Bonney — Kitchen- Middens near Llandudno. 343 



respects tlie fossil species to which we allude certainly approach 

 nearer to Chitonellus than to Chiton. 



EXPLANATION OF PLATE XVI. 

 Figs, la, b, e, d, e, f, g, h. Ohitonellus striatus, Lamarck. Recent, from the coast of 



New Holland. The plates are detached from the mantle ; fig. la being the 



anterior, and \h the posterior. Magnified three times. 

 Figs. 2, 3, 4. Chitonellus Youngianus, Kirkby. Intermediate plates. Magnified three 



times. From Craigenglen, Campsie. 

 Fig. 5. Chitontellus subquadratus, sp. nov. Intermediate plate. Magnified three 



times. Craigenglen, Campsie. 

 Figs. 6a, b, c. Chiton humilus, Kirkby. Posterior plate, magnified ; b lateral view ; 



portion of granulated surface highly magnified. Robroystone. 

 Figs. 7a, b, c,9. Chiton sp. Posterior plates ; 7b lateral view; 7c portion of surface 



highly magnified. Williamwood, near Cathcart. 

 Figs. 8a, b. Chiton coloratus, Kirkby. Anterior plate, magnified ; b lateral view. 



Settle. 

 Figs. 10, 11a, b. Chiton {?) cordatus, Kirkby. 10, anterior plate ; 11a, intermediate 



plate ; b lateral view of same. Magnified. Settle. 

 Figs. 12a, b, 13. Chitonellus subantiquus, sp. nov. Intermediate plates; \2b, lateral 



view. Magnified. Settle. 

 Figs. 14, 15. Chiton Burrowianus, Kirkby. Posterior plates, one (14) being dis- 

 torted by pressure. Settle. 

 Fig. 16. CMoM, sp. indet. Settle. 

 Fig. 17. Chiton Loftusianus, King. Intermediate plate. Settle. 



III. KiTCHEN-MlDBENS ON THE GrBEAT OkMESHEAD. 



By the Eev. T. G. Bonney,'M.A., F.G.S. 



I CAME accidently upon the deposits which are the subject of 

 this brief notice, the afternoon before I left Llandudno last ApriL 

 Want of time prevented my making more than a hasty examination 

 of them, but I think that they will repay any one who happens to be 

 visiting Llandudno this summer, and will devote a day or two to 

 them. 



After passing the Dean of Christchurch's house, a gate leads on to 

 the shore of Conway Bay (Pen-morfa on the Ordnance Map.) A 

 high steep talus covered with thin turf, here separates the fine 

 limestone cliffs of the Ormeshead from the shore, the lower part of 

 which has been eaten away by the waves, so that a cliff has been 

 formed, which soon rises to a height of some twenty feet ; the lower 

 tier of limestone soon emerges from the shingle and slopes upwards, 

 still separated from the upper cliff by the drift-covered talus. The 

 deposits of which I have to speak occur between the above-named 

 gate and the place where the lower limestone makes its appearance. 

 Directly after passing through the gate, we find a thin seam of 

 Mytihis edulis with Balanus halanaides attached to the shells, and a 

 sort of bed, or pocket, of Mytili H feet below it. These perhaps 

 may not be the remains of a Midden, but of a mussel-bed correspond- 

 ing with those along the same shore about a mile to the south. 



The cliff rises rapidly, and about four or five yards further on to 

 the N.W., we have a tolerably clear face with the following section : 



(1) Soil with angular fragments of limestone, 1| ft. 



(2) A very thin seam of shells mostly Littorina littorea. 



(3) Dark soil, about six inches. 



