On the little known Chaetognatha Sagitta bombayensis Lele and Gae (1936) from Indian waters

Silas, E G and Srinivasan, M (1967) On the little known Chaetognatha Sagitta bombayensis Lele and Gae (1936) from Indian waters. Journal of The Marine Biological Association of India, 9 (1). pp. 84-95.

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Abstract

The need for a redescription of the little known Chaetognatha Sagitta bombayensis Lele and Gae (1936) "first described from the Bombay Harbour and subsequently recorded by Rao and Kelly (1962) from Lawsori's Bay, Waltair, is evident from the recent review of 'Chaetognaths' by Alvarino (1965). George (1949, 1952) considered S. bombayensis a synonym of S. robusta Doncaster (1903), but Rao and Kelly (1962) have drawn attention to a few differences between these two species, at the same time also recognising three stages of maturity which are inadequately described. Apparently the types, one mature and two immature specimens, have not been saved, as Lele and Gae (1936) do not mention of these being deposited in any recognised collection. Hence, in November 1966 one of us (E.G.S.) made special plankton collections from the Bombay Harbour using a half-metre ringnet of No. 20 Swiss Silk Bolting cloth for obtaining topotypes of S. bombayensis to enable a redescription of the species as well as for a taxonomical reappraisal of it. A graded series of the specimens obtained has enabled us to recognise five stages of maturity (including 0-stage) all of which are described and illustrated in this account. The topotypes are deposited in the research collection of the Central Marine Fisheries Research Institute, Mandapam Camp.

Item Type:Article
Uncontrolled Keywords:Chaetognatha sagitta
Subjects:Pelagic Fisheries
Divisions:CMFRI-Cochin > Marine Capture > Pelagic Fisheries
ID Code:879
Deposited By:Edwin Joseph
Deposited On:04 Jun 2010 16:45
Last Modified:05 Jun 2010 14:37

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