Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 415
both in the valvesand in the connecting hoop ; and thishoop, being silicified, not only connectsthe two new frastules (as at b, Fig. 181),until they have separated from each other, but, after such sepa-ration, remains for a time round one of the frastules, so as to giveit a truncated appearance (a,… … 1st Junta nervosa. DIATOMACEiE :—ANGULIFERE^E ; CH^TOCEREiE. 353 valves, its members more resemble the Goscinodiscece and Eujpo-discece. Of this family we have a characteristic example in thegenus Triceratiuin; of which striking form a considerable numberof species are met with in the Bermuda and…
Microscopy · Biology
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