Mannesia, 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 MANNESIA GEN. NOV.

( FIGS 3E, 5G, 6G; TABLES 1 AND 2)

Type species: Chelidonura sabadiega Ortea, Moro & Espinosa, 1996 . By subsequent designation.

Diagnosis: Live animals up to 15 mm in length. Body elongated, narrow; cephalic shield bilobed, lobes quadrangular with straight sides; posterior shield about half length of cephalic shield, with two asymmetrical caudal lobes, the left larger, flat, tail-like, the right minute, triangular, acuminate ( Fig. 3E). Shell of amber- or chestnut colour, spoon-shaped with pointed shoulder protruding slightly above the apex ( Figs 5G, 6G). Radula present, with few rows of teeth (8 × 1.0.1) (autapomorphy); one single lateral tooth on each side, rachidian tooth absent; lateral teeth hook-shaped. Prostate cylindrical, unilobed ( Rudman, 1978; Ortea et al., 1996).

Type locality: El Hierro Island , Canary Islands, Spain .

Etymology: This genus is dedicated to John Kenneth Mannes , husband of Andrea Zamora-Silva, and to the members of the family Mannes .