O’Meara—Report on the Irish Diatomacee. 409 
Navicula cleviana, N. 8. Marine. 
Valve narrow, elliptical. Strie strongly costate, convergent, 
rounded, and sub-distant in the middle, radiate, linear, and closer 
towards the ends. Two very short coste are interposed in the middle 
between the next which run to the median line; length ‘0084 
breadth :0008. (Plate 34, fig. 8.) 
From stomachs of Ascidians, Broadhaven Bay, Co. Galway. 
Navicula digito-radiata, (Gregory). Fresh water. 
Valve elliptical, with obtuse ends. Strie costate, convergent, and 
distant in the middle, radiate towards the ends; length ‘0028, breadth 
°0008. (Plate 34, fig. 9.) 
Ralfs, in Pritch., p. 904.—Pinnularia digito-radiata, Gregory, Q. 
J. Me Do ldoG, p..9, Fl. 1. ne oZ. Kab. FE Hur. Ale, sect.i.,-p. 213. 
Bowen’s Court, Co. Cork. River Slaney, near Killurin, Co. Wex- 
ford, Lower Lake, Killarney. Caumlough, near Tralee, Co. 
Kerry. River Barrow, near Clonegal, Co. Carlow. Ditch near Kil- 
cool, Co. Wicklow. 
Navicula ergadensis, (Gregory). Marine. 
Valve linear, elliptical, ends obtuse, rounded. Striz costate, con- 
vergent in the middle, radiate towards the ends; length -0026, breadth 
0006. (Plate 34, fig. 10.) 
Ralfs, in Pritch., p- 907.—Pinnularia ere gadensis, Gregory, Q. J. 
M.S. 1856, Pl. y.; fig. 22. Rab. Fl. Eur. Alg., sect. 1., p. 215. 
Portmarnock, Malahide, Co. Dublin. Lough Gill, Co. Kerry. 
Salt ditches near the Town of Galway. 
Nawicula eyprinus, (Ehr.) Marine. 
Valve rhombo-lanceolate, ends somewhat cuneate. Strie costate, 
convergent in the middle, radiate towards the ends; length 0025, 
breadth -0007. gin a4, fie. 14.) 
Kintz,,Bac.; p..99,-2. xxax.,. fie. 35... Bhe species is here ascribed 
to Ehrenberg. The figure, it must be obser ved, is very inadequate to 
describe the species, the ends being rounded instead ‘of cuneate, and 
the strize parallel instead of being as above described. —Pinnularia 
cyprinus, Wm. Sm., B. D. Vol. i., p.iog, BL vxva1.;fig.176., Rap. 
Fl. Eur. Alg., sect. i., p. 215. 
Bannow, River Slaney, near Killurin, Co. Wexford. Lough Foyle. 
Mouth of River Roe, Co. Derry. Seaweeds near Town of Wicklow. 
Malahide, Portmarnock, Dalkey, Co. Dublin. Kilkee, Co. Clare. 
