1888 - 89 .] Mr John Rattray on the Genus Coscinodiscus. 563 
C. suboculatus, sp. n. Sell., Atl. } pi. lxi. fig. 5 (no name) — ■ 
Diam. *1 1 35 mm. Surface convex towards the border. Central 
space minute, rosette distinct. Markings polygonal, increasing 
from the rosette to the semiradius, thence gradually decreasing to 
the border ; towards the centre 4, at semiradius 3, in *01 mm. 
Central dots distinct. Border sharply defined, about T L of radius 
broad ; striae coarse, moniliform, 4 in *01 mm. 
According to Grunow, this is allied to C. oculus-iridis. It is, 
however, readily distinguished by its more robust markings and its 
broader border. 
Habitat. — Springfield, Barbados (Schmidt). 
C. joacificus , Rattray. C. oculus-iridis , var.? pacifica, Grun., 
Benk. Wien. Ak ., 1884, p. 77. — Diam. *25 mm. Central space absent 
or small ; rosette distinct. Markings polygonal, decreasing from the 
centre to the border ; towards the centre 4, towards the border 6, 
in -01 mm. ; rows radial, straight, or subparallel; secondary oblique 
decussating rows evident. Border indistinct. — Sch., Atl., pi. lx. 
fig. 13 (no name); C. asteromphalus, Ehrb.? fide Grun., ibid,, 1884, 
p. 77. 
Habitat. — Monterey (Schmidt). 
C. intermixtus , sp. n. — Diam. *224 mm. Surface almost flat. 
Central space absent ; rosette distinct. Markings hexagonal, 
increasing subregularly from the rosette outwards; towards the 
centre 4, near the border 2J, in - 01 mm.; at J- of the radius from 
the centre a distinct zone about ’01 mm. broad, of much larger, 
unequal and irregularly arranged areolae for the most part in 3 
rows, those at the centre being largest ; the central papillae evident, 
rows straight. Border narrow, sharply defined; striae 4 to 6 in 
*01 mm., well marked. — (PI. I. fig. 13.) 
Habitat. — Santa Monica deposit (Weissflog !). 
C. Monicoe , Rattray. O. Janischii , var.? Monicce , Grun., Denk. 
Wien. Ak ., 1884, p. 76. — Diam. -2275 mm. Central^space rounded, 
about, of diam. broad. Markings around the central space large, 
free, circular, or elliptical, forming a distinct single hand, beyond 
this obtusely angular, subpearly, with faint central dots, gradually 
increasing from the central space for about ^ of the radius, again 
