Nov 10, 2016
I have now been up to Aberdeen and brought back the specimens that Francis Neat so kindle collected. I had to explain to the lady in the airport that the box going through the X-Ray machine may look a bit odd. She looked at me in agreement.
I have now started to sort through the material and work on it. The first thing out of the freezer, largely because it filled up so much of it, was this head and thorax of a large Hydrolagus affinis, one of the largest chimaeras.
Rui Pedro Vieira, Jürgen, and 7 others like this.
The chimaeras (ghost sharks and spookfish) are a group of often deep sea fishes related to the sharks and rays. Unlike sharks, chimaeras have large, continuously growing tooth plates. These tooth plates have a very different structure to the teeth of sharks, or indeed any other fish. Within the teeth are sheets, rods and 'beads' of hard material that forms the cutting and biting surfaces. We shall be investigating the structure and development of these teeth and relating it to teeth of sharks.
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