Blackfordia virginica   Mayer,  1910 (Hydrozoan)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Cnidaria
Class: Hydrozoa
Order:Leptothecata
Family:Blackfordiidae

Description
Umbrella diameter varies from 4 to 11 mm and with rounded apex. Tentacles 72-88 in number, finger-shaped, diverticula from the tentacle bulbs present at base of all the tentacles. Marginal vesicle present between each successive pair of tentacles. Black pigment granules adjacent to statocyst absent. Stomach half as long as bell cavity and with four long lips. Gonads surround the radial canals completely and not divided by a median line on their subumbrellar surface.


Synonym (s)
Blackfordia virginica Mayer, 1910
Blackfordia virginica Kramp, 1987

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Pelagic, Estuarine

Biogeography


• Andaman and Nicobar Islands (Lat: 10) (Long: 93) INDIA
• Maharashtra, Dharamtar Estuary (Lat: 18.75) (Long: 72.84) INDIA
• Goa, Mandovi and Zuari Estuary INDIA
• West Bengal, Salt Lake INDIA (Record: 08/05/1926)
• Kerala, Aroor (Lat: 9.9) (Long: 76.28) INDIA (Record: 01/ 1968, 02/1968, 05/1968, 06/1968)
• Kerala, Off Kochi, Fairway Buoy (Lat: 9.95) (Long: 76.16) INDIA (Record: 06/06/1968)
• Maharashtra, Off Mumbai INDIA
• Maharashtra, Mumbai Harbour (Lat: 18.70) (Long: 72.85) INDIA (Record: 09/1984-11/1985) (Depth: 2.5-14 mts)
• Maharashtra, Dharamtar Creek (Lat: 18.86) (Long: 73.02) INDIA (Record: 09/1984-11/1985) (Depth: 2.5-14 mts)
• Kerala, Kochi Backwaters INDIA
• West Bengal, Kolkata INDIA
• Andhra Pradesh, Vasishta Godavari estuary INDIA (Record: 10/1981-06/1983)
• Maharashtra, Mumbai Harbour-Thane creek system INDIA (Record: 10/1985-09/1986) (Depth: 6-10 mts)

Literature Source(s)
  • Beebe, CW (1910) XXVII. Catalogue of the pheasants, peafowl, jungle fowl and spur fowl in the Indian Museum Records of the Indian Museum ZSI 5(Part IV) 263-275 Available at - Pune University, Pune
  • Santhakumari, V (1993) A study of Medusae from Andaman and Nicobar waters The Journal of the Zoological Society of Kerala 3(1) 37-43 Available at - NCL, Pune
  • Santhakumari, V; Tiwari, LR and Nair, VR (1999) Species composition, abundance and distribution of hydromedusae from Dharamtar estuarine system, adjoning Bombay harbour Indian Journal of Marine Sciences CSIR, New Delhi 28 158-162 Available at - NIO, RC Kochi
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Haldar, BP and Choudhury, A (1995) Medusae: Cnidaria Estuarine ecosystem series, Part 2: Hugli Matla Estuary ZSI, Calcutta 9-30 Available at - NIO, Goa
  • Vannucci, M; Santhakumari, V and dos Santos, EP (1970) The ecology of hydromedusae from the Cochin area Marine Biology Springer Berlin 7(1) 49-58 Available at - http://www.springerlink.com/content/p0216458384h1867/fulltext.pdf
  • Nair, VR and Ramaiah, N (1998) Zooplankton characteristics of the coastal ecosystem off Bombay, India Proceedings of the 2nd International Conference In: Pelagic Biogeography ICoPB II 272-278 Available at - NIO, Goa
  • Padmavati, G and Goswami, SC (1996) Zooplankton ecology in the Mandovi-Zuari estuarine system of Goa, west coast of India Indian journal of marine sciences Scientific Publishers 25 268-273 Available at - NIO, Goa
  • Tiwari, LR and Nair, VR (2002) Plankton biodiversity of Dharamtar creek adjoining Mumbai harbour Proceedings of the National Seminar on Creeks, Estuaries and Mangroves - Pollution and Conservation Vidya Prasarak Mandal's B.N. Bandodkar College of Science; Thane, India 96-102p Available at - http://drs.nio.org/drs/handle/2264/1356
  • Sastry, AGRS and Chandramohan, P (1989) Planktonic coelenterates of Vasishta Godavari estuary, east coast of India Indian Journal of Marine Sciences Scientific Publishers 18 160-164 Available at - NIO, Goa
  • Silas, EG and Pillai, PP (1975) Dynamics of zooplankton in a tropical estuary (Cochin backwater), with a review on the plankton fauna of the environment 7(2) 329-355 Available at - NIO, Goa
  • Boltovskoy, D (Ed.) Zooplankton of the South Atlantic Ocean Marine Species Identification Portal Available at - http://species-identification.org/species.php?species_group=Zsao&menuentry=inleiding
  • Mitra, S (2010) Cnidarian fauna in Wetlands of West Bengal Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 7(2) 133-139 Available at - NIO,Goa
  • Santhakumari, V; Ramaiah, N and Nair, VR (1997) Ecology of hydromedusae from Bombay Harbour - Thana and Bassein creek estuarine complex Indian Journal of Marine Sciences National Institute of Science Communication And Information Resources 26(2) 162-168 Available at - NIO, Goa

Page last updated on:2012-02-06

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