Isopoda over the higher Crustacea; Cetaceans and Seals over the. From Wordnik.com. [Essays] Reference
With over 10,000 species, the order Isopoda is the second most diverse group of crustaceans. From Wordnik.com. [Crustacea] Reference
"This species, if found on earth, would be classified as the order Isopoda and would fall into a class with about two thousand species of lice.". From Wordnik.com. [Deception Point]
Invertebrate stocks that colonized Ascension underwent a variety of evolutionary changes including phyletic evolution leading to endemic status, adaptation to subterranean life (Araneae, Pseudoscorpiones, Collembola, and Psocoptera), character release (phorid Diptera), and probably splitting of lineages (speciation) within the island (Isopoda, Collembola, and gryllid Orthoptera). From Wordnik.com. [Ascension scrub and grasslands] Reference
The same may be said, for example, of the Isopoda and. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Isopoda, and the last pair of feet of the thorax is wanting. From Wordnik.com. [Facts and Arguments for Darwin] Reference
In all other Isopoda the heart is removed towards the abdomen. From Wordnik.com. [Facts and Arguments for Darwin] Reference
All the other limbs are usually well developed in the young Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
As we have already seen, Mysis and the Isopoda depart from all other. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Diastylidae, the Amphipoda and Isopoda, the Ostracoda and Daphnidae, the. From Wordnik.com. [Facts and Arguments for Darwin] Reference
The Rock-Slaters (Ligia) may serve as an example of the development of the Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Isopoda on the one hand, and on the other the rest of the Podophthalma with the Amphipoda?. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Tetradecapoda; the young Isopoda, which are Dodecapoda, are also in this respect further from the "type" than the adults. From Wordnik.com. [Facts and Arguments for Darwin] Reference
To the question, how far the development of Ligia is repeated in the other Isopoda, I can only give an unsatisfactory answer. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Amphipoda and Isopoda over the higher Crustacea; Cetaceans and Seals over the Primates; the civilization of the Esquimaux over that of the. From Wordnik.com. [Lectures and Essays] Reference
The Amphipoda are distinguishable from the Isopoda at an early period in the egg by the different position of the embryo, the hinder extremity of which is bent downwards. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Less varied than that of the Stalk-eyed Crustacea is the mode of development of the Isopoda and Amphipoda, which Leach united in the section Edriophthalma, or Crustacea with sessile eyes. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Amphipoda and Isopoda, in which the last seven segments are always different from the preceding ones in the appendages with which they are furnished, could only be regarded as an inheritance from the same ancestors. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Considering this uniformity presented by the heart in the entire order of the Amphipoda, it cannot but seem very remarkable, that in the very next order of the Isopoda, we find it to be one of the most changeable organs. From Wordnik.com. [Facts and Arguments for Darwin] Reference
With regard to the Crabs, and also to the Isopoda and Amphipoda, we were led to the assumption that, about the period when these groups started from the common stem, a simplification of their process of development took place. From Wordnik.com. [Facts and Arguments for Darwin] Reference
The curvature of the embryo upwards instead of downwards was met with by me as well as by Rathke in Idothea, and likewise in Cassidina, Philoscia, Tanais, and the Bopyridae, -- indeed, I failed to find it in none of the Isopoda examined for this purpose. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Scarcely less striking than the example of the air-breathing Crabs, is the behaviour of the heart in the great section Edriophthalma, which may advantageously be divided, after the example of Dana and Spence Bate, only into two orders, the Amphipoda and the Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
It will remind us of the union of the young Isopoda with the larval membrane and of the unpaired "adherent organ" on the nape of the Cladocera, which is remarkably developed in Evadne and persists throughout life; but in Daphnia pulex, according to Leydig, although present in the young animals, disappears without leaving a trace in the adults. From Wordnik.com. [Facts and Arguments for Darwin] Reference
And if at the present day the majority of the Crabs and Macrura, and indeed the Stalk-eyed Crustacea in general, pass through Zoea-like developmental states, and the same mode of transformation was to be ascribed to their ancestors, the same thing must also apply, if not to the immediate ancestors of the Amphipoda and Isopoda, at least to the common progenitors of these and the Stalk-eyed Crustacea. From Wordnik.com. [Facts and Arguments for Darwin] Reference
"micropylar apparatus," in the Isopoda in the want of the last pair of ambulatory feet -- testifies that the present mode of development has come down from a very early period and extends back beyond the separation of the present families. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Hatchett Biology of the Isopoda of Michigan. From Wordnik.com. [Archive 2007-11-01] Reference
Cryptoniscus, n.g.), and to the Cheliferous Slaters (Tanais), and therefore probably to the great majority of the Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Isopoda) to develop numerous body-segments and limbs whilst still embryos, as they could no longer find room in the egg when extended straight out, and were therefore compelled to bend themselves, this could only take place either upwards or downwards, and whatever conditions may have decided the direction actually adopted, any near relationship to either of the two orders of Edriophthalma could hardly have taken part in it. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Mysis and the Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
Isopoda to the armadilloes and Julus. From Wordnik.com. [Lamarck, the Founder of Evolution His Life and Work] Reference
Isopoda. From Wordnik.com. [Facts and Arguments for Darwin] Reference
(Isopoda.). From Wordnik.com. [Facts and Arguments for Darwin] Reference
1.1.9 Isopoda. From Wordnik.com. [Crustacea] Reference
Keywords: Armadillidium vulgare, Isopoda, Oniscidea, introduced species, Canada. From Wordnik.com. [Archive 2008-03-01] Reference
It may, however, be remarked, that the different curvature of the embryo in the Amphipoda and Isopoda is so far instructive, as it proves that their present mode of development was adopted only after the separation of these orders, and that, in the primitive stock of the Edriophthalma, the embryos were, if not Nauplii, at least short enough in the body to find room in the egg in an extended position, like the larvae of. From Wordnik.com. [Facts and Arguments for Darwin] Reference
LearnThatWord and the Open Dictionary of English are programs by LearnThat Foundation, a 501(c)3 nonprofit.
Questions? Feedback? We want to hear from you!
Email us
or click here for instant support.
Copyright © 2005 and after - LearnThat Foundation. Patents pending.

