Main Article Content
Halgerda dalanghita Fahey & Gosliner, 1999, a discodoridid nudibranch was reported from Havelock Island of Ritchieâ€™s Archipelago representing a new addition to the Opisthobranch fauna of India. This species is characterized by a firm, bright orange coloured mantle with a network of angular ridges on the dorsum that is ornate with white lines and dots; rhinophores with 17 brown lamellae on a translucent white stalk; highly pinnate gills with eight branchial leaves. The present record extends the known geographical distribution of H. dalanghita and this is the sixth species representing the genus in India.Â
Authors own the copyright to the articles published in JoTT. This is indicated explicitly in each publication. The authors grant permission to the publisher Wildlife Information Liaison Development (WILD) Society to publish the article in the Journal of Threatened Taxa. The authors recognize WILD as the original publisher, and to sell hard copies of the Journal and article to any buyer. JoTT is registered under the Creative Commons Attribution 4.0 International License (CC BY), which allows authors to retain copyright ownership. Under this license the authors allow anyone to download, cite, use the data, modify, reprint, copy and distribute provided the authors and source of publication are credited through appropriate citations (e.g., Son et al. (2016). Bats (Mammalia: Chiroptera) of the southeastern Truong Son Mountains, Quang Ngai Province, Vietnam. Journal of Threatened Taxa 8(7): 8953–8969. https://doi.org/10.11609/jott.2718.104.22.16853-8969). Users of the data do not require specific permission from the authors or the publisher.
Apte, D.A. (2009). Opisthobranch fauna of Lakshadweep Islands, India with 52 new records to Lakshadweep and 40 new records to India. Journal of the Bombay Natural History Society 106(2): 162â€“175.
Bouchet, P. (2015). Discodorididae Bergh, 1891. In: MolluscaBase (2015). World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=1761. Accessed on 25 June 2015.
Bouchet, P. & S. Gofas (2015). Halgerda. In: MolluscaBase (2015). World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=205320. Accessed on 26 June 2015.
Fahey, S.J. & T.M. Gosliner (1999). Descriptions of three new species of Halgerda from the Western Indian Ocean with a redescription of Halgerda formosa Bergh 1880. Proceedings of the California Academy of Sciences 51(8): 365â€“383.
Oâ€™donoghue, C.H. (1932). Notes on Nudibranchiata from southern India. Proceedings of the Malacological Society of London 20:141â€“166.
Prasade, A., V. Bhave, D. Apte & P. Kale (2012). A review of discodorid opisthobranch molluscs along Indian coasts. Proceedings of the National Seminar on Biodiversity and conservation of coastal and marine ecosystems of India, 74â€“79pp.
Ramakrishna, C.R. Sreeraj, C. Raghunathan, C. Sivaperuman, J.S. Yogesh-Kumar, R. Raghuraman, T. Immanuel & P.T. Rajan (2010). Guide to Opisthobranchs of Andaman and Nicobar Islands. Zoological Survey of India, 196pp.
Sreeraj, C.R., P.T. Rajan, R. Raghuraman, C. Raghunathan, R. Rajkumar, T. Immanuel & Ramakrishna (2010). On some new records of sea slugs (Class: Gastropoda, Subclass: Opisthobranchia) from Andaman and Nicobar Islands, pp 289â€“298. In: Raghunathan, C., C. Sivaperuman & Ramakrishna (eds.). Recent Trends in Biodiversity of Andaman and Nicobar Islands. Zoological Survey of India, Kolkata.