Home Introduction What is an ostracod? World species list Southern Ocean list About the authors Bibliography Acknowledgements Links Last updated 14 March 2008 Southern Ocean list > Paraconchoecia hirsuta > Notes Paraconchoecia hirsuta Drawings   Maps Download species PDF Paraconchoecia hirsuta (Müller, G.W., 1906) Records: 30 There are two very similar mesopelagic species of Paraconchoecia that can only be reliably differentiated by the presence (P. hirsuta) or absence (P. aequiseta) of a cluster long fine hairs on the a seta of the endopodite of the male second antenna. At present there is no reliable way of distinguishing females. All the males we have examined from the Southern Ocean have proved to be P. hirsuta, so we have assumed that all female records of aequiseta/hirsutafrom the Southern Ocean are this species, although in other regions the two species have been reported to co-occur. So the taxonomic status of these forms needs critical evaluation. Southern Ocean n Mean mm s.d. Range mm Female 75 3.37 0.084 3.08-3.52 Male 51 2.89 0.052 2.76-3.00 A-1