246 TRANSACTIONS, NATTJEAL HISTORY SOCIETY OP GLASGOW. 



Machairodia * sulcata, uew species. 

 A stout curved tootli, with three furrows near the base and 

 a sharp lateral edge; PI. VI., Fig. 17. 



Locality. — Raveugill, in Glencaple, Abingtou ; in shale next 



chert. 



Machairodia rhombea, Pander. 



Strongly curved in lower part, and with a sharp edge along 

 the greater part of the side; PI. VI., Fig. 19. 



Locality. — Raveugill, in Glencaple, Abington ; in shale next 

 chert. 



Drepanodus flexuosus, Pander. 



Strongly curved in lower part, more gently so next the point; 

 PI. VI., Fig. 18. 



Locality. — Hunt Law Cleuch, near Wanlockhead ; chert-shale. 



Note. — The above two species have been found in the Palaeozoic 

 rocks of the Baltic Provinces of Russia. 



NEW GENUS, CORNURAMIA, Smith. 

 In this genus there is a double-pointed, horn-like beam. 



Cornuramia monodonta, new species. 



From a regularly curved beam projects a single stout curved 

 tooth, about equal in length to the beam; PL VI., Fig. 20. 



Locality. — Raveugill, in Glencaple, Abington ; in shale next 

 chert. 



Cornuramia diplodonta, new species. 



From a double-curved beam, sharp pointed at both ends, project 

 two sharp-pointed teeth, each about half the length of the beam ; 

 PI. v.. Fig. 25. 



Locality. — Raven gill, in Glencaple, Abington ; in shale next 



chert. 



NEW GENUS, PACHYSOMIA, Smith. 

 Beam thick and curving, one extremity with a knob - like 

 termination, other end shai-p. 



Pachysomia wanlockensis, new species. 



From a strong beam twelve straight sharp teeth project; 

 PI. VI., Fig. 23. 



Locality. — Bed of Wanlock Water, seventeen yards north-west 

 of Rea Burn ; in chert-shale. 



* As Pander's generic name " Machairodus " was pre-occupied, I have 

 slightly altered the word. 



