paleonet Tremalkanal

[Franz-Josef Lindemann <f.j.lindemann@xxxxxxxxxx>]

A century ago the Swedish palaeontologist Carl Wiman used the term 
"Tremalkanal" (in his German-written papers) when describing sensory 
grooves in temnospondyls (e.g. Wiman 1914). I have never seen this term 
anywhere else and wonder if anybody could direct me to a textbook using it. 
Or would anybody be able to explain the terms etymology? The only origin I 
could imagine is the Greek "trema" meaning hole or opening, but not groove 
or canal or furrow. Wiman also speaks of Schleimkanal (= mucus, slime), but 
I cannot find any etymological link to trema(l) there either.

Any ideas?

Cheers,
fj

Franz-Josef Lindemann
Natural History Museum, University of Oslo
P.O.Box 1172 Blindern, NO-0318 Oslo
Phone: +47 22 85 16 59
Fax: +47 22 85 18 00
visiting address: Sars' gate 1, NO-0562 Oslo