PALEOZOIC LIMESTONE FEOM LAKE TJllMI. 453 



Fusulina splicerica, described and figured as a new form by 

 Abich* in 1859 from the Bergkalk( = Carboniferous) formation 

 of the Armenian and Persian plateaux, which, shows resemblances 

 to Fusulina cyliadrica of Fischer, a characteristic species of 

 European Eussia. 



In reference to the distribution of the older rocks in this area, 

 attention may be called to the geological plan of the islands on 

 Lake Urmi published by Abich f iu 1882, which is of considerable 

 value. By this we can trace the extension of these ancient 

 deposits through Koyun Daghi and Isbir to the western shores 

 of Lake Urmi, where in each case they form the fundamental 

 Btructure on which repose the various beds of the Miocene 

 system. Mr. Giinther states, in some manuscript notes on this 

 area, that a similar limestone as that occurriug at Shazalan is to 

 be seen at the northern end of Koyun Daghi, and possibly also 

 on the neighbouring island of Ar2;u. 



There appear to be no references in literature to the geology 

 of this small island, of Shazalan ; so that the example of limestone 

 brought home from that place by Mr. Giinther is of great 

 interest, not only in adding to the list of Palaeozoic Eoraminifera 

 from this neighbourhood and. in establishing as Carboniferous 

 the age of the rock in which they occur, but in extending farther 

 northwards the distribution of this Palaeozoic formation, so 

 important an addition to the geological history of Lake Urmi. 



* Abich, H. — " Vergleichende geol. Grundziige der Kaukasusischen, Arme^ 

 nischen und Nordpersischen Gebirge," Mem. Ac. Imp. Sci. St. Petersbourg, 

 1859, vol. vii. pi. 3. fig. 13, p. 439. 



t ' Geologic des Armenischen Hochlandes,' 1882, p. 275. 



LINK. JOURN. — ZOOLOGY, TOL. XXVII. 35 



