Facelina lineata Eliot, 1905

Tibiriçá, Yara, Pola, Marta & Cervera, Juan Lucas, 2017, Astonishing diversity revealed: an annotated and illustrated inventory of Nudipleura (Gastropoda: Heterobranchia) from Mozambique, Zootaxa 4359 (1), pp. 1-133 : 111

Facelina lineata Eliot, 1905

( Figure 34 J )

Material examined. One specimen. MB28-004752, ZDTR, 20 Oct. 2013, 0.3m, 12mm.

Habitats. Subtropical tidal reef.

Occurrences. Zavora.

Geographic distribution. Indo-west Pacific. Australia ( Burn 2006), Tanzania (Eliot 1905), Mozambique.

Remarks. This specimen matches Eliot’s (1904d) description of Facelina lineata with three orange marks on the head, black rhinophores and a subapical orange band on the cerata. The only differing feature is the shape of the rhinophores. Eliot’s (1904d) description mentions rhinophores with annulae (pl. XVI, fig. 4 and Pl. XVII, fig.10) based on field notes from Crossland, however Eliot (1904d) notes that this characteristic could not be seen. In the Mozambican specimen the rhinophores exhibit small annulae, which can only be seen with careful examination. In the same plate, Crossland illustrated a second species described as Hervia lineata , which is now known as Cuthona lineata . Rudman (2009b) suggested that Facelina lineata was likely to belong to the genus Cratena and would need to be reviewed and renamed. Interestingly WoRMS ( Bouchet 2015b) place Facelina lineata as synonym of Cratena lineata however no formal reference was provided. This has the potential to create confusion between the two species described by Eliot (1904d). Therefore, pending a review, we use the name Facelina lineata for this species.

Figures

FIGURE 34. A, Cerberilla ambonensis (ZMBN105583). B, Cerberilla sp. ZMBN105157. C, Limenandra confusa (MB28- 004710). D–E, Caloria indica (MB28-004832 and MB28-004581, respectively). F, Cratena cf. affinis (MB28-004427). G. Cratena cf. lineata (MB28-004438). H. Cratena simba (MB28-004600). I, Cratena sp. (MB28-004572). J, Facelina lineata (MB28-004752).K, Facelina rhodopos (MB28-004887). L, Favorinus japonicas (MB28-004824).