Califarcturus, Poore, Gary C. B., 2015

Poore, Gary C. B., 2015, Thermoarcturidae, a new crustacean family of three genera (Isopoda: Valvifera), Zootaxa 4007 (3), pp. 409-418 : 411

Califarcturus n. gen.

Type species. Microarcturus tannerensis Schultz, 1966 , herein designated and by monotypy.

Diagnosis. Head, pereonites and all pleonites each with transverse rows of submedian, sublateral and lateral tubercles bearing bead-like spheres; pleotelson with short oblique lateral tubercles. Eyes absent. Male pleopod 1 exopod with well defined groove opening at notch about three-quarters along, without ventral tooth.

Etymology. For California, combined with Arcturus , a commonly used genus stem.

Remarks. Microarcturus tannerensis Schultz, 1966 has remained without a valid genus name for almost 50 years, Microarcturus being a nomen nudum ( Poore 2003). The species is still known only from its holotype. Its unique male pleopod 1 does not allow it to be placed in any known valviferan genus. The setation of pereopods 2– 4 excludes the species from Antarcturidae and other similar families.