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A new marine gastrotrich from the State of Sao Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae).


ABSTRACT: In previous papers, faunistic and preliminary taxonomic data on the gastrotrich communities along the coastline of the Brazilian states of São Paulo and Rio de Janeiro were reported; among the over 40 records, the occurrence of several species new to science was highlighted. One of such new taxa is described here based on observation carried out on living and SEM prepared specimens. Pseudostomella dolichopodasp. n. (Gastrotricha: Thaumastodermatidae) is the only species in the genus that attains 420 µm in total length, is covered by pentancres and possesses, among others, caudal pedicles up to 45 µm in length. Additional differences with co-generic taxa characterized by a pentancrous covering are discussed. Furthermore, a key to the described Pseudostomella species of the world based on easily discernible traits, visible in both living and formalin-fixed specimens, is provided.

SUBMITTER: Todaro MA 

PROVIDER: S-EPMC3459026 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae).

Todaro M Antonio MA  

ZooKeys 20120926 223


In previous papers, faunistic and preliminary taxonomic data on the gastrotrich communities along the coastline of the Brazilian states of São Paulo and Rio de Janeiro were reported; among the over 40 records, the occurrence of several species new to science was highlighted. One of such new taxa is described here based on observation carried out on living and SEM prepared specimens. Pseudostomella dolichopodasp. n. (Gastrotricha: Thaumastodermatidae) is the only species in the genus that attains  ...[more]

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