![](https://sciencepress.mnhn.fr/sites/default/files/periodiques/visuels/grand/zoo_visuel_2019.jpg)
The cirripeds sampled by La Calypso on the Atlantic continental shelf of South America during 1961-1962 include 16 species. These are four scalpellomorphs, Ornatoscalpellum gibberum (Aurivillius), Litoscalpellum henriquecostai (Weber), Diceroscalpellum boubalocerus (Young) and Weltnerium hydrozoaphilum n. sp., one verrucomorph, Verruca minuta n. sp. and 11 balanomorphs,Chelonibia patula (Ranzani), Coronula diadema(Linnaeus), Tetraclita stalactifera (Lamarck), Acasta cyathus Darwin, Megatrema madreporarum (Bosc), Balanus amphitrite Darwin, Balanus venustusDarwin, Balanus trigonus Darwin,
Cirripedia, Thoracica, new species, South America, Atlantic Ocean.