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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Morphology and DNA analyses reveal a new cryptic snapping shrimp of the Alpheus heterochaelis Say, 1818 (Decapoda: Alpheidae) species complex from the western Atlantic

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Almeida, Alexandre O. [1] ; Terossi, Mariana [2] ; Mantelatto, Fernando L. [2]
Total Authors: 3
[1] Santa Cruz State Univ UESC, Dept Biol Sci, BR-45662900 Ilheus, BA - Brazil
[2] Univ Sao Paulo, LBSC, Dept Biol, Grad Program Comparat Biol, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, BR-14040901 Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ZOOSYSTEMA; v. 36, n. 1, p. 53-71, 2014.
Web of Science Citations: 18

Previous evidence regarding morphology led us to examine an exhaustive set of specimens assigned to Alpheus heterochaelis Say, 1818 and closely allied species, in order to test for the existence of possible cryptic taxa. The analysis of material assignable to this species from the states of Para, Bahia and Sao Paulo in Brazil, and from Venezuela and Colombia revealed minor morphological differences between these specimens and others that could be confidently identified as A. heterochaelis from the eastern USA coast and the Gulf of Mexico, such as the absence of spiniform setae on the ischium of the fifth pereiopods (vs present in A. heterochaelis s.s.). Additionally, genetic analysis using the ribosomal 16S subunit also indicated levels of genetic difference supporting the existence of a cryptic species and revealing that A. heterochaelis is, in fact, a species complex. Thus, a new species, A. petronioi n. sp. is described and illustrated for the material from northern South America and Brazil. The new species is also compared with other, similar species of Alp h eus Fabricius, 1798 in terms of morphology and DNA sequences in a phylogenetic context. (AU)

FAPESP's process: 09/54931-0 - Improvement and management of biological specimen collections at the Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo
Grantee:Carlos Alberto Garofalo
Support type: Research Infrastructure Program - Biological specimen collections
FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
Grantee:Fernando Luis Medina Mantelatto
Support type: BIOTA-FAPESP Program - Thematic Grants