Prof. W. Smith on the Diatom aceae of the Pyrenees. 



1. Marine or Brackish-water Forms, 

 Number of gatherings made, 8. 



Epithemia Musculus 1 



Amphora affinis 2 



salina 1 



• membranacea 1 



Coccoueis Scutelhim 6 



Scutellum, var. /3 3 



diaphana 3 



diaphana, var. /3 2 



Coscinodiscus eccentricus 2 



radiatus '6 



Eupodiscus sculptus 1 



Actiuocyclus undulatiis 4 



Cyclotella Kiitzingiana 2 



Campylodiscus cribrosus 1 



parvulus 1 



bicostatus 1 



Surirella striatula 2 



ovata 2 



Gemma 3 



fastuosa 2 



constricta 1 



Trybhonella Scutellum 1 



gracihs 2 



marginata 2 



acuminata 3 



levidensis 1 



constricta 2 



Nitzschia scalaris 1 



Tienia 2 



bilobata 2 



Sigma 3 



angularis 2 



spathulata 1 



Closterium 1 



Amphiprora alata 2 



Navicula didyma 4 



punctulata 1 



Smithii 2 



Liber 1 



pusilla 2 



Crabro 1 



pygmsea 2 



palpebralis 3 



Navicula Hennedyii 2 



Westii 2 



Pinnularia peregrina 5 



gracilis 2 



Cyprinus , 3 



directa 2 



Stauroneis pulchella 2 



pulchella, var, ^ 2 



Pleurosigma Balticum 2 



angulatum 1 



rigidum 1 



decorum 1 



Synedra affinis 3 



Gallionii 2 



Gallionii, var. /S 3 



Arcus 2 



tabulata 1 



undulata 1 



Gomphonema marinum 2 



Rhipidophora elongata 2 



Bacillaria paradoxa 1 



Fragilaria striatula 1 



Eucampia Zodiacus 1 



Achnanthes longipes 1 



longipes, var. y 1 



brevipes 1 



Rhabdonema arcuatum 2 



Adriaticum 1 



minutum <. 1 



Gram matophora marina 4 



serpentina 3 



macilenta 2 



Amphitetras antediluviana 1 



Biddulphia pulchella 1 



aurita 1 



Rhombus 1 



Podosira hormoides 2 



Montagnei 2 



Melosira subfiexilis 1 



nummuloides 3 



Orthosira marina 3 



Schizonema cruciger 1 



Grevillii 2 



2. Pyrenean Forms, 

 Number of gatherings made, 56. 



Epithemia Zebra 3 



turgida 2 



rupestris 6 



Argus 3 



gibba 4 



Epithe mia ventricosa 2 



Eunotia Arcus 18 



diodon 1 



Cymbella Helvetica 9 



Helvetica ^ 12 



