HAAS: ABIDA AND CHONDRIXA. 



293 



concerning us, that one may well venture to say that here we 

 have to do with a distinct local race, which on the ground of 

 priority will naturally take the name farinesi. 



The material investigated by me, about three-fourths of it 

 collected by myself, runs up to about 10,000 specimens. The 

 more detailed results of the count of apertural teeth and folds 

 — arranged by localities — may be found in the pages of our 

 Estudis cited, to which reference must be made ; their repe- 

 tition in this place would take us too far. Only the results 

 of a few especially interesting localities can be noticed here. 



The list of tooth-combinations given above will serve to in- 

 terpret the following exposition. It contains all the combina- 

 tions of apertural teeth known to me from the Pyrenees and 

 northern Spain, from the wholly toothless farinesi up to a 

 form exhibiting 9 teeth. I have ascertained 28 such combina- 

 tions, only a small part of them, fortunately, have been pro- 

 vided with names; the names of each named combination 

 being given in the list. As will be seen, several combinations 

 have been named more than once. 



Among 121 specimens from the Congost of Organya, Segre 

 valley, were present: 



Combination 1, 1 specimen. Comb. 19, 17 specimens. 

 10, 1 " " 20, 33 



12, 64 specimens. " 24, 5 



The size fluctuates between : length 4.5 to 5 mm., diam. 1.25 

 to 1.75 mm. 



455 examples from El Bruch, Llobregat valley : 



Comb. 



Comb. 



spec. 



