On Abnormal Iiimbs of Crustacea. 75 



is common, and the specimens unusually fine, we have 

 dredged it at a depth of 105 fathoms. 



Abroad it has been taken in the following localities : — 

 Christiansund ; Mebotten, 50-60 fathoms (Sars) ; Mediter- 

 ranean, in deep water (" Travailleur "). 



Anapagurus ferrugineus.^ 



PagiLTUs ferrugine^is, Norman, Ann. Mag. Nat. Hist., ser. 3, vol. viii., p. 



273; pi. xiii., figs. 1-3 (1861). 

 Anapagurus ferrugineus, Henderson, Proc. Glasgow Nat. Hist. Soc. (1885-86). 



Eyestalks slender, reaching the middle of the last joint of 

 the antennal peduncles; the internal antennge about three 

 times the length of the ocular peduncles. Chelipedes clothed 

 with silky hairs ; the right wrist moderately spiny on the 

 inner margin ; the right hand elongato-ovate and smooth, in 

 length equalling the wrist. Left chelipede slender, with the 

 sides nearly parallel. Ambulatory limbs smooth, slightly 

 pubescent. Length, about 1 inch. 



Rah. — Sparingly in the following localities : — Moulin Huet 

 Bay, Guernsey ; Lamlash Bay, and Shetland (I^orman) ; 

 Moray Firth (Edward) ; Northumberland Coast (Brady). 

 We have taken it in several localities in the Firth of Clyde. 



V. On Abnormal Limhs of Crustacea. By Professor Duns, 

 D.D., r.E.S.E., Vice-President. [Plate II.] 



(Read 17th March. 1886.) 



In a short paper read to the Society in April last "On 

 Eeproduction of Lost Parts and Abnormality," I referred to 

 examples of these among Crustacea. This note is devoted to 

 illustrative instances in the shore crab {Garcinus mcenas), the 

 common crab {Cancer pagurus), and the Norway lobster 

 {Nejphrojps Norvegicus). 



1 I regret that I have not had an opportunity of examining specimens of 

 the Scandinavian Pagurus chiroacanthus, Lilljeborg, with which the present 

 species is perhaps synonymous. 



