SEC. 3.] EUNN-ISLAND RANGE FROM PUTCHUM TO CHOEAU. 105 



Rhynchonella, Terebratulm, &e.j some being crowded 

 Southern slopes. ' _ . , . , . 



with narrow crinoid stemSj showing plainly in 



white carbonate of lime upon hard yellow or red flaggy slabs. One 



zone near the crest of the ridge contains several small asteroid corals. 



The following names will indicate the kind of fossils obtained from this 



Kurreer portion of the range : — 



Corbula pectmata. Sow., a Cardium, closely resembling C Suchmani, Morris and 

 Lycett ; Anatina, closely allied to A. plicatella, Morris and Lycett ; a Radula and a 

 Gervillea, most probably identical with H. dupUcata and G. Waltoni respectively. Of 

 Gastropods may be noticed a species of Nerinea, one of Natica, closely allied to N. pyra- 

 midata, and two species of Nerita, very similar to N. rugosa and N. Buvignieri ; these 

 fossils are all from the lowest beds : while from the uppermost portion of the series seen 

 here come a Selemnite lilie B. Bessinus, Astarte compressa, a Trigonia, probably T. inter- 

 Imvigata, Cucullea virgata, Ostrea Marshii,. a Rhynehonella very like concinna, and several 

 other forms. 



In the lower ground^ the rocks overlying those just mentioned 

 often contain black or red ferruginous bands with 



Lower ground to south. 



white salt efflorescence, some with the peculiar 

 concretionary structure alluded to at page 115, and they usually consist 

 of soft, vrhite, yellowish or purple sandstone, obliquely laminated, and so 

 incoherent in places that martins, &c., are able to burrow into it 

 to build their nests. Shales and calcareous beds are still occasionally 

 present and some conglomerates occur. 



Some of the cliffs on the north side of this island are very fine, 

 giving an impression of greater height than that 



Cliffs. 



indicated by the aneroid barometer. Measured 

 by this, the absolutely vertical portions may average about 100 feet and 

 their summits 350 to 400 feet above the Runn. For more than 200 feet 

 of this height they have a rugged steep talus, with occasional projecting 

 crags, which sends out more gently sloping spurs northwards, and not 

 unfrequently the naked rock appears down to the very edge of the Runn. 

 (See Fig. 2). 



( 105 ) 



