Geol. Mag., li 



Dec. IV, Vol. VI, PI. XVI. 



I'ig. 2a. 



r 



Fie. 2b. 



Fig. lb. 



'A 



--/'■ 



Fig. \a. 



Figs. \a, b, Lindstromasier antiqita, and Figs, za, b, Palceasterina Bonneyi. 



Fig. I, from a drawing of the type-specimen by Geo. Liljevall. 

 J' 2, ,, ,, by J. W. Lowry. 



