240 



PROCEEDINGS OF THE 



Niso Smithiana* J. Young. 



Phurotomaria acuta. Phill. 



,, Frenoyana. De Kon. 



„ granulata. De Kon. 



,, inter strialis. PhilJ. 



,, Yvanii. Lev. 



Trochus biserratus. Phill. 



Heteropoda. 

 Bellero'phon Dumontii. D' Orb. 

 ,, decussatus. Flem. 



, , Urei. Flem. 



Porcellia armata. De Verneuil. 



Cephalopoda. 

 Orthoceras attenuatum. Flem. 

 ,, cinctum. Sow. 



Sp. ? 



Cyrtoceras Gesneri. Mart. 



Pisces. 



Cochliodus. Sp. ? 

 Helodus. Sp. ? 

 Poecilodus. Sp. ? 



Hare ; genus new to Carboniferous strata. 



The specimens shew distinctly the 



perforated columella. 

 Rare. This species is new to our strata. 

 Rare. 

 Rare ; not formerly recorded from our 



strata. 



Do. do. do. 



Rare ; one other small species (common) 



left undetermined, probably new. 

 Rather rare.t 



Rare. 

 Common 



served, 



Do. do. 



Rare ; fragment of shell. 



small in size; finely pre- 

 do. 



Rare ; generally found in fragments. 

 Do. do. do. 



Rare. A very small, slender species, 

 smooth, with central siphuncle, and 

 perfect to the point of the shell. 



Rare ; a fragment of the shell. 



Various fragments of palatal teeth, re- 

 ferable to the genera noted, have been 

 found, as well as various forms of 

 Conodont teeth, and small vertebral 

 bones. These, however, require care- 

 ful investigation before they can be 

 identified with any of the described 

 forms, as probably many of them are 



* I have much pleasure in naming this species of Niso after Mr. John 

 Smith, the discoverer of the deposit at Glencart, and the following short 

 description will serve to distinguish the species: — 

 Description— Small, acutely conical ; spire composed of from eight to nine 



smooth fiat whorls, suture small, mouth oval, pointed above, outer lip 



thin, axis of columella perforated. Length, two and a half lines ; width 



of last whorl, one line. 

 Remarks — Prof. De Koninck has seen specimens of this shell, and is quite 



satisfied as to the correct identification of the genus, of which only one 



Carboniferous species is known. 



t Several forms of calcareous operculae are found along with the above 

 group of Gasteropoda. 



