B. —EÁÀ : 45 
VIIL DIATOMA SWARTZI. 
Daacroma. Swanczirn filis lete viridibus. 
post copulátionem' pinnaetis, D IE Hs 
Irs cuideutatis. : 
Diatotno Smarter, tiae Algar. Svec.. p. S4 
Hobi tat in aquis Stagnantibus & lacubus | Svecim, 
per totam estatem. 
Cuespes flu&uans, pius minus densus, viridis,^ ; 
Jil magnitudine Zyenematis Nitidi (Covjur. Nitide 
Disp.. planea, fragillima, squalia, nec versus apicem. 
attenuata, simplicia, ariüculata, strato viridi miedio 
'percursa, margine hyalina, demum singulari modo 
immediate copulata, tandem in articulos soluta- 
"rticuli: diamétro dimidio repo. bidentati, medio 
; virides, margine hyalini. 
In statu copulationis 77/5 — conjungun- 
tur, & articuli alterni solvuntur, ita ut fila Conjun- 
6a pinnata appareant, J'zzze ex duobus erüculis co- 
herentibus constitute, opposite, 4dentaté, ad geni. 
cula virides, ceterum hyalinc, ens 
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