CARBONIFEROUS BRACHIOPODA. 
263 
J. Neilson, John Young, J. Smith, of Kilwinning, and Robert Craig, of Beith, for the 
advantage of having been able to study a very large series of specimens belonging 
to some sixteen species, and which, at my request, Mr. J. Neilson has kindly tabulated 
as follows : 
Terebratula sacculus .. 
— vesicularis 
Spirifera Urei 
— Carlukensis 
— lineata 
— triradialis 
Spiriferina octoplicata 
— insculpta 
Eetzia radialis 
Chonetes Laguessiana 
var. gibberula,. 
— polita 
Strept. crenistria 
Productus aculeatus .. 
— punctatus 
— spinulosiis 
— longispinus 
— cora 
Ehynchonella, sp , 
Discina nitida , 
Clyde Basin. 
Upper Lime- 
stone Series. 
Gare 
Limestone. 
s a 
Lower Limestone 
Series. 
Calderside Lime- 
stone. 
6^ 
Ateshibe. 
Upper Lime- 
stone Series. 
Lower Limestone Series. 
Upper Beds. 
-i-i 
"3d o 
3:2 
§ P 
Lower Beds. 
I have examined and carefully identified the species named in this table ; some of the 
specimens are quite microscopic. 
Mr. J. Neilson, who has devoted much attention to the collecting of these minute 
