Berthellina delicata ( Pease, 1861 )

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 : 10

publication ID	https://doi.org/10.11646/zootaxa.4359.1.1
publication LSID	lsid:zoobank.org:pub:8D06174D-B19F-4B5C-B9B0-DA74E6D43C75
DOI	https://doi.org/10.5281/zenodo.6025725
persistent identifier	https://treatment.plazi.org/id/03EB87A2-FFD9-FF8D-9790-FF5DFB15FC62
treatment provided by	Plazi (2017-12-01 10:00:15, last updated 2024-11-28 18:37:34)
scientific name	Berthellina delicata ( Pease, 1861 )
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Treatment

Berthellina delicata ( Pease, 1861) species complex

( Figures 2 B–D View FIGURE 2 )

Material examined. Twelve specimens. MB28-005057, ZWH, 5 Dec. 2011, 16m, 40mm; MB28-005058, ZRP, 0 7 Jun. 2012, 2m, 30mm; MB28-00 5059, ZRP, 0 7 Jun. 2012, 1m, 28mm; MB28-005060, ZRP, 0 7 Jun. 2012, 2m, 30mm; MB28-005061, ZRP, 26 May 2013, 1m, 30mm; MB28-005062, ZAR, 35m, 20mm; MHN-YT1013, VIS3, 12 Nov. 2013, 5m, 18mm; MB28-005063, VIS3, 12 Nov. 2013, 5m, 14mm; MB28-005 0 64, POA, 0 8 May 2014, 41m, 18mm; MB28-005065, NCh6, 0 5 Jun. 2014, 3m, 21mm; ZMBN105155, 21 May 2015, VIAIR, 2spcs., 4m, 12–26mm.

Habitats. Subtropical tidal reefs, rocky reefs and tropical coral reefs and bommies.

Occurrences. Ponta do Ouro, Zavora, Nuarro and Vamizi Island.

Geographic distribution. Indo-west, central Pacific. Hawaii, Midway Atoll (Gosliner et al. 2008), Japan ( Baba 1949), Papua New Guinea, Seychelles, Réunion Island (Gosliner et al. 2008) and Mozambique ( Martens 1879).

Remarks. Three-colour morphotypes were found: yellowish with a delicate reticulated pattern on the dorsum ( Fig. 2 B View FIGURE 2 ); a translucent yellow body with low yellow tubercles ( Fig. 2 C View FIGURE 2 ); and an orange body with white specks ( Fig. 2 D View FIGURE 2 ). The variety of habitats, depths and specimen colours suggest that the animals collected here probably represent a complex of species. The systematics of Berthellina from the Indo-Pacific are in need of a comprehensive review ( Cervera et al. 1999; Moustafa et al. 2016), because this taxon is indistinguishable by external characteristics alone ( Gardiner 1936; Gosliner et al. 2008; Alvim & Pimenta 2015).

References

Alvim, J. & Pimenta, A. D. (2015) Taxonomic review of Berthella and Berthellina (Gastropoda: Pleurobranchoidea) from Brazil, with description of two new species. Zoologia, 32, 497 - 531. https: // doi. org / 10.1590 / s 1984 - 46702015000600010

Baba, K. (1949) Opisthobranchia of Sagami Bay. Iwanami Shoten, Tokyo, 149 pp.

Cervera, J. L., Gosliner, T. M. & Garcia-Gomes, J. C. (1999) The systematics of Berthellina: many varieties of oranges. In: Abstracts of the Systematics, Phylogeny and Biology of Opisthobranch Molluscs. 2 nd International Workshop of Malacology, Menfi, June 10 - 14, 1999. Istituzione Culturale Federico II °, Menfi, pp. unumbered.

Gardiner, A. P. (1936) Engel's paper on The English species of the family Pleurobranchidae. Journal of Conchology, 20, 195 - 198.

Martens, E. von (1879) Ubersicht der von Peters 1843 - 1847 in Mossambique gesammelten Molluska vol 1879. In: Monatsberichte der Koniglichen Preussischen. Vol. 31. Akademie der Wissenschaften zu Berlin, Berlin, pp. 727 - 749.

Moustafa, A. Y., Golestani, H. & Valdes, A. (2016) A review of the genus Berthellina (Mollusca: Heterobranchia: Pleurobranchidae) in the Red Sea based on molecular and anatomical data. Marine Biodiversity, August 2016, 1 - 14. https: // doi. org / 10.1007 / s 12526 - 016 - 0558 - 2

Pease, W. H. (1861) Descriptions of new species of mollusca from the Pacific Islands. Proceedings of the Zoological Society of London, 29 (1), 242 - 246.

Figures

FIGURE 2. A, Berthella martensi (MB28-004607). B–D, Berthellina delicata species complex (MB28-005057, MB28- 004578, MB28-005060, respectively). E, Berthellina sp. (MB28-005016). F, Pleurobranchaea brockii (in situ). G, Pleurobranchus albiguttatus (MB28-004603). H–I, Pleurobranchus forskalii (MB28-004434 and MHN-YT1655, respectively). J, Pleurobranchus grandis (in situ). K–L, Pleurobranchus peronii (MHN-YT276 and MB28-005042, respectively).