Evenings at the microscope : or, Researches among the minuter organs and forms of animal life (1884)
Gosse, Philip Henry, 1810-1888 · London : Society for Promoting Christian Knowledge · leaf 297
s; they meet onlyat the points, where they oftencross ; the spaces between the basalparts being open. The inner edgesof these are notched with teeth asin P. triphyUat of which those nearthe tips are larger, and cut intosubordinate teeth of exquisiteminuteness. We have here an opportunityof seeing… … HEAD OF PEDICELXARIATBIDENS. SEA-URCHINS AND SEA-CUCUMBERS. 285- are broken, the edge of the fracture is not evren, but jagged,with holes exactly corresponding with the marks inquestion; so that the structure is the same as that of thespines and of all the other solid parts of the Urchin. We will…
Zoology · Microscopy
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