Paraheteromastus tenuis   Monro,  1937 (Marine Worm)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Annelida
Class: Polychaeta
Order:Capitellida
Family:Capitellidae

Description
Size: 20-50 mm. long by 0.5 mm. 140 segments.

Prostomium conical, without eyes. First four setigerous segments carry only short widely bordered capillary bristles, the remaining seven thoracic segments with large hooks. Abdominal hooks smaller the the thoracic. The body in the abdominal region is externally almost as featureless and homogeneous as that of an Oligochaete. The parapodial ridges are not well developed.

The body swells out in the anterior thoracic region. Division between thorax and abdomen not conspicuous. Prostomium short, conical, without eyes. The first 4 setigerous segments carry only short, widely bordered capillary bristles. The remaining 7 thoracic segments carry only rather large hooks with narrow stems and long guards. The abdominal hooks are smaller than the thoracic and have a subterminal enlargement and shorter and more rounded guards.

The body in the long abdominal region is externally almost as featureless and homogeneous as that of an Oligochaete. The parapodial ridges are very little developed. In the hindmost part they are represented by a slight swelling of the segments in the dorso-lateral and ventro-lateral regions. There are no branchiae and the hinder abdominal segments are not campanulate. A short pygidial cirrus.


Synonym (s)
Paraheteromastus tenuis Fauvel, 1953

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Benthic, Estuarine, Muddy, Coastal
Trophic Level:  Consumer
Prey:  Detritus

Biogeography


• Kerala, Ashtamudi Lake INDIA
• Kerala, Kochi Backwaters INDIA (Record: 1981)
• Kerala, Beypore Estuary INDIA
• Gujarat, Auranga Estuary INDIA
• Gujarat, Narmada Estuary INDIA
• West Bengal, Medinipur, Sankarpur INDIA (Record: 07/2000-06/2002)
• Kerala, Kochi Estuary INDIA (Record: 03/1974-03/1976)
• West Bengal, Sundarbans INDIA (Record: 1983)
• Kerala, Kochi INDIA (Record: 1981,1994, 1995, 2005)
• Maharashtra, Mahim Creek (Lat: 19.03) (Long: 72.82) INDIA (Record: 11/1979-12/1980)
• Maharashtra, Bassein creek-coastal system INDIA (Record: 1985-1986)
• West Bengal, Sagar Island, Gangasagar INDIA
• Kerala, Kasargod INDIA (Depth: 5-15 mts)
• Kerala, Kannur INDIA (Depth: 5-15 mts)
• Kerala, Calicut INDIA (Depth: 5-15 mts)
• Kerala, Alleppey INDIA (Depth: 5-15 mts)
• Kerala, Kollam INDIA (Depth: 5-15 mts)
• Kerala, Vizhinjam INDIA (Depth: 5-15 mts)
• Tamil Nadu, Ennore INDIA (Depth: 5-15 mts)
• Tamil Nadu, Nagapattinam INDIA (Depth: 5-15 mts)
• Maharashtra, Mumbai Port INDIA (Record: 11/1996-12/1996)
• Goa, Mandovi and Zuari Estuary INDIA
• Karnataka, Kali Estuary INDIA
• West Coast, Mulki Estuary INDIA
• Kerala, Korapuzha Estuary INDIA

Literature Source(s)
  • Khan, AS and Murugesan, P (2005) Polychaete diversity in Indian estuaries Indian Journal of Marine Sciences National Institute of Science Communication And Information Resources, CSIR, New Delhi, India, in association with Indian National Science Academy, New Delhi, INDIA 34(1) 114-119 Available at - http://nopr.niscair.res.in/handle/123456789/1548
  • Kumar, RS (2002) Biomass, horizontal zonation and vertical stratification of polychaete fauna in the littoral sediment of Cochin estuarine mangrove habitat, south west coast of India Indian Journal of Marine Sciences CSIR, New Delhi 31 100-107 Available at - NIO, RC Kochi
  • Kumar, RS (1995) Macrobenthos in the mangrove ecosystem of Cochin backwaters, Kerala (southwest coast of India) Indian Journal of Marine Sciences CSIR, New Delhi 24 56-61 Available at - NIO, RC Kochi
  • Chandra, A and Chakraborty, SK (2008) Distribution, density and community ecology of macrobenthic intertidal polychaetes in the coastal tract of Midnapore, West Bengal, India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 50(1) 7-16 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Pillai, NGK (2001) On some benthic polychaetes from Cochin Estuary Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 43(1&2) 120-135 Available at - NIO, Goa
  • Kumar, RS (2001) Biodiversity and affinity of polychaetous annelids within the mangrove ecosystem of Indo-Pacific region Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 43(1&2) 206-213 Available at - NIO, Goa
  • Varshney, PK and Govindan, K (1995) Macrobenthos off Mahim (Bombay), west coast of India in relation to coastal pollution and aquaculture Journal of Indian Fisheries Association Indian Fisheries Association 25 47-56 Available at - http://hdl.handle.net/2264/395
  • Mathew, A and Govindan, K (1995) Macrobenthos in the nearshore coastal system of Bombay Proceedings of the National Academy of Sciences, India (B: Biological Sciences) National Academy of Sciences, India 65 (IV) 411-430 Available at - http://hdl.handle.net/2264/2286
  • Sarala Devi, K., Jayalakshmi, KV and Venugopal, P. (1991) Communities and coexistance of benthose in northern limb of Cochin backwaters Indian Journal of Marine Sciences 20 249-254 Available at - NIO, Goa
  • Sarkar, SK; Bhattacharya, A; Giri, S; Bhattacharya, B; Sarkar, D; ChandraNayak, D and Chattopadhaya, AK (2005) Spatiotemporal variation in benthic polychaetes (Annelida) and relationships with environmental variables in a tropical estuary Wetlands Ecology and Management 13 55-67 Available at - http://www.springerlink.com/content/p75t787x75032651/fulltext.pdf
  • Fauvel, P (1953) The fauna of India including Pakistan, Ceylon, Burma and Malaya: Annelida, Polychaeta The Indian press ltd., Allahabad 507 pp Available at - NIO, Goa
  • Devi, KS; Sheba, P; Balasubramanian, T; Venugopal, P and Sankaranarayanan, VN (1996) Benthic fauna of southwest and southeast coasts of India The Fourth Indian Fisheries Forum Proceedings, Kochi, Kerala Asian Fisheries Society, Indian Branch, Mangalore 9-12 Available at - http://drs.nio.org/drs/bitstream/2264/1839/2/Fourth_Indian_Fish_Forum_Proc_1999_9.pdf
  • Sukumaran, S and Devi, KS (2009) Polychaete diversity and its relevance in the rapid environmental assessment of Mumbai Port Current Science Current Science Association in collaboration with the Indian Academy of Sciences 97(10) 1439-1444 Available at - http://drs.nio.org/drs/bitstream/2264/3456/1/Curr_Sci_97_1439.pdf
  • Martin, GD; Nisha, PA; Balachandran, KK; Madhu, NV; Nair, M; Shaiju, P; Joseph, T; Srinivas, K; and Gupta, GVM (2011) Eutrophication induced changes in benthic community structure of a flow-restricted tropical estuary (Cochin backwaters), India Environ Monit Assess Springer Science 176 427–438 Available at - http://dx.doi.org/10.1007/s10661-010-1594-1

Page last updated on:2011-04-26

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