«TROCHOSPHERE»に関連する英語の本
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1
The Works of Francis Maitland Balfour, Volume III (of 4)
The most important of allthe larval types is the Trochosphere, and this type is
undoubtedly more closely related to the Pilidium than to the Echinoderm larva.
Mitraria amongst the Chætopods (fig. 233) has, indeed, nearly theformofa
Pilidium, ...
Mollusca passes through two larval stages—trochosphere larva and veliger larva
. The development of trochosphere is same as in polychaete annelids. A free-
swimming trochosphere is found only in some primitive gastropods. In all others ...
3
Stories of the Universe: Animal Life
A very wide spread form of larva, more advanced in its structure than the little
Gastrulathat has been already named, has received the name of Trochosphere
or Wheelball (Fig. 7), becauseit swims round and round, by means ofcilia, usually
...
4
The Invertebrata: A Manual for the Use of Students
The somatoblasi (2d) breaks up into a large number of cells to form the ventral
plate. trochosphere. The change from gastrula to trochosphere (Fig. 197) follows
quickly and with little further cell division. The first quartet of micromeres have by
...
Lancelot Alexander Borradaile, Frank Armitage Potts, G. A. Kerkut, 1963
especial interest that a similar larval form is assumed by some Molluscs, which in
the adult state are so entirely different in their whole organization from worms of
any description. This fact implies that the Trochosphere is an exceedingly ...
This fact implies that the Trochosphere is an exceedingly ancient type of larva,
which must have been possessed at some period by the common ancestor of the
Annelids and Molluscs, and that this period is a very remote one is shown by the
...
7
A Student's Text-book of Zoology: Protozoa to Chaetognatha
246) to the Arfhropoda ; and through the Trochosphere larva to Annelids and
Molluscs. As in the Trochosphere, it is impossible to say whether the perivisceral
space is a coelom or a haemocoele ; probably it is a haemocoele. There is a
further ...
Adam Sedgwick, Joseph Jackson Lister, Sir Arthur Everett Shipley, 1808
It has no doubt certain resemblances to the trochosphere larva of Chaetopoda,
Mollusca, etc., but the differences between the two types are more striking than
the resemblances. It firstly differs from the trochosphere larva in the character of
the ...
9
A Treatise on Comparative Embryology
It has no doubt certain resemblances to the trochosphere larva of Chaetopoda,
Mollusca, etc., but the differences between the two types are more striking than
the resemblances. It firstly differs from the trochosphere larva in the character of
the ...
Francis Maitland Balfour, 1885
10
Forms of Animal Life: A Manual of Comparative Anatomy : with ...
The Trochosphere is probably derived from an organism (Trochozoon)
resembling the early stage of a Turbellarian larva (Miiller's larva), from which the
Nemertean Pilidium is also undoubtedly derived *. The prostomium of the
Trochosphere ...
George Rolleston, William Hatchett Jackson, 1888
