242 THE VOYAGE OF H.M.S. CHALLENGES. 



variegata, Cattophyttis dichotoma, Callophyttis tenera, Kallymenia dentata, Gigartina 

 radida, Iridcea capensis, Iridcea laminarioides, Epymenia variolosa, Halymenia latis- 

 sima, Ceramium rubrum, Ceramium diaphanum, Ptilota eatoni, Ballia callitricha. 

 Call it In minion simile, Callithamnion ptilota, Callithamnion rothii, Codium adhcerens, 

 Codium tomentosum, Bryopsis plumosa, Vaucheria dillwynii, Ulva latissima, Ulva{ ') 

 cristata, Porphyra laciniata, Porphyra vulgaris, Enteromorpha compressa, Entero- 

 morpha intestinalis, Prasiola jtuviatilis, Cladophora rupestris, Cladophora arcta, 

 Cladophora simpliciuscula, Cladophora Jlexuosa, Rhizoclonium riparium, Rhizoclonium 

 ambiguum, Chcetomorpha linum. 



KLGM AQU^E DULCIS. 1 



Stauroneis goeppertiana, Stauroneis anceps, Stauroneis phcenicenteron, Aclinanthes 

 exilis, Larirella diaphana, Campylodiscus n. sp., Gomphonema brebissonii, Amphiprora 

 n. sp., Navicula ettiptica, Navicula dicephala, Navicula minutissima, Navicula sp., 

 Amphora gracilis, Pinnularia viridula, Pinnularia viridis, Pinnularia spp., 

 Synedra vaucheria?, Eunotia pectinalis, Denticula thermalis, Cymbella gastroides, 

 Chroococcus macrococcus, Microcystis olivacea, Microcystis parasitica, Glocethece 

 involuta, Glowcapsa magna, Anacystis marginata, Leptothrix hyalina, Lyngbya 

 major, Limnactis minutula, Dasyactis kunzeana, Mastigothrix articidata, Masti- 

 gothrix ceruginea, Mastigothrix minuta, Iiydrocoleum eatoni, Nostoc hydrocoleoid.es, 

 Nostoc polysaccum, Nostoc poly sporum, Nostoc sp., Nostoc paludosum, Nostoc leptonema, 

 Anabaina confervoides, Anabaina involuta, Ilormosiphon leptosiphon, Hormosijmon 

 coriaceus, Schizosiphon kerguelcnsis, Tolypothrix flaccida, Tolypothrix ncegelii, Schizo- 

 thnx hyalina, Sirosiphon vermicularis, Sirosiphon pulvinatus, Sirosip>hon n. sp., Sirosi- 

 phon kerguelcnsis, Sirosiphon oliveri, Sirosiphon secundatus, Glceocystis vesiculosa, 

 Palmella mucosa, Pleurococcus vestitus, Pleurococcus angulosus, Scenedesmus acutus, 

 Botryococcus braunii, Oocystis ncegelii, Dictyosphceriwrn ehrenbergii, Pediastrum 

 illipticum, Asterosphcerium elegans, Glceocystis botryoides, Glceococcus sp., Polyedrvwm 

 tetrcePricu/m, Polyedrium minimi, Chlamydococcus sp., Cosmarium pseudo-nitidulum, 

 Cosmarium crenatum, Staurastrum kerguelense, Euastrum binale, Palmoglcea sp., 

 \ aucherta sessilis, Vaucheria sericea, Vaucheria pachydermia, Vaucheria geminata, 

 Olpidium caudatvm, Chytridium pyriforme, Microthamnion cladophoroides, Stigeo- 

 cloniwm hookeri, Stigeoclonium subtile, Choreoclonium procumbens, Draparnaldia 

 subtilis, Drapurualdia distans, Proterderma viride, Zygogonium toridosi, Zygogonium 

 tenuissimum, Spirogyra longata, Spirogyra sp., Sirogonium sticticum, Zygnema 

 vaucheri, Zygnema affinc, Bulbochcete spp., Oedogonium delicatulum, Oedogonium sp., 

 Coleochcete scutata, Coleochcete irregularis, Aphanochcete repens, Gongrosira paehyderma, 

 Rhizocladia repens, Batrachospermum minutissimum. 



1 By Dr. P. F. Keinsch in Phil. Trans. Roy. Soc. Lond, clxviii. pp. 65-92, 1879. 



