9G PORTUNIDJ-:. 



It must be considered as one of the rarer species of the 

 genus. Pennant states that it was found " on the shores 

 of Skye, opposite to Loch Jurn." This is the first account 

 we have of its occurrence, and Herbsfs figure is copied 

 from Pennant's. Leach mentions specimens having been 

 taken by Mr. C. Prideaux in Plymouth Sound ; and I 

 have a fine female specimen from the same locality, given 

 to me by my friend Dr. Miller, R.N. Mr. Couch, to 

 whose kindness I am also indebted for a specimen, men- 

 tions it in his " Cornish Fauna" as scarce on that coast. It 

 has been found by Dr. Johnston in Berwick Bay, but is 

 rare. It is an Irish species, as appears from the following 

 notice in Mr. W. Thompson's account of the Crustacea of 

 Ireland. " The only examples of this species which I 

 have seen, are some fine examples from Lame and Carrick- 

 fergus, in the Ordnance Collection, and a single specimen 

 obtained on the Dublin coast, by Mr. R. Ball. Mr. J. V. 

 Thompson notices P. corrugatus as inhabiting the harbour 

 of Cove ; but those so -named in his collection are the 

 wrinkled variety of P. depUTatorT These are all the lo- 

 calities that I am acquainted with in which it has occurred 

 as a British species ; but it is mentioned by Edwards as 

 being very common in the Mediterranean, although Risso 

 does not mention it, unless his P. Leachii be identical with 

 it, which is possible, as the short description given of that 

 species agrees in every respect with P. corruaatus. 



