1888 - 89 .] Mr John Rattray on the Genus Coscinodiscus. 487 
Yszee (Kinker !) ; Table Bay (Weissflog !) ;* Virginia (Hardman !) ; 
Nancoori, Balearic Islands (Cleve and Moller !) ; Melville Bay, 
lat. 75° 27' N., long. 64° 34' W. (O’Meara !) ; * Faeroe Isles 
(Grove !) ; marine deposit, Fiji Islands (Grove !) ; Japan (H. L. 
Smith !) ; Monterey (Cleve, Weissflog !) ; iEgina (Schmidt) ; Cape 
Wankarema, California (Cleve and Moller !) ; Patagonian guano 
(Cleve !); Sta Monica deposit (Grove !). 
Var. Iatius-striata. Sch., Atl., pi. Ivii. figs. 30, 34. — Diam. *1 mm. 
Central space and rosette absent. Markings 3J to 4 in ‘01 mm., 
increasing gradually outwards to about semiradius, again decreasing 
similarly to the border ; fasciculi distinct, rows sometimes slightly 
curved; apiculi absent. Border striae, 6 in ’01 mm. 
Distinguished by the large size of the markings. Sometimes 
associated with C. snbtUis , to which it bears no affinity. 
Habitat. — Cambridge deposit, Barbados (Hardman !);f Bar- 
bados (Cleve !). 
Var. minor. Grun., ibid., 1884, p. 83, pi. iv. (D), figs. 8, 10. — 
Diam. *03 to *04 mm. Central space small and granular, or 
absent. Markings in more straight, less distinctly fasciculate rows ; 
secondary oblique rows indistinct, non-apiculate (excl. G. minor , 
Ehrb.). 
The union of C. minor , as figured in Schmidt’s Atlas , pi. Iviii. 
fig. 40, to the present var., as proposed by Grunow, is erroneous. 
Habitat. — Girgenti and Caltanisetta deposits (Grunow) ; Nancoori 
deposit (Hardman !).J 
Var. genuina. Grun., ibid., 1884, p. 83, pi. iv. (D), fig. 13. — 
Diam. *0325 to T25 mm. Central area small, circular, with but 
few granules. Markings 8 to 10 in ‘01 mm.; apiculi minute, 
interfasciculate. Border sharply defined ; strise delicate, 14 to 16 
in ‘01 mm. — Van Heurck, Typ. Syn. Diat. Belg., No. 534 ; Sch., 
Atl., pi. Ivii. fig. 36 (no name) and 37. G. Szontaghii, Pant., Fossil. 
Bacil. Ung., p. 72, pi. xv. fig. 133. 
Specimens from Bolivia pass into the var. subocellata, Grun. 
* Procured by M f Clintock. 
t In the collection of Julien Deby. 
+ Ibid. 
