Range extensions of three marine shrimps (Caridea: Alpheidae, Palaemonidae) on the Brazilian coast.

Three caridean shrimps have their distribution range extended on the Brazilian coast. Alpheus carlae Anker, 2012 (Alpheidae), previously reported from Ceará to São Paulo, and Typton fapespae Almeida, Anker & Mantelatto, 2014 (Palaemonidae), previously known only from Rio de Janeiro and São Paulo, are both now reported from Santa Catarina, the new southernmost record of these species in the Atlantic Ocean. Athanas nitescens (Leach, 1813) (Alpheidae), an invasive species from the eastern Atlantic first reported from São Paulo in 2012 based on a single male, is now confirmed to have established populations in Brazil with the finding of ovigerous females on the coast of Rio de Janeiro.

Redescription of - a ubiquitous intertidal hoplonemertean found along the West Coast of North America.

Stimpson, 1857, a barnacle predator, is one of the most common and conspicuous intertidal nemerteans found along the West Coast of North America from Alaska to California, but it is currently referred to by the wrong name. Briefly described without designation of type material or illustrations, the species was synonymized with the Atlantic look-alike, (Johnston, 1837) by Coe. Here we present morphological and molecular evidence that is distinct from .

Hidden diversity: Phylogeography of genus Ototyphlonemertes Diesing, 1863 (Ototyphlonemertidae: Hoplonemertea) reveals cryptic species and high diversity in Chilean populations.

Ototyphlonemertes is a cosmopolitan genus of meiofaunal nemerteans. Their morphological characters are insufficient to reliably identify and delimit species. Consequently, some of the species are considered cosmopolitan despite anticipated low dispersion capability of the adults and a short planktonic larval phase.

Decapod crustaceans from the state of Ceará, northeastern Brazil: an updated checklist of marine and estuarine species, with 23 new records.

The present study is the first major assessment of the marine decapod fauna of Ceará, northeastern Brazil, since contributions of J. Fausto-Filho in the 1960s-1970s. A fully updated checklist of all decapod crustaceans occurring in marine and estuarine habitats of Ceará is provided, based on literature records, specimens held in two carcinological collections of the Universidade Federal do Ceará (UFC), and material collected mainly by the authors between 2011 and 2014.

New records of ribbon worms (Nemertea) from Ceará, Northeast Brazil.

Of 45 species of nemerteans reported for the Brazilian coast, only two were recorded from Brazil's Northeast coast. Here we report seven new records for the state of Ceará, in Northeast Brazil: Tubulanus rhabdotus Côrrea, 1954, Carinomella cf. lactea Coe, 1905, Baseodiscus delineatus (Delle-Chiaje 1825), Cerebratulus cf.