MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
New Sclerodactylidae Fauna (Holothuroidea) from the Argentine Sea
Autor/es:
MARIANO IGNACIO MARTINEZ; PABLO ENRIQUE PENCHASZADEH
Lugar:
Rosario Beach
Reunión:
Conferencia; North American Echinoderm Conference; 2011
Institución organizadora:
Walla Walla University
Resumen:
There are 27 species of Holothuroidea reported from Argentine. These species are included on three orders: Apodida, Molpadiida and Dendrochirotida. The later including three families: Psolidae, Cucumariidae and Phyllophoridae, with no register, until now, of Sclerodactylidae. The present work identifies two new species from the family Sclerodactylidae, with distribution on the Argentine Sea. Surrounding the oesophagus, is a ring of large calcareous plates (the calcareous ring), which forms a support for the oesophagus and is a point of insertion for different muscles. This structure has projections in Sclerodactylds and is entire for the ring pieces and divided in few pieces for the projections. Both new species have different podia distribution, representative of two subfamilies. One species is member of the subfamily Sclerodactylinae, with podia all over the body, and the other is a Sclerothyoninae, with podia only on the ambulacra. This is the first report on the family Sclerodactylidae on the Southwestern Atlantic.