Crinoniscus Perez, 1900

Hosie, Andrew M., 2008, Four new species and a new record of Cryptoniscoidea (Crustacea: Isopoda: Hemioniscidae and Crinoniscidae) parasitising stalked barnacles from New Zealand, Zootaxa 1795, pp. 1-28 : 4

Crinoniscus Perez, 1900

Type species: Crinoniscus equitans Perez, 1900 ; by monotypy.

Composition: Crinoniscus equitans Perez, 1900 ; C. cephalatus sp. nov.; C. politosummus sp. nov.

Diagnosis: See Remarks.

Remarks: The type species was originally described from the Gulf of Gascoigne, France, as a parasite of the shallow water barnacle Perforatus perforatus ( Darwin, 1854), and redescribed by Bocquet-Vedrine (Bocquet-Vedrine 1985, 1987). As suggested by Bocquet-Vedrinev & Bocquet (1972) L. alepadis should probably be placed within the Crinoniscidae and Gruvel’s (1902) generic placement seems to have been made solely on the basis of the host species— Paralepas minuta Philippi, 1832 —being a pedunculate barnacles as in the case in the other members of the genus Leponiscus . Until further material can be studied L. alepadis is regarded as species inquirendum.

The diagnosis of this genus is presently the same as that for the family because the only known specimen of Proteolepas bivincta is a juvenile female and currently indistinguishable from juvenile female’s of Crinoniscus .