title: Taxonomic notes on some Brazilian species of Synalpheus Spence Bate, 1888, with new records and description of a new species (Decapoda, Alpheidae).
abstract: The present report deals with several western Atlantic species of the snapping shrimp genus Synalpheus Spence Bate, 1888 occurring in Brazilian territorial waters. Two species, Synalpheus cf. ruetzleri Macdonald & Duffy, 2006 and Synalpheus yano (Ríos & Duffy, 2007), are recorded from the southwestern Atlantic Ocean and Brazil (Ceará) for the first time; S. yano is also newly reported from the eastern Gulf of Mexico and USA (Florida). Synalpheus androsi Coutière, 1909, a distinctive species previously known in Brazil only from a single unconfirmed record, is confirmed to be present in Brazilian waters based on material from Bahia and Espírito Santo. Synalpheus tenuispina Coutière, 1909, a poorly known species from southern Brazil, is redescribed. Synalpheus ul (Ríos & Duffy, 2007), previously known from Bahia and Alagoas, is reported from Pernambuco based on older "Calypso" material misidentified as Synalpheus longicarpus (Herrick, 1891). A new species from the Synalpheus paraneptunus Coutière, 1909 complex is described as Synalpheus maxillispinus sp. nov. based on three specimens dredged from moderate depths (15-55 m) off southern Bahia and Espírito Santo, eastern Brazil. Finally, an incomplete specimen that appears to belong to a species presently unknown in Brazil is preliminarily reported as Synalpheus sp. gambarelloides group. Illustrations are provided for all reported taxa except for S. ul.
authors.affiliation: Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227, Republic of Singapore; Email: arthuranker7@yahoo.com.
authors.forename: Arthur
authors.initials: A
authors.lastname: Anker
authors.affiliation: Laboratório de Invertebrados Marinhos do Ceará, Departamento de Biologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil; Email: unknown.
authors.forename: Paulo P G
authors.initials: PP
authors.lastname: Pachelle
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D001267:Atlantic Ocean; D001938:Brazil; D033364:Decapoda / Q000033:anatomy & histology / Q000145:classification*; D017753:Ecosystem; D005260:Female; D008297:Male