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Re: Unidentified Fish
Some things are hard to see in photographs.
1. Does the mystery fish have an adipose fin (small unpaired, often fleshy
fin on the top surface of the cadule penticule, just in front of the tail)?
2. Do any of the fins have any color, or are they all clear?
3. Does the fish have any barbels (sometimes they can be very fine and
difficult to see)?
4. How much space (relatively) is there between the vent and the placement
of the ventral fin (the unpaired in on the lower surface of the cadule
penticule, between the vent and the tail)? For example, in a livebearer
(female) the ventral fin lies directly posterior to the vent, while in a lot
of other fish there is a considerable distance between the vent and the fin.