Molecular Biology and Genetics
Barcode data: Nembrotha lineolata
There are 2 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Statistics of barcoding coverage: Nembrotha lineolata
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
Nembrotha lineolata is a species of nudibranch, a sea slug, a marine gastropod mollusk in the family Polyceridae. It is found in shallow water in the Indo-Pacific. It was first described in 1905 by the Danish malacologist Rudolph Bergh. The type locality is Selayar Island, Indonesia.
Nembrotha lineolata grows to a length of about 70 millimetres (2.8 in). The body is slender with a rounded head at one end and a pointed tip to the foot at the other. The exterior of the body is covered with longitudinal wrinkles and there is no sharp demarcation between the dorsal surface and the lateral surfaces. The oral tentacles are thick and long and the large conical rhinophores bear about thirty lamellae and can be retracted. The three large pinnate branchial plumes on the dorsal surface are non-retractile and the anus is located between them. The colouring of this nudibranch is variable across the animal's range. The body colour is creamy-white with narrow longitudinal lines, some broken, in varying shades of brown. Sometimes these lines merge in places giving transverse bands of colour. There is a blue or purple stripe running round the margin of the foot and often a yellow one as well. The oral tentacles are blue or purple with a yellow band and the rhinophores are red (sometimes yellow in the Comoros Islands) with blue or purple sheaths.
This is a widespread Indo-Pacific species occurring from the East African coast to Australia, Fiji and the Solomon Islands.  Its range includes Bali, Fiji, Palau, Papua New Guinea, Malaysia, Japan, Kerama Islands, Ryukyu Islands, the Philippines, Australia, the Indian Ocean, the Seychelles, Tanzania and the Comoros Islands.
Nembrotha lineolata has been observed feeding on tunicates such as Oxycorynia fascicularis, Clavelina spp. and Rhopalaea spp.. It can insert its extensible oral tube through the tunicate's siphon and suck out the soft interior.
It lays its eggs in a yellowish-brown spiral ribbon and it is likely that the larvae that hatch out of these are free-swimming veliger larvae and form part of the plankton. Known predators of nudibranchs include fish, crabs, sea spiders and polychaete worms. There have been two instances when a sea anemone in the Edwardsiidae family has been observed attempting to feed on nudibranchs. In one attack on Nembrotha lineolata, the sea slug flinched whenever it was touched by a tentacle but oozed a great deal of mucus and managed to struggle out of reach. It is unclear whether sea anemones normally prey on sea slugs or whether these are unusual occurrences.
- Bouchet, Philippe (2013). "Nembrotha lineolata Bergh, 1905". World Register of Marine Species. Retrieved 2013-11-20.
- Pola, Marta; Cervera, J. Lucas; Gosliner, Terrence M. (2008). "Revision of the Indo-Pacific genus Nembrotha (Nudibranchia: Dorididae: Polyceridae), with a description of two new species". Scientia Marina 72 (1): 145–183. doi:10.3989/scimar.2008.72n1145.
- Rudman, W. B. "Nembrotha lineolata Bergh, 1905". Sea Slug Forum. Australian Museum. Retrieved 2013-11-20.
- Gosliner, T. M.; Behrens, D. W.; Williams, G. C. (1997) Coral Reef Animals of the Indo-Pacific. Monterey, California: Sea Challengers.
- van der Meij, Sancia E. T.; Reijnen, Bastian T. (2012). "First observations of attempted nudibranch predation by sea anemones". Marine Biodiversity 42 (2): 281–283. doi:10.1007/s12526-011-0097-9.
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