Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 340
, thatthey can scarcely be accounted as specifically different. Thevalves of this genus are very abundant in the infusorial earthsof Richmond, Bermuda, and Oran (Eig. 101, b, b, b); andmany of the same species have been found recent in guano,and in the seas of various parts of the world. The… … Heliopelta, Actuiocyclus except by its marginal spines, has received fromProf. Ehrenberg the distinctive appellation of Heliopelta (sun-shield). In the representation here given, the object is deli-neated as seen by the parabolic illuminator (§ 61), whichbrings uito view certain features that can…
Microscopy
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