A new species of <em>Mirocaris</em> (Crustacea:   Decapoda: Caridea: Alvinocarididae) associated with hydrothermal vents on the   Central Indian Ridge, Indian Ocean

Tomoyuki Komai; Joel W. Martin; Krista Zala; Shinji Tsuchida; Jun Hashimoto

doi:10.3989/scimar.2006.70n1109

Autores/as

Tomoyuki Komai Natural History Museum and Institute, Chiba
Joel W. Martin Natural History Museum and Institute, Chiba
Krista Zala Natural History Museum of Los Angeles County
Shinji Tsuchida Japan Agency for Marine-Earth Science Technology (JAMSTEC)
Jun Hashimoto Faculty of Fisheries, Nagasaki University

DOI:

https://doi.org/10.3989/scimar.2006.70n1109

Palabras clave:

Crustacea, Decapoda, Caridea, Alvinocarididae, Mirocaris, especie nueva, Dorsal Central Índica, fuentes hidrotermales

Resumen

Mirocaris indica, una nueva especie de la família caridea Alvinocarididae, se describe basándose en 17 especímenes obtenidos en campos de fuentes hidrotermales de la Dorsal Central Índica cerca de la Triple Convergencia de Rodríguez. La nueva especie es muy parecida al único representante de Mirocaris, la especie atlántica M. fortunata (Martin y Christiansen). Los principales caracteres compartidos incluyen el rostro inerme, aplanado dorsoventralmente, la presencia de epipodios en el tercer maxilípedo hasta el cuarto pereiópodo con correspondientes setobránquias en los pereiópodos primero a quinto, así como la falta de appendices internae en los pleópodos tercero y cuarto. La falta de filas submarginales de cortas a largas sedas rígidas sobre las superfícies externas de los dedos de la primera quela distinguen, no obstante, M. indica de M. fortunata, y pueden reflejar una diferencia en hábitos alimenticios entre las dos especies. Adicionalmente, M. indica alcanza una talla adulta superior a la de M. fortunata.

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