Dear Greg,
Here in Victoria, Australia I have occassionally seen large numbers of
Pinnotheres hickmani (Guilen, l950) in Mytilus edulis planulatus. Might have
trouble finding or getting them to you but can try if interested
Geoff Macaulay
>From: Greg Farley <[log in to unmask]>
>Reply-To: Conchologists of America List <[log in to unmask]>
>To: [log in to unmask]
>Subject: Pea crabs symbiotic with molluscs
>Date: Wed, 28 Nov 2001 18:37:51 -0500
>
>Dear colleagues:
>
>Hello! By way of introduction, I am a graduate student at Florida State
>University in Tallahassee. My research revolves around the evolution and
>ecology of commensalism, and I'm using pea crabs (Brachyura:
>Pinnotheridae) as a model system. Many species of pea crabs are molluscan
>symbionts, and I write to you with the hope that you might be able to help
>me collect pea crab specimens for gene sequencing and phylogenetic
>analysis.
>
>Several pea crab species in the genera Fabia and Pinnixa are associated
>with bivalves, gastropods, or limpets in the Pacific, typically between
>Alaska and the Gulf of California. Others are symbionts of molluscs in
>the subtropical Atlantic and Gulf of Mexico. It is my hope that some of
>you will be familiar with these crabs, even simply as "incidental"
>symbionts of the molluscan taxa with which you work.
>
>If you would be willing to collect crabs, or know of someone who might,
>please contact me. I've included a complete list of "wanted" taxa below,
>with hosts and species ranges where known. I've included the genera
>Dissodactylus and Clypeasterophilus as well, even though they are
>echinoderm symbionts; please feel free to distribute this list to
>colleagues who work with echinoderms!
>
>Thank you in advance for any help you can offer! Ideally, collected
>specimens should be 'fixed' in 70-100% ethanol (formaldehyde makes genetic
>work impossible). I would be happy to reimburse you for the cost of
>materials and shipping, and I would be more than willing to 'trade' local
>molluscan specimens from the northern Gulf of Mexico. Good advice -
>particularly about other researchers who might be able to help me - would
>also be most welcome!
>
>With best regards,
>
>Greg Farley
>Department of Biological Science
>Florida State University
>Tallahassee, FL 32301
>(850) 644-9840
>[log in to unmask]
>
>
>
>
>genus/species
> host organism
> range
>
>Clypeasterophilus juvenilis
> ?
> Bahamas, Florida (Atlantic and Gulf), Yucatan peninsula
>Clypeasterophilus rugatus
> ?
> Dominica, West Indies; Cuba, Florida
>Clypeasterophilus ususfructus
> ?
> Gulf of CA to Ecuador
>
>Dissodactylus borradailei
> fine white sand
> SE & SW Florida, Jamaica
>Dissodactylus glasselli
> ECHINODERMS: Mellita longifissa
> Chiapas, Mexico to El Salvador
>Dissodactylus latus
> ?
> West Florida to Brazil
>Dissodactylus lockingtoni
> ECHINODERMS: Mellita longifissa; Encope emarginata, E. grandis,
>E.
> californica
> Gulf of CA, Sonora, Mexico
>Dissodactylus nitidus
> ECHINODERMS: E. grandis, E. californica
> Mexico to El Salvador
>Dissodactylus primitivus
> ?
> Tortugas, Florida
>Dissodactylus schmitti
> ?
> White Friars, Mexico
>Dissodactylus xantusi
> ECHINODERMS: Mellita longifissa, Encope spp.
> Gulf of CA to Panama
>
>
>Fabia byssomiae
> BIVALVES: Byssomia distorta, Saxicava distorta, S. arctica
> W. Florida, NW Cuba
>Fabia canfieldi
> LIMPETS: Lucapina crenulata
> Monterey, CA
>Fabia carvachoi
> ?
> Gulf of California
>Fabia concharum
> BIVALVES: Pachydesma, Tapes, Pholas, Mya, Donax, Modiola
> Santa Monica to San Diego, CA
>Fabia emiliai
> ?
> SW Atlantic, Brazil
>Fabia felderi
> ?
> Florida
>Fabia granti
> GASTROPODS: Crucibulum, Acmaea, Crepidula
> Gulf of California
>Fabia malaguena
> ?
> Colombia
>Fabia obtusidentata
> ?
> China
>Fabia subquadrata
> BIVALVES: Mytilus, Tapes, Mya, Modiolus, Cardita
> Alaska to San Diego
>Fabia tellinae
> BIVALVES: tellins
> NW Florida to Alabama
>
>
>Pinnixa barnharti
> HOLOTHURIANS: Liosoma, Molpadia arenicola, Caudina, Holothuria
> Puget Sound to Mexico
>Pinnixa cylindrica
> Arenicola cristata
> MA to SC, W and NW Florida
>Pinnixa eburna
> POLYCHAETES: Arenicola pusilla, A. claparedii
> WA to British Columbia
>Pinnixa faba
> BIVALVES: Lutraria, Tresus, Schizothaerus, Cardium
> AK to Newport Bay, CA
>Pinnixa franciscana
> SHRIMP: Callianassa, Upogebia; also Urechis caupo, Amphitrite
> San Francisco to Newport, CA
>Pinnixa littoralis
> BIVALVES: Mya, Saxidomus, Tapes
> AK to San Diego, CA
>Pinnixa longipes
> POLYCHAETES: Pectinaria, Pista, Clymarella, Urechis
> CA
>Pinnixa rapax
> ?
> Argentina, Brazil
>Pinnixa sayana
> free-living on sand, also occasionally with Arenicola
> MA to NC; W. Florida, Louisiana
>Pinnixa schmitti
> BIVALVES: Macoma secta, POLYCHAETES: Pista, Amphitrite; SHRIMP:
> Upogebia;also Echiura
> CA to Mazatlan, Mexico
>Pinnixa tubicola
> POLYCHAETES: Serpulidae, Amphitrite, Terebellidae
> AK to San Diego, CA
>Pinnixa tumida
> HOLOTHURIANS: (Para)Caudina chilensis
> China, Japan
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