
Western Central Pacific
Didemnum vermiforme
Kott, 2002
Western Pacific
Didemnum vesperi
Kott, 2004
Eastern Indian Ocean
Didemnum vestum
Kott, 2004
Compound sea squirt Western Atlantic
Didemnum vexillum
Romanov, 1989
Southwest Pacific
Didemnum via
Kott, 2001
Western Central Pacific
Didemnum viride
(Herdman, 1906)
Indo-West Pacific
Didemnum vulgare
Kott, 2001
Eastern Indian Ocean
Didemnum yolky
Monniot & Monniot, 1997
Western Indian Ocean
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