Crayfish Catastrophe
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This is a signal crayfish (*Pacifastacus leniusculus*):
[image: Pacifastacus leniusculus signal crayfish japan] Invasive species, *Pacifastacus
leniusculu...
1 day ago
Adam Hanlon's web journal lists my thoughts, musings,and displays some of the pictures from my web site at www.adamhanlon.com. I am primarily an underwater photographer, and offer stock and bespoke underwater photography via hanlon photography. I am also a PADI Course Director and work full time at Capernwray Diving, Lancaster UK.