gramandy's picture


Observed: 19th March 2013 By: gramandy
Kent Wildlife TrustThanet Coast ProjectWildwood Trust
gramandy’s reputation in Invertebratesgramandy’s reputation in Invertebratesgramandy’s reputation in Invertebratesgramandy’s reputation in Invertebrates

A family of chitons here (there were 5 chitons on this chalk rock, all similarly coloured). Maybe L.asellus but maybe L.cinerea? Pic 4 to show relative flatness and smoothness of plates. Any polyplacophora experts out there?

Species interactions

No interactions present.


gramandy's picture


..can you tell me why you have ruled out L.asellus? I couldn't be sure about either asellus or cinerea (colour, smoothness,girdle lack of granules etc). L.asellus is found around here/English channel and further north & T.rubra certainly isn't (in our area) and surely doesn't look like this.

I think that you are right as this was found further up the shore than my other posting which wouldn't be right for L.asellus.

ChrisMcA's picture

It really is the tides; the

It really is the tides; the pembroke table has a range (extr high to extr low) of 7.3m & the low on Mar19 was 2.5m. I guess you need a low of at least 1.3m before you get to sponges where the remaining chitons start (my table says mar'25). There's a handy website which gives a key to Irish chitons, +List & description of sp's; & it says L.asellus is subtidal,from low water down, & C.M. Yonge (mollusc expert) wrote of the Leptochiton species "none, except at extremely low tides, are ever likely to be encountered except in dredge hauls".

gramandy's picture


thanks for that. I guess all the chitons I encounter and there are alot of them will all be cinerea then.

dejayM's picture


Bang goes my theory about camouflage!