22 P. T, CLEVE, ON SOME NEW DIATOMS. 
Cyclotella Korz. 
1. Cyclotella Meneghiniana var.? stelligera Cu. et Grun. 
Disc with marginal strie, about 14 in 0,01 mm., and with a central star of ra- 
diating lines, alternately shorter and larger. 
Diam. 0,022 mm. 
Pl. V, fig. 63, *°°/,. a. Specim. from New Zeeland; c. small specimen from 
Lac de Gerardmer (Vosgues). 
New Zeeland, Rotorua Lake, coll. by S. Beraeren. 
Another variety stellulifera GruN. is represented by the fig. b. and is characte- 
rized by the granulate strie. 
Liradiscus Grev. 
1. Liradiscus (?) Capensis Cu. N. Sp. 
Circular, with a narrow, striate margin (with 15 striez in 0,01 mm.). Disc co- 
vered with curved and branching, but not anastomosing lines or markings, which do 
not form a coherent network. 
Diam. 0,04 mm. 
Pl. ¥, digs Gly 4. 
Marine, Cape of Good Hope in a slide sent by Mr. F. Haucx. 
Of the genus Liradiscus only four species are known, all fossil from Barbados 
deposit. Our form, if it really belongs to Liradiscus, is the first known as recent. It 
is doubtful if it not would be better to place it in Cyclotella, as it has some relation- 
ship to C. striata Ktrz. or C. Dallasiana. 
Auliseus Bat. 
1. Auliscus (?) insignis Cu. N. Sp. 
Disc almost orbicular with 2 rounded, not truncate processes, and divided by a 
large cruciform blank area in to four compartments. The compartments have a very 
singular structure and seem to be covered with irregular depressions. In the F. V. they 
are elevated and the processes rounded. 
Diam. 0,12 mm. 
Pl. ¥; fies Gay ae OP Be Ve de OG Be Vo 
Gallapagos Island extremely rare (Eugenie Exp.). 
I am unacquainted with any Auliscus having the rounded processes of this glo- 
rious species; it should perhaps be placed in the genus Cerataulus. 
Annother remarkable species of Auliscus (4. Ralfsianus Grev.) hitherto known 
only in a fossil state from the Barbados Deposit, occurs in the extremely interesting 
Gallapagos material. 
