Foraminiferal LimeHtonex. 237 



Planorhidiyia ? mediterranensis, d'Orbignj-. 



Several specimens of a Planorhulina are seen in the slides of 

 No. .571, in some cases adherent to other objects. One of the 

 specimens seen is attached to the flanged portion of a Heterostegina. 



Carpenteria, spp. 



This genus seems to have been important in the formation of 

 some of these older limestones. One form here noticed closely 

 resembles C. monticularis of Carter. Another form, of which there 

 are two specimens present, has certain of the walls of the test 

 strongly undulated on the outer surface. This modification may 

 possibly agree with the coarser form C. utriculans, Carter. 



Rotalia schroeteriana ?, Parker & Jones. 



Several sections of a Rotalia, possibly of the above species, occurs, 

 in No. 571. 



Gypsina globulus (Reuss). 

 One very fine section of this form occurs here. 



Amphistegina lessonii, d'Orbigny. 

 This species is here tolerably common and typical in form. 



Keterodegina depressa, d'Orbigny. 



The specimens of the above are numerous in No. 571, and are 

 very complanate or outspread. The sections of the isolated, 

 flanged portions of the test might easily be mistaken for 

 Cycloclypeiis, were the central parts of the test not present in 

 the slides. 



No. 861. Limestone in contact Avith basalt and palagonite iu 

 south of Cove. In the limestone portion are large masses of 

 Lithothamnion intergrown with foraminifera [Planorhulina) ; there 

 are also polyzoa and many foraminifera present. The surface of 

 the basalt is coated with a layer of Lithothamnion and other 

 adherent and encrusting organisms. Possibly this alga, which is 

 a peculiar form of Lithothamnion, could grow on the rock whilst 

 the latter was still warm. 



Foraminifera : 



Miliolina, sp. 



Textularia rugom (Reuss). Common. 



Olohigerina, sp., near pachyderma (Ehr.). Veiy rare. 



