LIST OF FORAMINIFKRA DREDGED IN PORTREE BAY. 239 



XXIII. 



LIST OF FORAMINIFERA DREDGED IN 

 PORTREE BAY, ISLAXD OF SKVE. 



BY DAVID ROBERTSON, F.L.S., F.G.S. 

 [Rend 26th November, 1889.] 



On a former occasion I directed the attention of 

 the Society to some Foraminifera new to Britain, 

 which had been dredged during the month of August, 

 1879, in Portree Bay, at a depth of from 14 to 18 

 fathoms, where the bottom consisted of mud, shells, 

 and gravel.* The following list contains the result 

 of two hauls, made close together in Portree Bay, 

 with a little dredge measuring 9 by 5 inches, under 

 conditions as to depth and sea-bottom similar to 

 those above mentioned. Only a small portion of the 

 material was examined, yet the great number of 

 species obtained, amounting to over 100, shows the 

 richness of the locality. 



Biloculina depressa, d'Orb. — Common. 

 ringens, Lamk. „ 



elongata, d'Orb. „ 



irregularis, d'Orb. — Frequent. 

 Spiroloculina limhata, d'Orb. „ 



canaliculata, d'Orb. — Common. 

 excavata, d'Orb. — Frequent. 

 Miliolina trigonula, Lamk. —Common. 

 tricarinata, d'Orb. „ 



ohlonga, d'Orb. — Frequent. 

 secans, dOrb. — Rare. 

 bicornis, Walker and Jacob. — Rare. 

 seininuluvi, Linn. — Common. 

 tenuis, Czjzek. — Common. 



* Proceed. Kat. Hist. Soc Olasg., vol. v., p. 11. 



