424 Eh ben bekg: Verbreitung und Ein/Iufs 



Slauropterac plures antea inter Naviculas striatas enumeratae sunt. 



224 Staurosira amphilepta, testula minima, laevis, angulis productis, duo- 



bus oppositis longioribus tenuioribus. 



225 St. construens, testula minima laevis, angulis productis subaequalibus. 



226 St. pinnata, testula minima, sed prioribus speciebus major, pinnata, an- 



gulis productis duobus oppositis longioribus, tenuioribus. 



227 Striatella Thicnemanni, testula elegans, Str. arcuatae simillima, sed 



a latere media gibba. 



228 Surirella? australis, testulae fragmentum lineare, latei-ibus rectis, pin- 



nulis in -L_ lineae 6 recte transversis. Iconl 



229 S. Campylodiscus, testula parva ovato-elliptica, utrinque aequaliter ro- 



tundata flexuosa, more Campylodisci, margine pinnulata , pinnulis in 

 fij lineae 10-12. Iconl 



230 S. decora, testula magna elongata, lateribus utrinque rectis, apicibus 



aequaliter acutis, pinnulis parvis in ^ lineae 4-5. 



231 S. elegans, testulae magnae latissimae fragmentum superficie subtilissime 



punctatum, apice uno subacutum (altero deficiente), pinnulis in ^ li- 

 neae 4. Iconl 



232 -S. euglypta, testula ovato-oblonga minor, laevis, alterö fine graciliore 



utroque obtuso, pinnulis in ^ lineae 7. Iconl 



233 £". ßexuosa, testula major flexuosa, pinnulis in ^lineae 4-5. Iconl 



Fragmentum. S. Campylodisco affinis. 



234 S. Microcora, testula minima laevis lanceolata, apicibus brevibus acutis 



aequalibus, pinnulis in -^ lineae 10. Iconl 



235 S. Myodon, testula parva angusta elongata, levius flexuosa, apice uno 



rotundato (altero deficiente), pinnulis parvis crebris, murium denticu- 

 lorum instar, in J-j- lineae 6-7. Iconl 



236 S. oophaena, testula major, a latere ovata, plicata, altero fine late ro- 



tundato, altero attenuato obtuso, plicis transversis 5, pinnulis parvis 

 in ^ lineae 6. Iconl 



237 S. peruviana, testula maxima anguste lanceolato-elliptica, apicibus aequa- 



liter obtusis, pinnulis minimis, obsoletis, fere 12 in ^ lineae. Iconl 



238 S. Regula, testula minor linearis, lateribus utrinque rectis, plicatis, api- 



cibus cuneatis acutis, plicis senis, pinnulis in -^ lineae fere 10 obso- 

 letis. Iconl 



