Br Herdman on the Invertebrate Fauna of Lamlash Bay. 19 



Mr Pearcey says that the specimens of saad and mud are 

 of different degrees of fineness, but all of much the same 

 composition, viz. : quartz grains, particles of coal, small and 

 broken shells of Mollusca, Annelide tubes {Serpnla, etc.), 

 fragments of Polyzoa, valves of Entomostraca, fragments of 

 tests and spines of Echinoderms, and calcareous Algse, the 

 latter being very abundant in some localities. 



ADDITIONAL LIST OF SPECIES. 



FOEAMINIFEEA. 

 I. Imperfoeata — 



MlLIOLID.^. 



Spiroloculina limbata (D'Orb.). 

 S. dep-essa (D'Orb.). 

 Quinqiieloculina ohlonga, var. (Mont.). 

 Q. fernssacii (D'Orb.). 

 Biloculina ringens (Lamk.). 

 B. eompressa (D'Orb.). 

 Cornnspira foliacea (Phil.). 

 Miliolina trigonula (Lamk.). 



ASTRORHIZID^. 



Astrorhiza limuola (Sandahl). 



Off Whiting Bay, 25 fathoms. 



Trochammina sp. 

 II. Perforata — 



LlTUOLID^. 



Lagenid.^. 



Lagena vulgaris, var. striata (Williamson). 

 L. striata (D'Orb.). 



Many. 

 L. marginata (W. & J.). 

 L. squamosa (Mont.). 

 PolymorphiTUL lactea (W. & J.). 



Many. 



