Biuve, Zamora-Silva & Malaquias, 2018

Zamora-Silva, Andrea & Malaquias, Manuel António E., 2018, Molecular phylogeny of the Aglajidae head-shield sea slugs (Heterobranchia: Cephalaspidea): new evolutionary lineages revealed and proposal of a new classification, Zoological Journal of the Linnean Society 183, pp. 1-51 : 38

GENUS BIUVE GEN. NOV.

( FIGS 3B, 5I; TABLES 1 AND 2)

Type species: Chelidonura fulvipunctata Baba, 1938 . By subsequent designation.

Diagnosis: Live animals up to 30 mm in length. Body narrow, elongate, flat; cephalic shield larger than the posterior shield; anterior edge of cephalic shield trilobed, lobes rounded; posterior shield with two asymmetrical caudal lobes, right one short, nearly inconspicuous, and rounded, left prolonged, thin, flagellum-like. Whitish W-shaped mark on cephalic region (autapomorphy) ( Fig. 3B). Shell spoon-shaped with prolonged, semi-wide open whorl, solid, yellowish-white, oldest region brown ( Fig. 5I). Buccal bulb reduced; penial papilla cylindrical, longer than prostate; prostate with single lobe, short and rounded ( Baba, 1938; Rudman, 1974; Gosliner, 1987).

Type locality: Kii , Japan .

Etymology: The name stems from the presence of a W-shape mark on the head region of animals (Lat. bi = two or double; ‘uve’ Spanish name for letter ‘v’).