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Syno spikes
Posted: 15 Apr 2003, 21:32
by Tom
Saw something interesting at lfs. In a large tank was a big old Syno. It was 14-15" and a rather nondescript gray color (probably from that West African complex). Here's what was interesting- on both sides of the body just above the pectorals was a 2" square patch of spikes/thorns. I've had Synos for 20+ years and have never seen this. My assumption is this is a male and he uses these for fighting/defense. If anyone has input please reply.
Tom
Posted: 15 Apr 2003, 22:53
by Silurus
What you saw was most likely the bony bumps on the surface of the cleithral (humeral) process.
Posted: 16 Apr 2003, 00:46
by Tom
I'm still not sure that's what it was. There were about 8 on each side and they each came to a point. Your knowledge on this is much greater than mine so I'll have to concede you're right.
Posted: 16 Apr 2003, 01:12
by Silurus
What you saw were most likely the spikes/bumps on the surface of <i>S. acanthomias</i>. This species has an unusual humeral process where the posterior part is covered with a series of spikes.
Posted: 16 Apr 2003, 03:40
by Tom
Heok Hee-
I have Poll's Syno book. The line drawing of acanthomias fits what I saw. Thanks for your input.
Tom