INACHUS DORYNCHUS. 17 



pedipalps, are very similar to those of the former species. 

 The gastric region of the carapace has three spines, two 

 small ones distant, and another much stronger placed far- 

 ther back on the median line, and, with the others, forming 

 a triangle. There are two tubercles on each hepatic 

 region, placed as in the former species ; and the cardiac 

 region, instead of a spine, has only an elevation, on which 

 are three very small tubercles. The sides of the shell are 

 destitute of tubercles. The hands are smooth. In other 

 respects this species resembles the former. 



The present species of InacJms was discovered by Dr. 

 Leach, as he informs us, " whilst cleaning a parcel of /. 

 DorseMensis from the Salcombe estuary for examination." 

 Mr. Couch states that it is commonly found in crab-pots 

 in Cornwall. Mr. Hailstone found it at Hastings, where 

 I have also obtained it. I have taken it by the dredge in 

 Studland Bay, Dorsetshire, and at J3ognor I found several 

 small specimens amongst the refuse of prawn and lobster 

 pots. These were of a lighter colour than most which I 

 have observed from other localities, but this may have 

 arisen from their being young. In Mr. Embleton's list of 

 the Crustacea of Berwickshire and North Durham, it is 

 stated to occur not uncommonly in Berwick and Embleton 

 Bays. It is found on the coast of Ireland, though rarely, 

 having been taken by Dr. Drummond in Belfast Bay. 



This species, like all the others of the family, is very 

 liable to be covered with small fuci and sponges ; hence, as 

 Dr. Leach has observed, in all probability arose its having 

 been for so long a time undiscovered, having doubtless been 

 passed over as /. Dorsettensis ; it does not, however, at 

 present appear to be so generally distributed as that species. 



