Transactions of the Society. 
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into a blunt keel ; this character, together with the incipient spiral 
commencement, demonstrates its affinity with the Cristellarians. 
C. linearis was found by Reuss in the “ Speeton clay.” of North 
Germany. 
Found in the Gault at Folkestone in zone xi., 45 ft. from the top, 
rare ; 40 ft., very rare. 
Cristellaria striata sp. nov., plate IX. fig. 2 a, h. 
Test elongate, slightly incurved ; the first few chambers form an 
open spiral, but the shell soon becomes straight. The later chambers 
are well inflated, and their sutural lines strongly impressed. The 
larger of the specimens found has nine chambers. Surface of the 
test decorated with a few longitudinal or oblique striae. Aperture 
marginal and produced into a short neck. Length of the larger 
specimen 1/45 in. 
This species was found in the Gault of Folkestone in zone iii., 
very rare ; zone xi., 45 ft. from the top, very rare. 
Plate IX. ( continued ). 
Fig. 12 a, b. — C. Bronni Romer sp. : a, lateral aspect ; b, face of the last chamber 
X 30. 
„ 13 a, b. — C. Bronni Romer sp. : (another specimen) ci f lateral aspect ; b , face of 
the last chamber, x 50. 
„ 14 a, b. — C. litnola Reuss: a , lateral aspect; b, front peripheral aspect, x 60. 
Plate X. 
Fig. 1. — Cristellaria navicula d’Orbigny : lateral aspect, x 60. 
„ 2 a, b. — C. sulcifera Reuss : a , lateral aspect ; b, front peripheral aspect, x 60. 
„ 3 a, b. — C. triangularis d’Orbigny : a, lateral aspect ; b, front peripheral aspect. 
X 60. 
„ 4 a, b. — C. trunculata Berthelin : a, lateral aspect ; b, front peripheral aspect. 
X 60.' 
„ 5 a, b. — C. oligostegia Reuss : a, lateral aspect ; b, front peripheral aspect. 
X 60. 
„ 6 a, b. — C. tripleura Reuss : a, lateral aspect ; b, front peripheral aspect. X 60. 
„ 7 a, b. — C. scitula Berthelin : a, lateral aspect ; b, front peripheral aspect. 
X 45. 
„ 8 a, b. — C. latifrons Brady : a, lateral aspect ; b, front peripheral aspect. 
X 30. 
„ 9 a, b. — C. Bononiensis Berthelin : a, lateral aspect ; b, front aspect, x 60. 
„ 10 a, b. — C. Italica Defrance sp. : a, lateral aspect; b, front peripheral aspect. 
X 60. 
„ 11 a, 6. — C. vestita Berthelin: a, lateral aspect; 6, front peripheral aspect. 
X 60. 
„ 12 a , b. — C. complanata Reuss : a, lateral aspect ; b, front peripheral aspect. 
X 60. 
„ 13 a, b. — C. Bradyana sp. nov. : a, lateral aspect ; b, front peripheral aspect. 
X 60. 
„ 14 a, b. — C. planiuscula Reus3 : a, lateral aspect ; b, front peripheral aspect. 
X 60. 
