1888-89.] Mr John Rattray on the Genus Goscinodiscus. 485 
slightly curved towards the same direction ; those in each fasciculus 
parallel to the corresponding and more conspicuous side rows ; 
interspaces hyaline. — Sch., Atl., pi. lvii. fig. 32 (no name). 
Habitat. — Springfield deposit, Barbados (Schmidt) ; Cambridge 
deposit, Barbadoes (Kinker !). 
C. Grunowii. Pant., Fossil. Bacil. Ung., p. 74, pi. ix. fig. 74. — 
Diam. -062 to 0*75 mm. Surface flat, slightly convex near the 
border. Central space small, indistinct, almost filled in by isolated 
round granules. Markings obtusely angular, subequal, 7 to 8, 
towards the border more crowded, 9 to 10 in *01 mm.; slightly 
smaller at the centre than on the adjacent area, the central papillae 
prominent; within the border from 10 to 23 small clear rounded 
subregular spaces; rows fasciculate, straight, and radial between 
the centre and the clear spaces near the border, the others parallel 
to these in the corresponding fasciculus. Border striae delicate, 
16 in *01 mm. 
Habitat. — Also-, and Pelso-, Eszterg&ly deposits (Pantocsek !). 
Yar. minor. C. Grunowii forma minor , Pant., ibid., p. 74, pi. xiv. 
fig. 25. — Diam. *024 to *036 mm. Markings punctiform, 10 to 15 
in -01 mm. ; the fasciculi more distinct, the clear spaces within the 
border more irregular, sometimes larger. 
Habitat. — Felso-Esztergaly deposit (Pantocsek). 
O. odontodiscus. Grun., Denk. Wien. Ate., 1884, p. 81, pl.iii. (C), 
fig. 23. — Diam. *0455 to ’1125 mm. Central space absent, but a 
narrow hyaline ring close to the centre. Markings hexagonal, 6 to 
7 in *01 mm., decreasing slightly outwards, punctiform in a narrow 
zone adjacent to the border ; irregular at the centre within the clear 
band, elsewhere in subparallel rows ; secondary oblique decussating 
rows evident; fasciculi evident, the rows composing each parallel 
to that at one of its edges ; apiculi minute, interfasiculate. — Cleve 
and Moll., Diat., No. 57, 162; C. subtilis, var., Sch., Atl., pi. lvii. 
figs. 15, 16 ; Odontodiscus spica, Ehrb., Mon. Ber. Ale., 1845, 
p. 79 ; O. uranus , Ehrb., ibid., 1845, p. 79; C. odontodiscus, var. 
parva-tenuistriata, Cleve and Moll., Diat., No. 276. 
Habitat. — -Richmond, Ya. (Schmidt, Grove! Cleve and Moller !); 
