A review of the families and genera of the hyperiidean amphipod superfamily Phronimoidea Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea) Author Zeidler, Wolfgang text Zootaxa 2004 2004-07-14 567 1 66 journal article 4802 10.11646/zootaxa.567.1.1 173cf168-6357-4b76-955f-7b523590ff1d 1175­5334 5259734 41C7D868-7BD9-46F4-94F1-EBEA427E2836 Phrosina semilunata Risso Phrosina semilunata Risso, 1822: 245 . Dactylocera nicaeensis Milne­Edwards, 1830: 393 . Phrosina longispina Bate, 1862: 320–321 , pl. 51, fig. 7. Phrosina pacifica Stebbing, 1888: 1430 . Phrosina australis Stebbing, 1888: 1431 . Type material Type material of P. semilunata is considered lost (see above). Type material of synonyms The holotype female of P. nicaeensis is in the ANSP ( CA 2682 ), in the Guérin­Méneville collection (number unknown): once alcohol preserved, now dry (see Zeidler 1997 ) . Type material of P. longispina could not be found at the BMNH or MNHN and is considered lost. The two syntypes of P. pacifica are in the BMNH (89.5.15.238–239): in spirit . The holotype of P. australis is in the BMNH (89.5.15.240): in spirit . Remarks An examination of the types of P. nicaeensis , P. pacifica and P. australis has confirmed the monotypy of this genus. Whether or not this species is associated with gelatinous plankton has not been determined. Distribution A very common cosmopolitan species, favouring tropical and temperate regions. It often forms local concentrations near the surface but can occur down to 1000 m , rarely deeper ( Vinogradov et al . 1982 ).