178 rLYMOUTII MAKINE INVEKTEBKATE FAUNA. 



[ Foraniinifera— co?i/f^. ] 

 BuuMiXA MARGINATA, d'Orbigiiy : Williamson, 1858, Kec. For. Gt. Br., 

 p. 62, pi. V, figs. 10-12 (as B. 2Jii2^oides, var. marginata). 



Drake's I. Distribution precisely similar to that of Bulimiiia 

 jjnpoidcs, but individuals of the latter species average twice as 

 numerous. 



BULIMINA ACULEATA, d'Orbigny : Williamson, 1858, Rec. For. Gt. Br., 

 p. 62, pi. V, fig. 128 (as B. jynpoides, var. spimUosa). 



Common throughout the district, follows closely the distribution 

 of Bulimina pnpoidcs, on the average one specimen of amlcata 

 occurs to every twenty of pupoides. Williamson is probably right 

 in making Bulimina marginata and Bulimina acnleata mere varieties 

 of Bidimina p^ipoides, all intermediate forms occur. 



Bulimina ELEGANS, d'Orbigny: Brady, 1884, "Challenger" Eeport, 

 p. 398, pi. 1, figs. 1-4. 



Drake's I. Occurs sparingly wherever Bulimina inipoides is 

 found, probably it should be regarded as a variety only. 



BULLMIXA ELEGANS, var. cxUis, Brady: Brady, 1884, "Challenger" 

 Eeport, p. 399, pi. 1, figs. 5, 6. 



5 miles W. | S. from Eame ; 4j miles W. \ S. from Eame. 



Bulimina elegantissima, d'Orbigny: Williamson, 1858, Eec. For. Gt. 

 Br., p. 64, pi. V, figs. 134, 135. 



A minute form which is easily overlooked. On floating the silts, 

 however, it is found in practically all dredgings; never numerically 

 strong, it is none the less generally distributed. 



Virgulina sgheeibersiana, Czjzek: Goes, 1894, Syn. Arctic and Scandi- 

 navian For., p. 48, pi. ix, fig. 459 ; Williamson, 1858, Eec. For. Gt. 

 Br., p. 63, pi. V, fig. 131 (as Bulimina pnpoidcs, var. comprcssa). 



Generally distributed throughout the district. A small species 

 liable to be underestimated as to numerical prevalence, unless the 

 sands are floated ; it is really present in considerable numbers 

 almost everywhere. 



Bolivina punctata, d'Orbigny : Brady, 1884, " Challenger " Eeport, 

 p. 417, pi. Hi, figs. 18, 19. 



Drake's I., and generally distributed throughout the district. 

 See also note to Bolivina dilatata. 



Bolivina textilaroides, Eeuss : Williamson, 1858, Eec. For. Gt. Br., 

 p. 77, pi. vi, fig. 168 (as Textularia variabilis, var. kvvigata). 



Drake's I., and generally distributed throughout the district, 

 nowhere very numerous, nowhere rare. 



I regard this and Williamson's Textularia variabilis, typica, as 

 one species. 



Bolivina difformis (Williamson): Williamson, 1858, Eec. For. Gt. Br., 

 p. 77, pi. vi, figs. 166, 167 (as Texttdaria variabilis, \a,r. difformis). 



A small form, easily overlooked, but well defined. It is gener- 

 ally distributed, but nowhere numerous. The prevalence of this 

 species in surface townettings from the mouth of the Channel is 

 a feature which must influence its apparent distribution on the 

 sea-bottom. 



