146 FORAMINIFERA OF THE CRAG. 



TEXTriiAEiA SAGiTTTjLi, Costa, 1850. Atti Accad. Ponton., vol. vii, p. 291, pl.xxiii, 



fig. 11. 



— JuaosA, Brad;/, 1884. Report ' Challenger,' p. 258, pi. xlii, figs. 7 a, b. 



— SAGiTTULA, Fomasiiii, 1887. Boll. Soc. Greol. Ital., vol. vi, p. 374, 



pi. ix, figs. 1, 2. 



— — Idem, 1888. Ibid., vol. vii, p. 46, pi. iii, figs. 2—4. 



— .TTGOSA, E(jger, 189.3. Abhandl. k. Ak. Bayer., vol. xxviii, part 2, p. 273, 



pi. vi, figs. 19 — 21 (of rather irregular 

 growth). 



This variety of T. sagiffuJa lias tlie sutures limbate, either being thickened 

 and sv^^oUen with an exogenous deposit of shell-substance, or overlapped by the 

 extra shell-substance at the top edge of each chamber. Another limbate variety 

 is the T. flabell'iformis, Giimbel, noticed at page 147 ; and Fornasini's " forma 

 abbreviata " of T. saglttvla, ' Boll. Soc. Geol. Ital.,' vol. vi, 1887, p. 400, pi. i, 

 fig. 2. 



Occurrence. — Textllaria sagittnia, Y^r. jugosa, has been found in the living state 

 in considerable numbers in the shore sand on the east coast of Madagascar. 

 Specimens were also found, but of diminutive size, by the ' Challenger ' off Raine 

 Island, Torres Strait, at a depth of 155 fathoms; and by the 'Gazelle' off the 

 north-west coast of Australia. The Gulf of Suez (15 to 20 fathoms) is another 

 locality whence specimens have been obtained. The Crag specimen is in Mr. F. 

 Chapman's Collection, and was probably from Sutton ; this is the first record of 

 the variety in a fossil condition. 



2. Textilaria sulcata, sp. nov. Plate V, fig. 20. 



Characters. — Shell short, triangular in outline, compressed, chambers hori- 

 zontal, with sharp lateral edges. A broad furrow with unequal sides marks the 

 median line where the chambers meet. This is due to a partial thickening, or 

 limbation, of the inner angle of the upper margin of the chambers (after the eai-ly 

 growth of the shell) on one side, and by a succession of protuberances on the 

 chambers of the other side. 



The local thickening of the margins of the chambers near the median line of 

 junction is evidently analogous to, if not identical with, that in fig. 19, although 

 not of equal intensity. 



Occurrence. — The Crag specimen of Textilaria .•sulcata, figured PI. V, fig. 20, is 

 in the Searles-Wood Collection in the British Museum, and was probably obtained 

 from Sutton. We have this species from the Miocene of Muddy Creek, Victoria, 

 although it is not recorded nor figured in Mr. Howchin's paper on the Foraminifera 

 of that locality (' Trans. Roy. Soc. S. Australia,' vol. xii, 1889). 



