| 单词 | cirripede |
| 例句 | The Complemental males of certain cirripedes live like epiphytic plants either on the female or hermaphrodite form, and are destitute of a mouth and prehensile limbs. The Descent of Man and Selection in Relation to Sex, Vol. I 2011-01-17T03:00:49.523Z The ultimate segment has on the middle of the outer margin, in A. cornuta, two minute spines, which I have not observed in any other cirripede: on the summit there are the usual spines. A Monograph on the Sub-class Cirripedia With Figures of all the Species. While on the coast of Chili he had found a curious new cirripede, to understand the structure of which he had to examine and dissect many of the common forms. Great Men and Famous Women. Vol. 4 A series of pen and pencil sketches of the lives of more than 200 of the most prominent personages in History So again the two main divisions of cirripedes, the pedunculated and sessile, which differ widely in external appearance, have larv� in all their stages barely distinguishable. On the Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. (2nd edition) If one rare cirripede, the Anelasma squalicola, had become extinct, it would have been very difficult to conjecture how so enormous a change could have been gradually effected. Insectivorous Plants Certain hermaphrodite cirripedes are aided in their reproduction by a whole cluster of what I have called complemental males, which differ wonderfully from the ordinary hermaphrodite form. The Different Forms of Flowers on Plants of the Same Species The several species occur imbedded in soft calcareous rocks, in massive corals, and in the shells of mollusca and of cirripedes. A Monograph on the Sub-class Cirripedia With Figures of all the Species. I can add only one miserable little special case of advancement in cirripedes. More Letters of Charles Darwin — Volume 2 I have re-read many parts, especially that on cirripedes, with the liveliest interest. More Letters of Charles Darwin — Volume 1 Thus in the 'Origin,' page 440, there is a description of a larval cirripede, "with six pairs of beautifully constructed natatory legs, a pair of magnificent compound eyes, and extremely complex antennae." Life and Letters of Charles Darwin — Volume 1 So again the two main divisions of cirripedes, the pedunculated and sessile, though differing widely in external appearance, have larvae in all their stages barely distinguishable. The Origin of Species by means of Natural Selection, 6th Edition One more, and the most important special relation between the parasites and the cirripedes to which they are attached, remains to be noticed, namely that of their prehensile larval antenn�. A Monograph on the Sub-class Cirripedia With Figures of all the Species. These cirripedes have no branchiae, the whole surface of the body and sack, including the small frena, serving for respiration. On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life These cirripedes have no branchiae, the whole surface of the body and of the sack, together with the small frena, serving for respiration. The Origin of Species by means of Natural Selection, 6th Edition The Balanidae or sessile cirripedes, on the other hand, have no ovigerous frena, the eggs lying loose at the bottom of the sack, in the well-enclosed shell; but they have large folded branchiae. On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life The ovigerous frena of certain cirripedes, which have ceased to give attachment to the ova and are feebly developed, are nascent branchiae. The Origin of Species by means of Natural Selection, 6th Edition So again the two main divisions of cirripedes, the pedunculated and sessile, which differ widely in external appearance, have larvae in all their several stages barely distinguishable. On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life |
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