A new species of sea squirt Rhopalaea bilobata (Ascidiacea: Diazonidae) from the Andaman Islands, India

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Jhimli Mondal
http://orcid.org/0000-0003-1137-2945
C. Raghunathan
http://orcid.org/0000-0003-1417-5496
Tamal Mondal
http://orcid.org/0000-0003-4966-6746

Abstract

Rhopalaea bilobata, a new species of the class Ascidiacea, under the family Diazonidae has been described from the Andaman Islands of Andaman & Nicobar, India.  The species was found in sandy bottoms, reef areas and artificial structures at a depth range of 10–40 m.  This species has bilobed anal border, six lobed branchial and atrial siphons, transparent thorax with pigmented spots at the anus, between the two siphons and at the anterior end of endostyle, and ramified basal test.  The species is closely related to R. idoneta, R. macrothorax and R. tenuis in several sets of anatomical and morphological features.

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How to Cite
[1]
Mondal, J., Raghunathan, C. and Mondal, T. 2017. A new species of sea squirt Rhopalaea bilobata (Ascidiacea: Diazonidae) from the Andaman Islands, India. Journal of Threatened Taxa. 9, 5 (May 2017), 10187–10193. DOI:https://doi.org/10.11609/jott.2620.9.5.10187-10193.
Section
Short Communications

References

Ananthan, G. (2014). Diversity and Ecology of Sedentary Ascidians of the Great Nicobar Biosphere Reserve. First Year Progess Report, 103pp.

Ananthan, G., C. Stalin & C. Raghunathan (2015). A new record of ascidians in Indian waters, from the Great Nicobar Biosphere Reserve, Andaman and Nicobar Islands. Marine Biodiversity Records 8: 1–5.

Herdman, W.A. (1880). Preliminary report on the TUNICATA of the “Challenger†Expedition. The Royal Rociety of Edinburgh Proceedings 10: 458–472.

Kott, P. & I. Goodbody (1980). The Ascidians of Hong Kong, pp. 503–554. In: Morton, B. & C.K. Tseng (eds.). Proceedings of the First International Marine Biological Workshop: The Marine Flora and Fauna of Hong Kong and Southern Chaina. Vol. 1. Introduction and Taxonomy. Hong Kong University Press.

Kott, P. (1990). The Australian Ascidiacea. Part 2. Aplousobranchia (1). Memoirs of Queensland Museum 29(1): 1–298.

Kott, P. (2006). Observations on non-didemnid ascidians from Australian waters (1). Journal of Natural History 40(3): 169–234; http://doi.org/10.1080/00222930600621601

Meenakshi, V.K., T.K. Renganathan, S. Sentharamarai & J. Jeyalakshmi (2003). Marine Biodiversity - Taxonomy of Indian Ascidians. Technical Report, 38pp.

Mondal, J., C. Raghunathan & T. Mondal (2015). Diversity and Distribution of common ascidians of Andaman group of Islands. Middle East Journal of Scientific Research 23(10): 2411–2417.

Mondal, J., C. Raghunathan, T. Mondal & K. Chandra (2017). Reef Associated ascidians of Andaman and Nicobar Islands. Records of Zoological Survey of India, Occasional No. 384: 1-108.

Monniot, C. (1997). Ascidies phlebobranches du canal du Mozambique. Zoosystema 19(4): 557–571.

Monniot, F. & C. Monniot (2001). Ascidians from the tropical western Pacific. Zoosystema 23: 201–383.

Monniot, F. & C. Monniot (2008). Compléments sur la diversité des ascidies (Ascidiacea, Tunicata) de l’ouest Pacifique tropical. Zoosystema 30(4): 799–872.

Pérès, J.M. (1958). Ascidies de la Baie de Haifa Collectées par E. Gottlieb. Bulletin of the Research Council Of Israel 78: 151–164.

Satoh, N. (2009). An advanced filter-feeder hypothesis for urochordate evolution. Zoological Science 26(2): 97–111.

Shenkar, N. (2008). Ecological aspects of the ascidian community along the Israeli coasts. PhD Thesis. Tel-Aviv University, Israel, 122pp.

Shenkar, N. (2013). A new species of the genus Rhopalaea (Class: Ascidiacea) from the Red Sea. Zootaxa 3599(1): 051–058.

Shenkar, N., G. Koplovitz, L. Dray, C. Gissi & D. Huchon (2016). Back to

solitude: Solving the phylogenetic position of the Diazonidae using molecular and developmental characters. Molecular Phylogenetics and Evolution 100: 51–56.

Shenkar, N., A. Gittenberger, G. Lambert, M. Rius, R.M. Rocha, B.J. Swalla & X. Turon (2017). Ascidiacea World Database. Accessed at http://www.marinespecies.org/ascidiacea on 2016-12-14

Sluiter, C.P. (1904). Die Tunicaten der Siboga-Expedition. Part-I: Die socialen und holosomen Ascidien. Siboga Expedition 56(A): 1–139.

Tokioka, T. (1953). Contribution to Japanese ascidian fauna. 5. Ascidians collected near the Marine Biological Laboratory of Hiroshima University in the Inland Sea. Publications of the Seto marine biological Laboratory 3(1): 1–25.

Tokioka, T. (1971). A new species of Rhopalaea from the Pacific Coast of Costa Rica (Tunicata, Ascidiacea). Publications of the Seto marine biological Laboratory XIX(2/3): 119–122.

van Name, W.G. (1921). Ascidians of the West Indian Region and Southern United States. Bulletin American Museum of Natural History XLIV: 283–494.

Vazquez, E. & C.M. Young (1996). Rhopalaea cloneyi (Ascidiacea, Cionidae), a new deep-water ascidian from the coastal waters of British Columbia. Journal of Zoology, London 238: 599–610.

Venkataraman, K., C. Raghunathan, R. Raghuraman, & C.R. Sreeraj (2012). Marine Biodiversity in India. Zoological Survey of India, Kolkata, 168pp.

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