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Non-fish Identification: Find Species

Family: Portunidae swimming crabs (See list of species below)

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



88 species in Pacific, Northwest with fin ray counts including ? spines in dorsal and ? in anal fins (see list below)
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Alionectes pulchricristatus
[]


Callinectes sapidus
[Blue crab]


Caphyra loevis
[Xenia swimming crab]
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Caphyra rotundifrons
[Turtle-weed crab]
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Carupa tenuipes
[Violet-eyed swimming crab]
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Catoptrus nitidus
[]
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Charybdis acuta
[]
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Charybdis affinis
[Smoothshelled swimming crab]
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Charybdis amboinensis
[]
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Charybdis anisodon
[Twospined arm swimming crab]


Charybdis annulata
[Banded-legged swimming crab]
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Charybdis bimaculata
[Two-spot swimming crab]
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Charybdis brevispinosa
[]
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Charybdis callianassa
[]
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Charybdis erythrodactyla
[Rainbow crab]


Charybdis feriata
[Crucifix crab]
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Charybdis granulata
[]
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Charybdis hawaiensis
[Hawaiian swimming crab]


Charybdis hellerii
[Spiny hands]
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Charybdis hongkongensis
[]


Charybdis japonica
[Japanese swimming crab]
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Charybdis lucifera
[Yellowish brown crab]
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Charybdis miles
[Soldier swimming crab]


Charybdis natator
[Ridged swimming crab]
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Charybdis obtusifrons
[]
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Charybdis orientalis
[]


Charybdis riversandersoni
[]
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Charybdis sagamiensis
[]


Charybdis truncata
[Blunt-toothed crab]
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Charybdis vadorum
[]
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Charybdis variegata
[]


Cycloachelous granulatus
[]
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Cycloachelous orbitosinus
[]


Gonioinfradens paucidentatus
[]
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Goniosupradens acutifrons
[]
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Laleonectes nipponensis
[]


Lissocarcinus orbicularis
[Sea cucumber crab]
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Lissocarcinus polybiodes
[]
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Lupocyclus inaequalis
[]
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Lupocyclus tugelae
[]
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Monomia lucida
[]
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Ovalipes punctatus
[Sand crab]
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Podophthalmus nacreus
[]
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Podophthalmus vigil
[Periscope crab]
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Portunus argentatus
[]
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Portunus brockii
[]
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Portunus gladiator
[]
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Portunus gracilimanus
[]
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Portunus haanii
[Warty swimming crab]
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Portunus orbicularis
[]


Portunus pelagicus
[Blue swimming crab]
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Portunus pubescens
[Hairy swimming crab]


Portunus sanguinolentus
[Threespot swimming crab]
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Portunus trituberculatus
[Gazami crab]


Portunus tuberculosus
[Blood-spot swimming crab]
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Scylla olivacea
[Orange mud crab]
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Scylla paramamosain
[Green mud crab]


Scylla serrata
[Indo-Pacific swamp crab]
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Scylla tranquebarica
[Purple mud crab]


Thalamita admete
[]
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Thalamita bouvieri
[]
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Thalamita cerasma
[]
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Thalamita chaptalii
[]
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Thalamita coeruleipes
[]
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Thalamita cooperi
[]
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Thalamita corrugata
[]


Thalamita crenata
[Wide front swimcrab]
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Thalamita danae
[]
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Thalamita demani
[]
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Thalamita gatavakensis
[]
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Thalamita gloriensis
[]
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Thalamita integra
[]
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Thalamita macropus
[]
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Thalamita mitsiensis
[]


Thalamita picta
[]
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Thalamita poissonii
[Poisson swimming crab]
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Thalamita prymna
[]
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Thalamita seurati
[]
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Thalamita sima
[Four-lobed swimming crab]
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Thalamita spinifera
[]
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Thalamita spinimana
[Spiny claw swimming crab]
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Thalamita stephensoni
[]
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Thalamitoides quadridens
[]
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Thalamitoides tridens
[]
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Xiphonectes bidens
[]


Xiphonectes hastatoides
[]
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Xiphonectes pseudohastatoides
[]
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Xiphonectes unidens
[]
88 Species of Family Portunidae
(swimming crabs)
Sort by: Species Length
Scientific Name English Name Distribution Max. Length (cm)
Alionectes pulchricristatus Indo-West Pacific 2.61 CW
Callinectes sapidus Blue crab Western Atlantic 22.7 WD
Caphyra loevis Xenia swimming crab Indo-West Pacific.
Caphyra rotundifrons Turtle-weed crab Indo-Pacific.
Carupa tenuipes Violet-eyed swimming crab Indo-Pacific
Catoptrus nitidus Indo-West Pacific.
Charybdis acuta Western Pacific.
Charybdis affinis Smoothshelled swimming crab Indo-West Pacific 6 CW
Charybdis amboinensis Western Pacific
Charybdis anisodon Twospined arm swimming crab Indo-West Pacific reachin 4.53 CW
Charybdis annulata Banded-legged swimming crab Indo-Pacific 7 CW
Charybdis bimaculata Two-spot swimming crab Indo-West Pacific 3.43 CW
Charybdis brevispinosa Indo-West Pacific
Charybdis callianassa Indo-West Pacific.
Charybdis erythrodactyla Rainbow crab Indo-Pacific.
Charybdis feriata Crucifix crab Indo-West Pacific 20 CW
Charybdis granulata Indo-West Pacific 8.25 CW
Charybdis hawaiensis Hawaiian swimming crab Pacific Ocean.
Charybdis hellerii Spiny hands Indo-Pacific. Introduced 7.9 CW
Charybdis hongkongensis Indo-West Pacific 4.56 CW
Charybdis japonica Japanese swimming crab Western Pacific 7 CW
Charybdis lucifera Yellowish brown crab Indo-Pacific 47.4 CL
Charybdis miles Soldier swimming crab Indo- Pacific 7.5 CW
Charybdis natator Ridged swimming crab Indo-West Pacific 17 CW
Charybdis obtusifrons Indo-Pacific.
Charybdis orientalis Indo-West Pacific
Charybdis riversandersoni Indo-West Pacific
Charybdis sagamiensis Indo-Pacific
Charybdis truncata Blunt-toothed crab Indo-West Pacific 5 CW
Charybdis vadorum Indo-West Pacific 2.97 CW
Charybdis variegata Indo-West Pacific. 3.04 CW
Cycloachelous granulatus Indo-Pacific.
Cycloachelous orbitosinus Western Pacific
Gonioinfradens paucidentatus Indo-Pacific. Introduced
Goniosupradens acutifrons Indo-West Pacific
Laleonectes nipponensis Indo-Pacific.
Lissocarcinus orbicularis Sea cucumber crab Indo-Pacific.
Lissocarcinus polybiodes Indo-West Pacific.
Lupocyclus inaequalis Indo-Pacific.
Lupocyclus tugelae Indo-West Pacific.
Monomia lucida Indo-West Pacific.
Ovalipes punctatus Sand crab Southern Atlantic and Ind 9.5 CW
Podophthalmus nacreus Western Pacific
Podophthalmus vigil Periscope crab Indo-Pacific 15 CW
Portunus argentatus Indo-West Pacific. 3.81 CW
Portunus brockii Indo-West Pacific
Portunus gladiator Indo-West Pacific. 12 CW
Portunus gracilimanus Indo-West Pacific. 4.27 CW
Portunus haanii Warty swimming crab Indo-West Pacific. 8.24 CW
Portunus orbicularis Western Pacific
Portunus pelagicus Blue swimming crab Indo-West Pacific 20 CW
Portunus pubescens Hairy swimming crab Pacific Ocean
Portunus sanguinolentus Threespot swimming crab Indo-Pacific. From East 21.5 CW
Portunus trituberculatus Gazami crab Indo-West Pacific. 15.86 CW
Portunus tuberculosus Blood-spot swimming crab Indo-Pacific.
Scylla olivacea Orange mud crab Indo-West Pacific 18 CW
Scylla paramamosain Green mud crab Indo-West Pacific 20 CW
Scylla serrata Indo-Pacific swamp crab Indo-West Pacific. Intro 28 CW
Scylla tranquebarica Purple mud crab Eastern Indian Ocean; Nor 20 CW
Thalamita admete Indo-Pacific. Tropical t
Thalamita bouvieri Indo-Pacific. Tropical t
Thalamita cerasma Pacific Ocean
Thalamita chaptalii Indo-Pacific. Tropical t
Thalamita coeruleipes Indo-Pacific. Tropical t
Thalamita cooperi Indo-Pacific. Tropical t
Thalamita corrugata Pacific Ocean. Tropical
Thalamita crenata Wide front swimcrab Indo-Pacific. 8 CW
Thalamita danae Indo-Pacific
Thalamita demani Indo-Pacific.
Thalamita gatavakensis Indo-Pacific.
Thalamita gloriensis Indo-Pacific, Northeast A
Thalamita integra Indo-Pacific.
Thalamita macropus Pacific Ocean.
Thalamita mitsiensis Indo-Pacific. Tropical t
Thalamita picta Indo-Pacific.
Thalamita poissonii Poisson swimming crab Indo-West Pacific and Eas
Thalamita prymna Indo-Pacific.
Thalamita seurati Pacific Ocean
Thalamita sima Four-lobed swimming crab Indo-Pacific 5.62 CW
Thalamita spinifera Indo-Pacific.
Thalamita spinimana Spiny claw swimming crab Indo-West Pacific. 12 CW
Thalamita stephensoni Pacific Ocean
Thalamitoides quadridens Indo-Pacific. Tropical t
Thalamitoides tridens Indo-Pacific.
Xiphonectes bidens Northwest Pacific
Xiphonectes hastatoides Indo-West Pacific and Atl
Xiphonectes pseudohastatoides Western Pacific 5.28 CW
Xiphonectes unidens Northwest Pacific 3.76 CW



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