1888 - 89 .] Mr John Rattray on the Genus Goscinodiscus. 459 
largest towards centre, 3 in '01 mm. on the suhmarginal hand 
punctiform, 8 in *01 mm.; rows straight, radial, secondary oblique, 
decussating rows evident on the suhmarginal hand : on the other 
suhquadrate or pentagonal, ’6 in - 01 mm.; crowded interspaces ab- 
sent, secondary rows concentric, evident. Apiculi on both valves 
prominent, inserted at inner edge of marginal hand at intervals of 
•0075 to - 01 mm. Border sharply defined, strise evident, 8 in ‘01 
mm. — Cestodiscus pulchellus, Cleve and Moll., Diat ., No. 162. 
The name pulchellus cannot be adopted, there being already a 
Goscinodiscus pulchellus, Grev. (see p. 469). I have therefore used 
the name of Hardman’s MS. species superbus , which seems to answer 
to Greville’s description of the type form of Cestodiscus pidchellus. 
Habitat. — Newcastle Estate, Barbados, abundant (Grove ! Rae 1 
Hardman!); Nancoori (Cleve and Moller! Cleve !). 
Yar. nova-zealandica , Grove MS. — Diam. ‘0675 mm. Surface 
without a defined hand adjacent to the border. Markings 
rounded, granular, 3 in *01 mm., somewhat smaller towards border; 
rows radial, obscure, irregular concentric rows manifest towards 
border ; interspaces hyaline, largest towards centre ; apiculi evident 
at intervals of *0075 to '0175 mm. Border evident ; striae distinct, 
8 in *01 mm. — (PL II. fig. 15.) 
Habitat. — Oamaru deposit (Grove !). 
Yar. moravica, nov. C. pulchellus , var. moravica , Grun., Pant. 
Fossil. Bacil. TJng ., p. 73, pi. xxvii. fig. 260. — Diam. -07 mm. 
Central space absent. Markings rounded, granular, decreasing 
rapidly from the centre outwards, towards the border punctiform, 
most crowded; rows radial, alternately longer and shorter; apiculi 
large, numerous at regular intervals, inserted a short distance from 
the border. 
Habitat. — Als6-, Eelso-Esztergaly, Kekko, Szakal, Szent Peter 
deposits; Briinn Tegel; Newcastle deposits, Barbados (Pantocsek !). 
G. pusillus, Grove MS. — Diam. *08 mm. Surface with a distinctly 
defined hand adjacent to border. Central space absent. Markings 
angular, subequal, 8 in *01 mm., on the hand adjacent to the border 
punctiform, in radial strise 10 in '01 mm.; minute subulate clear 
spaces opposite origin of shorter rows, evident within semiradius ; 
