diving depths. As well as its much more cryptic colouration, it is distinguished by the large spikes on its claws. This animal is generally classified as a suspension feeder but I understand all the squat lobsters are very versatile and can use those feathery mouthparts to both catch drifting food and sweep up debris.
Squat lobsters also eat carrion and this way of getting sustenance seems to be particularly favoured by the long-clawed squat lobster, Munida rugosa. This species has a northern distribution and is a frequent sight in Scottish sea lochs, especially among boulders and stones on muddy slopes. There are sometimes two or more arguing over a dead crab or jellyfish. Its long, slender claws and overall reddish colour( with no blue markings) are distinctive.
In addition to these three most obvious squat lobsters, several further species live around the British Isles. One example is the very small( less than 2 cm long) Galathea intermedia with large red eyes and often a pale stripe down its back. Close-up photographs can reveal tiny blue spots on its generally red carapace and a set of brilliant iridescent-blue marks around its head and mouthparts. There is an interesting story here, with scientists concluding that these head marks may have a function in communication between individuals. As I say so often in Critter, there is always more going on among the residents of our underwater world than we might imagine! �
The widespread and abundant squat lobster, Galathea squamifera
Paul’ s photos and video clips capturing UK marine life stories are on Instagram @ paulnaylormarinephoto
Two Spiny Squat Lobsters in their typical crevice habitat
Stand-off between two Long-clawed Squat Lobsters
The tiny Galathea intermedia
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