Biuve sp. #4
|Maximum size: 30 mm.
species is superficially similar to Biuve cf. fulvipunctata.
its white patches are more diffuse, it lacks any sign of longitudinal
lines and it lacks a central orange spot on the front of its head. It
also reaches a larger size and has a more elongate internal shell with
a larger protoconch and no brown tint at the apex.
a rare species found in moderately exposed rocky habitats. It is known
from tide pools and subtidally to 15 m (50 ft). It shows a nocturnal
pattern when held in a dish and, unlike B. cf. fulvipunctata, produces
extensive defensive mucus when handled.
Oahu, Maui and Lanai.
This species was first
recorded in Hawaii from Maliko Bay, Maui by PF on May 23, 1992. Manuel Malaquias suggested that it's a Biuve and stated that its inclusion as a Mannesia in Table 1 of Zamora-Silva & Malaquias (2017) was erroneous. (pers. com.) It's also been listed in some sources as a Chelidonura and Navanax.
Photo: PF: 30
mm: Maliko Bay, Maui; May 23, 1992.
Observations and comments:
1: ( )