. Ants; their structure, development and behavior. lood, transformingthem and returning them to the circulation in such a form that theycan be absorbed and excreted by the Malpighian vessels (Cuenot).Some authors are of the opinion that these pericardial cells also giverise to the amoebocytes. that they constitute, in other words, a hasmato-poetic organ. The oenocytes are glandular cells which arise in seg-mental clusters from the ectoderm of the embryo just behind the trachealinvaginations. In the ants these cells are very small and in the adultscattered about among the fat cells. They are ve
. Ants; their structure, development and behavior. lood, transformingthem and returning them to the circulation in such a form that theycan be absorbed and excreted by the Malpighian vessels (Cuenot).Some authors are of the opinion that these pericardial cells also giverise to the amoebocytes. that they constitute, in other words, a hasmato-poetic organ. The oenocytes are glandular cells which arise in seg-mental clusters from the ectoderm of the embryo just behind the trachealinvaginations. In the ants these cells are very small and in the adultscattered about among the fat cells. They are very conspicuous in theyoung larva and still occupy their embryonic position, but in aged ants,according to Janet, they disappear. Like the pericardial cells they areprobably ductless glands, producing some unknown but physiologicallyimportant internal secretion. The fat cells form large masses or packets,often filling out all the spaces of the body cavitv between the viscera,especially during the larval and pupal stages. As the name indicates, ,-d.
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910
