On Oswaldella billardi Briggs, 1938 and O. erratum spec, nov., two antarctic hydroid species (Cnidaria, Hydrozoa)

• Main Authors: Pe\xc3\xb1a Cantero, A.L., Vervoort, W.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 1997
• Subjects: Cnidaria; Hydrozoa; hydroids; Oswaldella; new species; Antarctic; Briggs; Antarc*
• Online Access: https://repository.naturalis.nl/pub/318245

The type material of Oswaldella billardi Briggs, 1938, has been re-examined and a complete description and figures are presented. The study of that material has allowed to reconsider the systematic position of all the material previously assigned to O. billardi and to determine that part of it belongs to another species. Since it is clearly different from the remaining species of the genus, it is described as Oswaldella erratum spec. nov.\nResumen: Se ha revisado y redescrito el material tipo de Oswaldella billardi Briggs, 1938. Su estudio ha permitido reconsiderar la posici\xc3\xb3n sistem\xc3\xa1tica de todo el material anteriormente asignado a O. billardi y, as\xc3\xad, determinar que parte del mismo pertenece a otra especie. Ya que dicha especie es claramente diferente de las otras especies del g\xc3\xa9nero, se describe como Oswaldella erratum spec. nov.