Phrosina semilunata Risso

Zeidler, Wolfgang, 2004, A review of the families and genera of the hyperiidean amphipod superfamily Phronimoidea Bowman & Gruner, 1973 (Crustacea: Amphipoda: Hyperiidea), Zootaxa 567, pp. 1-66 : 18-19

publication ID	https://doi.org/ 10.11646/zootaxa.567.1.1
DOI	https://doi.org/10.5281/zenodo.5030001
persistent identifier	https://treatment.plazi.org/id/03931615-EC61-FFE3-FEDF-FA71FD15FCC8
treatment provided by	Felipe
scientific name	Phrosina semilunata Risso
status

Treatment

Phrosina semilunata Risso View in CoL

Phrosina semilunata Risso, 1822: 245 View in CoL .

Dactylocera nicaeensis MilneEdwards, 1830: 393 .

Phrosina longispina Bate, 1862: 320–321 View in CoL , pl. 51, fig. 7.

Phrosina pacifica Stebbing, 1888: 1430 View in CoL .

Phrosina australis Stebbing, 1888: 1431 View in CoL .

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).