I50 HULL SCIENTIFIC AND FIELD NATURALISTS’ CLUB. 
Intvod. Foram., p,.2or, plivs,f. 5: J. Pick B., Crag Foram., 
pl. ii., f. 4-10; pl. iv., f.19. Brady, Rep. Chall., p. 660, pl. 
SG. te DOs pl. xe, f. 1)4,°5¢- pl. cxv., £455 
Plano-convex, the convexity on the inferior surface, 
superior surface flat or concave. Shell of dark colour, stout, 
and coarsely punctuated ; aperture a long fissure at the upper 
and inner margin. Often parasitic, and sometimes found with 
the outer layer of sarcode covered with sand. Very few 
specimens were found, although usually common on our 
coasts. Plate 11, fig. 38. 
Rotalia Beecarii, Linné. Will., Rec. Foram. Gt. Brit., p. 
46, ploiv.; 1. 90-92. (Pc ].; Phil. Trans., tiie p. 388, ‘pl. 
xvi., f. 29-30. J.P. & B., Crag Foram., pl. ii., f£. 19-25; 
Encycl. Brit., 9th Ed., 1879 ‘(© Times’ ’) Foram. = "380, f, 2Gy 
Brady, Rep. Chall., p. 704, pl. cvii., f. 2, 3. 
Double-convex, convexity greatest on inferior face ; margin 
rounded and slightly lobated ; segments numerous, arranged 
in about four convolutions, only the last visible on the under 
side. Frequent. Plate 11, fig. 39. 
Nonionina depressula, Walker & Jacob. Will., Rec. Foram. 
St Brit, p07, plntVat.)7O47i6. FP. e].; eb, Trans., 1865, 
Pp. 403; pl. xiv., f. 39 a, b. Brady, Rep. Chall., paz25: pl. CIX., 
f20,.7 
Test compressed, peripheral edge round, the umbilici are 
nearly flush, segments somewhat “inflated. Shell wall thin 
and hyaline. Gannon Plate 11, fig. 40. 
Polystomella striatopunctata, Fichtel & Moll. Will., Rec. 
Foram. Gt. Brit., p. 42, 44, pl. ili, f. 81, 82, 82a. Pep 
Phil. Trans., 1865, Pp, 402, pl. xiv., f. 31-343 pl. xvii., f. 6a, b. 
B. P. & J.,, Trans. Zool. Soc. xii., p. 230, pl.xhiu. Brady, 
Rep: Chall... p. 799. plwcixs, £22, 23. 
Discoidal, bilaterally symmetrical; final convolution in- 
closes all the others ; margin rounded ; walls finely perforated ; 
septal bridges distinct ; a single row of pores along the 
sutures. Frequent. Plate 11, fig. 41. 
