MARINE: DIATOMACEZA OF THE L.M.B.C. DISTRICT. 7 
Hyalodiscus (Ehy.) stelligis, Bail. Surface of Dee, rare. 
leg 
scoticus, Grun. Mostyn, common. 
Licmophora (Ag.) gracilis, Grun. Mostyn, rare. 
L. anglica, Grun. Rhyl, rare. 
L. dalmatica, Kutz. Dingle Bay, Comber’s list. 
Lauderia (Cleve.) delicatula, Peragello. Surface of Dee, 
rare. This form I found with Hucampia striata, in 1879, 
and thought it a stage of growth of that form, but I think 
Peragello is right in placing it in the genus Lauderva. 
Mastogloia (Theo.) lanceolata, Th. Puddington Marsh, 
rare. 
1 
smithw, Th. Mostyn, common. 
Melosira (Ag.) borrert, Grev. Rhyl, rare. 
M. nummuloides, Bory. Helsby Marsh, common. 
M. sulcata, Ehr. Surface of Dee, rare. 
M. westii, W.Sm. Connah’s Quay, rare. 
Navicula (Dn.) abrupta, Greg. Surface of Dee, very rare. 
See oe ea 
. estiva, Dn. Colwyn Bay, rare. 
. afinis, Ehr. Helsby Marsh, rare. 
. aspera, Ehr. Colwyn Bay, common. 
. boeckit, Herberg, Burton Marsh, rare. 
. bombus, Ehr. Mostyn, common. 
. carassius, Ehr. Mostyn, rare. 
. clepsydra, Khr. Colwyn Bay, rare. 
. crabro, Khr. Connah’s Quay, common. 
. cyprinus, Ehr. Mostyn, rare. 
. didyma, Khr. Bagilt, rare. 
. distans, W.Sm. Helsby Marsh, rare. 
N. fortis, Greg. Mostyn, rare. 
N. fusca, Greg. Mostyn, rare. 
N. fusiformis, Grun. Mostyn, very rare. 
yi: 
granulata, Breb. Rhyl, rare. 
