Pinnotheridae
The Pinnotheridae are a family of tiny soft-bodied crabs that live commensally in the mantles of certain bivalve molluscs. Tunicotheres moseri is commensal with a tunicate. The earliest fossils attributable to the Pinnotheridae date from the Danian.
Genera and species
This is a comprehensive list of species in the family, as of 2008:;Abyssotheres
;Afropinnotheres
;Alarconia
;Alain
- Alain crosnieri
- Alain raymondi Ahyong & Ng, 2008
;Arcotheres
- Arcotheres alcocki
- Arcotheres arcophilus
- Arcotheres coarctatus
- Arcotheres exiguus
- Arcotheres guinotae
- Arcotheres latifrons
- Arcotheres latus
- Arcotheres modiolicola
- Arcotheres nudifrons
- Arcotheres palaensis
- Arcotheres pernicola
- Arcotheres placunae
- Arcotheres rayi
- Arcotheres rhombifer
- Arcotheres rotundatus
- Arcotheres similis
- Arcotheres sinensis
- Arcotheres spinidactylus
- Arcotheres tivelae
- Arcotheres winckworthi
- Austinixa aidae
- Austinixa behreae
- Austinixa bragantina
- Austinixa chacei — Chace pea crab
- Austinixa cristata
- Austinixa felipensis
- Austinixa gorei
- Austinixa patagonensis
- Austinotheres angelicus
- Buergeres deccanensis
- Buergeres holothuriae
- Buergeres ortmanni
- Buergeres tenuipes
- Calyptraeotheres garthi
- Calyptraeotheres granti
- Calyptraeotheres hernandezi
- Calyptraeotheres politu
- Clypeasterophilus juvenilis
- Clypeasterophilus rugatus
- Clypeasterophilus stebbingi
- Clypeasterophilus ususfructus
- Dissodactylus crinitichelis — seabiscuit pea crab
- Dissodactylus glasselli
- Dissodactylus latus
- Dissodactylus lockingtoni
- Dissodactylus mellitae — sand-dollar pea crab
- Dissodactylus meyerabichi
- Dissodactylus nitidus
- Dissodactylus pelagicus
- Dissodactylus pinna
- Dissodactylus primitivus
- Dissodactylus schmitti
- Dissodactylus singularis
- Dissodactylus speciosus
- Dissodactylus tokyoensis
- Dissodactylus unicornis
- Dissodactylus xantusi
- Durckheimia caeca
- Durckheimia carinipes
- Durckheimia lochi
- Epulotheres angelae
- Ernestotheres conicola
- Fabia byssomiae
- Fabia canfieldi
- Fabia carvachoi
- Fabia concharum — smooth mussel crab
- Fabia felderi
- Fabia melanguena
- Fabia obtusidentata
- Fabia subquadrata — grooved mussel crab
- Fabia tellinae
- Gemmotheres chamae — jewel-box pea crab
- Glassellia costaricana
- Holotheres flavus
- Holotheres halingi
- Holotheres semperi
- Holotheres setnai
- Holotheres villosissimus
- Holothuriophilus mutuensis
- Holothuriophilus pacificus
- Holothuriophilus trapeziformis
- Hospitotheres powelli
- Indopinnixa mortoni
- Indopinnixa sipunculana
- Juxtafabia muliniarum
- Limotheres nasutus
- Nannotheres moorei
- Nepinnotheres affinis
- Nepinnotheres africanus
- Nepinnotheres androgynus
- Nepinnotheres cardii
- Nepinnotheres glaberrimus
- Nepinnotheres novaezelandiae — New Zealand pea crab
- Nepinnotheres pectinicola
- Nepinnotheres pinnotheres
- Nepinnotheres rathbunae
- Nepinnotheres sanqueri
- Nepinnotheres tellinae
- Nepinnotheres villosulus
- Opisthopus transversus — mottled pead crab
- Orthotheres glaber
- Orthotheres haliotidis
- Orthotheres laevis
- Orthotheres longipes
- Orthotheres serrei
- Orthotheres strombi — conch pea crab
- Orthotheres turboe
- Orthotheres unguifalcula
- Ostracotheres affinis
- Ostracotheres cynthiae
- Ostracotheres holothuriensis
- Ostracotheres spondyli
- Ostracotheres subglobosus
- Ostracotheres tomentipes
- Ostracotheres tridacnae
- Parapinnixa affinis — California bay pea crab
- Parapinnixa beaufortensis
- Parapinnixa bouvieri
- Parapinnixa cortesi
- Parapinnixa cubana
- Parapinnixa glasselli
- Parapinnixa hendersoni
- Parapinnixa magdalensis
- Parapinnixa nitida
- Pinnaxodes chilensis
- Pinnaxodes floridensis — polkadotted pea crab
- Pinnaxodes gigas
- Pinnaxodes major
- Pinnaxodes tomentosus
- Pinnixa abbotti
- Pinnixa affinis
- Pinnixa arenicola
- Pinnixa bahamondei
- Pinnixa balanoglossa
- Pinnixa barnhardti
- Pinnixa brevipollex
- Pinnixa californiensis
- Pinnixa chaetopterana — tube pea crab
- Pinnixa chiloensis
- Pinnixa costaricana
- Pinnixa cylindrica
- Pinnixa darwini
- Pinnixa eburna
- Pinnixa faba — mantle pea crab
- Pinnixa faxoni
- Pinnixa floridana
- Pinnixa forficulimanus
- Pinnixa franciscana
- Pinnixa fusca
- Pinnixa gracilipes
- Pinnixa haematosticta
- Pinnixa hiatus
- Pinnixa huffmani
- Pinnixa latissima
- Pinnixa leptodactyla
- Pinnixa leptosynaptae
- Pinnixa littoralis — gaper pea crab
- Pinnixa longipes — longleg pea crab
- Pinnixa lunzi — Lunz pea crab
- Pinnixa minuscula
- Pinnixa minuta
- Pinnixa monodactyla — thumbless pea crab
- Pinnixa occidentalis
- Pinnixa paitensis
- Pinnixa pearsei
- Pinnixa pembertoni
- Pinnixa penultipedalis
- Pinnixa petersi
- Pinnixa plectrophoros
- Pinnixa rapax
- Pinnixa rathbuni
- Pinnixa rectinens
- Pinnixa richardsonia
- Pinnixa salvadorensis
- Pinnixa sayana
- Pinnixa scamit
- Pinnixa schmitti — Schmitt pea crab
- Pinnixa tomentosa
- Pinnixa transversalis
- Pinnixa tubicola
- Pinnixa tumida
- Pinnixa valdiviensis
- Pinnixa valeri
- Pinnixa vanderhorsti
- Pinnixa weymouthi
- Pinnotherelia laevigata
- Pinnotheres atrinae
- Pinnotheres atrinicola
- Pinnotheres bidentatus
- Pinnotheres bipunctatus
- Pinnotheres boninensis
- Pinnotheres borradalei
- Pinnotheres corbiculae
- Pinnotheres coutieri
- Pinnotheres cyclinus
- Pinnotheres dilatatus
- Pinnotheres dofleini
- Pinnotheres edwardsi
- Pinnotheres excussus
- Pinnotheres globosus
- Pinnotheres gordonae
- Pinnotheres guerini
- Pinnotheres haiyangensis
- Pinnotheres hanumantharaoi
- Pinnotheres hemphilli
- Pinnotheres hickmani
- Pinnotheres hirtimanus
- Pinnotheres jamesi
- Pinnotheres kamensis
- Pinnotheres kutensis
- Pinnotheres lanensis
- Pinnotheres laquei
- Pinnotheres latipes
- Pinnotheres lithodomi
- Pinnotheres luminatus
- Pinnotheres mactricola
- Pinnotheres maindromi
- Pinnotheres margaritiferae
- Pinnotheres nigrans
- Pinnotheres obesus
- Pinnotheres obscuridentata
- Pinnotheres obscurus
- Pinnotheres onychodactylus
- Pinnotheres orcutti
- Pinnotheres ostrea
- Pinnotheres paralatissimus
- Pinnotheres parvulus
- Pinnotheres pecteni
- Pinnotheres pectunculi
- Pinnotheres perezi
- Pinnotheres pholadis
- Pinnotheres pichilinquei
- Pinnotheres pilulus
- Pinnotheres pilumnoides
- Pinnotheres pisum — pea crab
- Pinnotheres pubescens
- Pinnotheres pugettensis — Puget pea crab
- Pinnotheres purpureus
- Pinnotheres quadratus
- Pinnotheres ridgewayi
- Pinnotheres rouxi
- Pinnotheres sanguinolariae
- Pinnotheres sebastianensis
- Pinnotheres serrignathus
- Pinnotheres shoemakeri
- Pinnotheres siamensis
- Pinnotheres socius
- Pinnotheres taichungae
- Pinnotheres taylori
- Pinnotheres trichopus
- Pinnotheres tsingtaoensis
- Pinnotheres vicaji
- Pseudopinnixa carinata
- Raytheres clavapedatus
- Sakaina asiatica
- Sakaina incisa
- Sakaina japonica
- Sakaina koreensis
- Sakaina yokoyai
- Scleroplax granulata — burrow pea crab
- Serenotheres besutensis
- Sindheres karachiensis
- Tetrias fischerii
- Tetrias scabripes
- Tridacnatheres whitei
- Tumidotheres maculatus — squatter pea crab
- Tumidotheres margarita
- Tunicotheres moseri — ascidian pea crab
- Viridotheres buergeri
- Viridotheres gracilis
- Viridotheres lillyae
- Viridotheres marionae
- Viridotheres otto
- Viridotheres viridis
- Visayeres acron
- Waldotheres mccainae
- Xanthasia murigera
- Zaops geddesi
- Zaops ostreus
is eating, and has landed on the sea otter's neck