> I wonder how somebody should have been able to recognize a
> Treadwell species in the Black or Azov Sea.
I think this might have been Kiseleva in 1964.
The type of Ancistrosyllis tentaculata Treadwell, 1941 (now Sigambra
tentaculata) exists, and has been re-examined at least twice, most recently by
Moreira and Parapar 2002. They do not comment on the literature Black Sea
region records, but redescribe a quite similar species, Sigambra parva Day,
1963, as present in the Mediterranean. Perhaps this might be Kiseleva's
species - or the record might be something else again.
I am not a pilargid expert.
Geoff Read <g.read at niwa.co.nz>