406 
ME. W. K. PAEKEE AND PEOFESSOE T. E. JONES ON SOME 
We have it from the Irish plateau of the North Atlantic at 43 and 223 fathoms, rare 
and small. 
Genus Valvulina. 
Valvulina triangularis, D’Orbigny, Yar. conica , nov. Plate XY. fig. 27 (Arctic). 
This is a very simple condition of Valvulina. The triserial arrangement of chambers 
forms a smooth conical figure, without any trace of the three flat faces so usual in this 
species. A similar condition, but depressed, is shown in V. fusca, Williamson, sp. 
Valvulina cornea , Parker and Jones, was described and figured in the Annals Nat. 
Hist. 2 ser. xix. p. 295, pi. 11. figs. 15, 16, but not named separately from the better 
developed type, which has a triangular apex. It is also figured by Dr. Carpenter, op. 
cit. pi. 11. fig. 16. It occurs with the typical form, both in the fossil and the recent 
state (extremely large in sea-sands from Melbourne) ; it is rare and small in the mixed 
sands from Norway (MacAndrew and Barrett). It lives also in the Mediterranean and 
on the Abrolhos Bank, South Atlantic. 
The type, V. triangularis , D’Orb. (Modeles, No. 23 ; Carpenter’s ‘ Introd. Foram.’ 
p. 146, pi. 11. fig. 15), though occurring of large size (with V. conica, also very large) 
in Australia, is usually rare ; but it has been marvellously common and large in Tertiary 
times, as shown by specimens from Grignon and Hautville (France). 
Lituola nautiloidea, Lamarck, Var. Canariensis, D’Orbigny, sp. Plate XY. figs. 45 a, 
45 b (Arctic) ; Plate XVII. figs. 92-95 (North Atlantic). 
Of the disco-spiral Lituolce most are attached and therefore more or less plano-convex ; 
when growing free, however, they attain the more symmetrical, somewhat biconvex, and 
nautiloid shape of L. Canariensis , without attaining the outgrowing rectilinear series 
of chambers shown in Lamarck’s L. nautiloidea, and still more in L. irregularis, 
Rcemer, sp. 
Lituola Canariensis , D’Orb., sp. (Foram. Canaries, p. 128, pi. 2. figs. 33, 34), has, like 
other Lituolce, a rusty coloured shell-substance among the sand-grains that largely make 
up its shell. We have a few large specimens from Finmark (East of Rolfs Oe), 
30 fathoms (MacAndrew and Barrett) ; and some small specimens from the mixed 
sands from Norway. At the Hunde Islands (Dr. Sutherland) it is large and common 
throughout ; and in the sands from Baffin’s Bay (Parry) it is most common and some- 
times large. 
In the North Atlantic it is rare ; on the Irish plateau it is small at 43 fathoms and 
middle-sized at 223 fathoms ; and it is middle-sized at 1203 fathoms north of the Bank, 
and at 133 fathoms in Trinity Bay. The British coasts, Abrolhos Bank, Hobson’s Bay 
(Australia), and Fiji are other localities for L. Canariensis. 
Fig. 94 is probably not worth separating from L. Canariensis ; its chambers are either 
imperfect or obsolete. 
