PLYxMOUTH MARINE INVEETEBKATE FAUNA. 175 



[ Foraminifera — contd. ] 



jMiliolina trigonula (Lamarck): Williamson, 1858, Eec. For. Gt. Br., 

 p. 84, pi. vii, tigs. 180-182. 



Drake's I. ; riaine-Eddystone, generally distributed, but not 

 numerous ; Eddystone-Looe, scarce in the dredgings examined ; 

 Bolt, an occasional spec. 



MiLiOLiNA TRICAEINATA (d'Orbigny) : Brady, 1884, "Challenger" Eeport, 

 p. 165, pi. iii, fig. 17. 



Eame-Eddystone, an uncommon form ; Eddystone-Looe, none 

 found as yet. 



MiLlOLlNA OBLONGA (Montagu) : Williamson, 1858, Kec. For. Gt. Br., 

 p. 86, pi. vii, 186, 187, as M. seminulum, var. ohlonrja. 



Eame-Eddystone, generally distributed, numerous everywhere, 

 sometimes the dominant species in a dredging, one of the 

 commonest Foraminifera ; Eddy.stone-Looe, much as above, but 

 the species is a little less frequent ; Bolt, the species is less 

 common in the dredgings examined ; [Drake's L (J.J.L.)]. 



MiiJOLlNA SEMINULUM (Linne) : Williamson, 1858, Eec. For. Gt. Br., 

 p. 85, pi. vii, figs. 183-185. 



Cawsand B. ; Drake's I. ; Eame-Eddystone, universally present, 

 common everywhere, but numbers fluctuate considerably from 

 point to point, not unusually one of the dominant species in a 

 dredging ; Eddystone-Looe, much as last, but never the dominant 

 species so far as dredgings have been examined ; Bolt, extremely 

 common, the dominant species of the ground. 



MiLlOLiNA SUBROTUNDA (Montagu) : Bnuly, 1884, " Challenger " Eeport, 

 p. 168, pi. V, figs. 10, 11. 



Drake's I. ; Eame-Eddystone, common and almost universally 

 distributed, but more plentiful in shallower water. These remarks 

 apply to whole district. 



MiLiOLlNA ciRGULARis (Bornem) : Brady, 1884, "Challenger" Eeport, 

 p. 169, pi. V, figs. 13, 14. 



Drake's I. ; Eame-Eddystone, as last species, but less common ; 

 Bolt, occasional specimens. 



MiLlOLlNA SECANS (d'Orbigny): Williamson, 1858, Eec. For. Gt. Br., 

 p. 86, pi. vii, figs. 188, 189 (as M.scminidum, var. disciformis). 



From the shallower dredgings throughout the district, seems to 

 prefer clean sands, and is often common on beaches. 



MiLiOLiNA BicoRNis (Walker & Jacob) : Williamson, 1858, Eec. For. 

 Gt. Br., p. 87, pi. vii, figs. 190-192. 



MiLiOLiNA BICORNIS, var. cUgans : Williamson, 1858, Eec. For. Gt. Br., 

 p. 88, pi. vii, fig. 195. 



Cawsand B.; Drake's I.; Eame-Eddystone, generally distributed, 

 always present, sometimes plentiful. The same remarks may safely 

 be applied to the whole district. 



MILIOLINA BOUEANA (d'Orbigny): Brady, 1884, "Challenger" Eeport, 

 p. 173, pi. vii, fig. 173. 



As last species, but a tritie less common. 



