30 DIATOMACER. 
found out of place is Hyndmanii, but as only a few valves 
appeared in the brackish water of Parkgate I cannot suppose 
that it grew there, but had been washed down from its place of 
growth in the fresh water. 
Famity I.--EUNOTIEE—con. 
| 
No. Name. ) Locatiry. OccURRENCE. 
| 
| 
Evnotta, Ehr, 
3 BTCUS, SM. .oeceses | Queen’s Park, Chester ..| May °71 ....2 
55 gracilis, n. sp....... | Storeton Quarry ........ July ’°76 ..vr 
| 17 tetraodon, Ehr. ....| Cwm Bychandeposit ....| ...seececseee r 
Himantipium, Ehr, ) 
| 17 ATCUS, ISM.) “sine seis ele | Cwm Bychan deposit ....] ..ccescseos vr 
males bidens, Ehr........| Cwm Bychan deposit ..:.| ..00s0s0:>5e« r 
| 6 pectinale, Kutz. .... | Canal, Chester .......... Sept. ’7]...v ¢ 
| 17 undulatum ........| Cwm Bychan deposit ....) .......-.45 vr 
FAMILY II.—_MERIDIEZ. 
Meripion, Ag. | 
8 circulare, Ag...... Heron Br. Rock, Chester..| March ’72..v ¢ 
56 constrictum, Ralfs. | Heron Br. Rock, Chester..! Feb. ’72...... r 
FAMILY III.—LICMOPHOREZ. 
Rurpmporynora, Kuz. . 
/ 57 elongatum, Ku/z. ELEN Sasi simu lerallstarchaner ed Sha ins | July ’73 ...vr 
PoposrHeniA, Ehr. | 
* SERDGUIS ole ciie es einioy MOSHI sci ces se'einicre yet | Oct.’77 ...w3 
FAMILY 1V.—FRAGILARIEZ. 
| 
DenticuLta, Kutz. 
59 obtusa, Kutz. .....- Wepre Brook .......... } Aug. 12 jee 
22 sinuata, 2. 8) ...... Hlangollen, 4... -. 00s ss6- Aug. 772...v1r 
Opontipium, Kutz. 
37 Marmsonil, 2.189%. ..2|! MostyMcd)..d.... .wisiedse stolen | July °75 ...vr 
22 mesodon, Kutz. ....| Llangollen .............. | ATE 772... ciel 
24 mutabile, 7. sp..... Combermere ............ March ’73...¢ 
39 tabellaria, 7. sp..... Heron Br. Rock, Chester..) Dec. ’73...v 1 
Fractiartia, Lyng. | 
9 capucina, Kutz. ....| Lache Lane, Chester ....| March ’72..ve 
39 virescens, Ralfs....| Heron Bridge .......... Dec. screw 
