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Fish Identification
Other identification tools | SeaLifeBase

Non-fish Identification: Find Species

Family: Polyceridae (See list of species below)

Select Ocean (marine/brackish) or Continent (freshwater):

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Total number of spines in dorsal and anal fins (optional)



107 species with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)
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Colga pacifica
[]
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Colga ramosa
[]
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Crimora coneja
[Rabbit doris]
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Crimora multidigitalis
[]


Crimora papillata
[]
No picture found

Galacera marplatensis
[]
No picture found

Greilada elegans
[]
No picture found

Heteroplocamus pacificus
[]
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Holoplocamus papposus
[Small knobbed sea slug]
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Kalinga ornata
[]
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Kaloplocamus acutus
[Acute kaloplocamus]
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Kaloplocamus croceus
[]
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Kaloplocamus gulo
[]


Kaloplocamus ramosus
[]


Limacia clavigera
[Orange clubbed sea slug]
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Limacia cockerelli
[Cockerell's dorid]
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Limacia janssi
[Janss' dorid]
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Limacia jellyi
[]
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Limacia langavi
[]
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Limacia miali
[]
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Nembrotha amitina
[]


Nembrotha aurea
[]


Nembrotha chamberlaini
[Chamberlain's Nembrotha]


Nembrotha cristata
[Crested nembrotha]
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Nembrotha guttata
[]


Nembrotha kubaryana
[Dusky nembrotha]


Nembrotha lineolata
[Lined nembrotha]


Nembrotha livingstonei
[Livingstone's Nembrotha]


Nembrotha megalocera
[Great nembrotha]
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Nembrotha milleri
[Miller's Nembrotha]
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Nembrotha mullineri
[]
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Nembrotha nigerrima
[Variable neon slug]


Nembrotha purpureolineolata
[Purple lined nembrotha]


Nembrotha rutilans
[Red-gilled nembrotha]


Nembrotha yonowae
[]
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Palio dubia
[Dubious dorid]
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Palio dubius
[]
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Palio nothus
[]
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Palio pallida
[]
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Palio zosterae
[Eelgrass polycera]
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Plocamopherus ceylonicus
[Ceylon plocamopherus]


Plocamopherus imperialis
[Imperial plocamopherus]
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Plocamopherus lucayensis
[]
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Plocamopherus maculapodium
[]
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Plocamopherus maculatus
[]
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Plocamopherus ocellatus
[]
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Plocamopherus pilatectus
[]


Plocamopherus tilesii
[Tile's sea slug]
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Polycera alabe
[Ink-stain dorid]
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Polycera atra
[Orange-spike polycera]
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Polycera aurantiomarginata
[]
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Polycera aurisula
[]


Polycera capensis
[Crowned nudibranch]
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Polycera chilluna
[Harlequin]
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Polycera elegans
[]
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Polycera faeroensis
[]
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Polycera fujitai
[]
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Polycera gnupa
[]


Polycera hedgpethi
[Hedgpeth's dorid]
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Polycera herthae
[]
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Polycera hummi
[]
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Polycera incognita
[]
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Polycera janjukia
[Janjuki polycera]
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Polycera maculata
[]
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Polycera marplatensis
[]
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Polycera melanosticta
[Black-speckled polycera]
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Polycera odhneri
[]
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Polycera parvula
[Small polycera]
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Polycera priva
[White-bordered sea slug]


Polycera quadrilineata
[Fourline nudibranch]
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Polycera risbeci
[]
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Polycera rycia
[]
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Polycera tricolor
[Three-color polycera]
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Polycerella emertoni
[]
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Polycerella glandulosa
[Gland dorid]
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Roboastra arika
[Waterlilly roboastra]
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Roboastra europea
[]


Roboastra gracilis
[Slender roboastra]
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Roboastra luteolineata
[Bordered roboastra]
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Roboastra luteolineolata
[]
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Roboastra ricei
[Banana polycera]
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Roboastra tigris
[Tiger dorid]
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Tambja affinis
[Related tambja]
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Tambja capensis
[]


Tambja ceutae
[]
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Tambja divae
[]
No picture found

Tambja eliora
[Blue-striped sea slug]
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Tambja fusca
[Slimy slug]


Tambja gabrielae
[]
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Tambja gratiosa
[]


Tambja kushimotoensis
[]
No picture found

Tambja limaciformis
[Eliot's tambja]
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Tambja marbellensis
[]


Tambja morosa
[Gloomy nudibranch]
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Tambja mullineri
[]
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Tambja oliva
[]
No picture found

Tambja olivaria
[Olive tambja]
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Tambja stegosauriformis
[]


Tambja verconis
[Verco's nudibranch]
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Thecacera darwini
[Dalmatian sea slug]


Thecacera pacifica
[Pacific thecacera]


Thecacera pennigera
[Rudman's thecacera]


Thecacera picta
[Painted thecacera]
No picture found

Triopha carpenteri
[]
No picture found

Triopha catalinae
[Sea-clown triopha]
No picture found

Triopha maculata
[Maculated triopha]
No picture found

Triopha occidentalis
[Grand triopha]
107 Species of Family Polyceridae
()
Sort by: Species Length
Scientific Name English Name Distribution Max. Length (cm)
Colga pacifica Indo-West Pacific and Wes 6 TL
Colga ramosa Western Atlantic 1.9 DL
Crimora coneja Rabbit doris Eastern Pacific. 2.3 TL
Crimora multidigitalis Indo-West Pacific
Crimora papillata Northeast Atlantic and th
Galacera marplatensis Western Atlantic. 3.3 DL
Greilada elegans Northeast Atlantic
Heteroplocamus pacificus Southwest Pacific
Holoplocamus papposus Small knobbed sea slug Southeast Pacific and Sou 2.5 DL
Kalinga ornata Indo-Pacific
Kaloplocamus acutus Acute kaloplocamus Indo-Pacific
Kaloplocamus croceus Western Pacific and the M
Kaloplocamus gulo Western Atlantic. 1.1 DL
Kaloplocamus ramosus Indo-Pacific, Eastern Atl
Limacia clavigera Orange clubbed sea slug Northeast Atlantic, the M
Limacia cockerelli Cockerell's dorid Eastern Pacific. Tropica 2.6 TL
Limacia janssi Janss' dorid Eastern Pacific. 0.8 TL
Limacia jellyi Southeast Atlantic
Limacia langavi Western Indian Ocean.
Limacia miali Western Indian Ocean
Nembrotha amitina Western Central Pacific
Nembrotha aurea Indo-West Pacific
Nembrotha chamberlaini Chamberlain's Nembrotha Western Pacific 7 TL
Nembrotha cristata Crested nembrotha Indo-West Pacific. 12 TL
Nembrotha guttata Indo-West Pacific 3.5 TL
Nembrotha kubaryana Dusky nembrotha Indo-West Pacific 6 TL
Nembrotha lineolata Lined nembrotha Indo-West Pacific. 4.5 TL
Nembrotha livingstonei Livingstone's Nembrotha Indo-West Pacific. 4 TL
Nembrotha megalocera Great nembrotha Western Indian Ocean 7.5 TL
Nembrotha milleri Miller's Nembrotha Western Central Pacific
Nembrotha mullineri Western Central Pacific
Nembrotha nigerrima Variable neon slug Western Pacific
Nembrotha purpureolineolata Purple lined nembrotha Indo-Pacific 6 TL
Nembrotha rutilans Red-gilled nembrotha Indo-West Pacific 5 TL
Nembrotha yonowae Western Central Pacific
Palio dubia Dubious dorid Arctic, Atlantic, Pacific 1.2 TL
Palio dubius Atlantic Ocean. 1 DL
Palio nothus Atlantic Ocean, Northeast
Palio pallida Eastern Pacific.
Palio zosterae Eelgrass polycera Eastern Pacific.
Plocamopherus ceylonicus Ceylon plocamopherus Indo-Pacific
Plocamopherus imperialis Imperial plocamopherus Indo-West Pacific 10 TL
Plocamopherus lucayensis Western Atlantic. 4 DL
Plocamopherus maculapodium Western Central Pacific
Plocamopherus maculatus Indo-Pacific 4 TL
Plocamopherus ocellatus Western Indian Ocean and
Plocamopherus pilatectus Western Atlantic. 2.8 DL
Plocamopherus tilesii Tile's sea slug Indo-West Pacific and the
Polycera alabe Ink-stain dorid Eastern Central Pacific. 3 TL
Polycera atra Orange-spike polycera Eastern Pacific. 2.2 TL
Polycera aurantiomarginata Mediterranean Sea.
Polycera aurisula Western Atlantic 1 DL
Polycera capensis Crowned nudibranch Eastern Atlantic and Indo 7 TL
Polycera chilluna Harlequin Western Atlantic 2.5 DL
Polycera elegans Mediterranean Sea.
Polycera faeroensis Northeast Atlantic and th
Polycera fujitai Western Pacific
Polycera gnupa Eastern Pacific. 1.4 TL
Polycera hedgpethi Hedgpeth's dorid Indo-Pacific, Atlantic Oc 4 TL
Polycera herthae Western Central Atlantic. 0.3 TL
Polycera hummi Western Atlantic 2 DL
Polycera incognita Western Atlantic. 0.7 DL
Polycera janjukia Janjuki polycera Indo-West Pacific
Polycera maculata Mediterranean Sea.
Polycera marplatensis Southeast Pacific and Sou
Polycera melanosticta Black-speckled polycera Indo-West Pacific
Polycera odhneri Western Atlantic. 2.5 DL
Polycera parvula Small polycera Indo-West Pacific
Polycera priva White-bordered sea slug Southeast Pacific
Polycera quadrilineata Fourline nudibranch Eastern Atlantic, Western
Polycera risbeci Indo-West Pacific. 1 TL
Polycera rycia Western Atlantic 0.9 DL
Polycera tricolor Three-color polycera Eastern Pacific. 2 TL
Polycerella emertoni Atlantic Ocean and the Me 0.6 DL
Polycerella glandulosa Gland dorid Eastern Pacific. 2.8 TL
Roboastra arika Waterlilly roboastra Indo-West Pacific. 4 TL
Roboastra europea Mediterranean Sea.
Roboastra gracilis Slender roboastra Indo-Pacific. 3 TL
Roboastra luteolineata Bordered roboastra Western Central Pacific
Roboastra luteolineolata Indo-Pacific 3 TL
Roboastra ricei Banana polycera Western Atlantic. 5.1 DL
Roboastra tigris Tiger dorid Eastern Central Pacific 30 TL
Tambja affinis Related tambja Indo-West Pacific 7 TL
Tambja capensis Southeast Atlantic and We
Tambja ceutae Mediterranean Sea.
Tambja divae Southwest Atlantic 1.2 TL
Tambja eliora Blue-striped sea slug Eastern Pacific. 8 TL
Tambja fusca Slimy slug Eastern Central Pacific 5 TL
Tambja gabrielae Western Central Pacific
Tambja gratiosa Western Atlantic. 2.2 DL
Tambja kushimotoensis Indo-West Pacific 5 TL
Tambja limaciformis Eliot's tambja Indian Ocean 1.5 TL
Tambja marbellensis Mediterranean Sea.
Tambja morosa Gloomy nudibranch Indo-Pacific. East Afric 7 TL
Tambja mullineri Southeast Pacific 4 TL
Tambja oliva Western Atlantic. 2 DL
Tambja olivaria Olive tambja Western Indian Ocean 6 TL
Tambja stegosauriformis Western Atlantic. 5 DL
Tambja verconis Verco's nudibranch Indo-West Pacific 13 TL
Thecacera darwini Dalmatian sea slug Southeast Pacific
Thecacera pacifica Pacific thecacera Indo-Pacific. 3.5 DL
Thecacera pennigera Rudman's thecacera Circumglobal and the Medi 2 TL
Thecacera picta Painted thecacera Indo-West Pacific 1 TL
Triopha carpenteri Eastern Central Pacific
Triopha catalinae Sea-clown triopha Pacific Ocean. Tropical 7 TL
Triopha maculata Maculated triopha Eastern Pacific. Tropica 18 TL
Triopha occidentalis Grand triopha Eastern Pacific.



Other identification tools in SeaLifeBase


Quick Identification
Identification keys
Identification by morphometrics
Identification by pictures:
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