SPECIES OF CARBONIPEKOTJS MFECHISONIA. 575 



EXPLANATION OF PLATES. 

 Plate XVL 



Fig. 1. Murchisonia {Goniostropha) hibernica, sp. nov., X 3. Hook Point, 

 Wexford. Museum of Science and Art, Dublin. 



Fig. 2. M. {Gr.) Tatei, sp. nov., X 2. Howick. Alnwick Museum, 



Figs. 3-6. M. {Hypergonia) guadricarinata, M'Coy. Fig. 3, type, X 4. Black- 

 lion, Enniskillen. Museum of Science and Art, Dublin, Fig, 4, front 

 view : fig. 5, back view, X 4, Settle. York Museum. Fig. 6, X 8. 

 Oraigenglen, Campsie. Collection of Mr. John Young, Grlasgow. 



Fig. 7. M. (H.) quinquecarinata, De Kon., var. pulchella, X 5. Law Quarry, 

 Dairy. My own collection. 



Figs. 8, 9. M. (K) conula, De Kon., var. convexa. Fig. 8, nat. size ; fig. 9, 

 X 4. Abbey Foss, Askrigg. My own collection. 



Figs. 10-12. M. {H.) pentonensis, sp. nov. Fig. 10, back view, x 3. Fig. 11, 

 front view, X 3. Fig. 12, fragment showing lines of growth, X 4. 

 Penton. My own collection. 



Fig. 13. M. {H.) Kirkbyi, sp. nov., X 4. Eanderstone, Fife. My own col- 

 lection. 



Figs. 14, 1.5. M. (H.) plana, sp. nov. Fig. 14, back view, X 8 ; fig. 15, front 

 view, X 6. Law Quiarry, Dairy. Collection of Mr. John Young. 



Plate XVII. 



Figs. 1, 4, 5, 8. Murchisonia (Cerithioides) telescopium, Haughton, Fig. l,back 

 view, nat. size. Little Island, Cork. Trinity College Museum, 

 Dublin. Fig. 4, portion of a shell showing mouth, nat. size. Fig, 5, 

 back view, nat. size. Cork. Collection of Mr, Joseph Wright. Fig. 8, 

 back view, nat. size. Bolland. Gilbertson Collection, British Museum 

 (Natural History), 



Figs. 2, 3, M. (Hypertonia) elonyata, Portl, Fig. 2, back view, X 3. Trinity 

 College Museum, Dublin. Fig. 3, front view of type, X 3, Dromard, 

 Draperstown. Museum of Practical Geology, London. 



Fig. 6. M. {H.) elongata ?, var., X 2. River Tweed. Museum of Practical 

 Geology, London. 



Fig. 7. M. {Ccelocaulus?) tuedia, sp. nov., X 3. Lewis Buri^. Alnwick Museum. 



