Vermes
In today's world, Vermes is a highly relevant topic that continues to generate interest and debate. From its origins to its impact today, Vermes has been the subject of study and analysis in different areas. Its influence on society, its evolution over time and its role in people's daily lives are aspects that have aroused the curiosity of experts and fans alike. In this article, we will explore the impact of Vermes in depth, analyzing its importance, its repercussions and the different perspectives that exist on this topic. Through a multidisciplinary approach, we will try to shed light on key aspects related to Vermes, providing a complete and nuanced view.
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Vermes ("worms") is an obsolete taxon used by Carl Linnaeus and Jean-Baptiste Lamarck for non-arthropod invertebrate animals.
Linnaeus
In Linnaeus's Systema Naturae, the Vermes had the rank of class, occupying the 6th (and last) slot of his animal systematics. It was divided into the following orders, all except the Lithophyta containing (in modern terms) organisms from a variety of phyla:
- Intestina, including horsehair worms, earthworms, roundworms, liver flukes, leeches, hagfishes, and shipworms
- Mollusca, including slugs, sea slugs, polychaetes, sea mice, priapulids, salps, jellyfish, starfish, and sea urchins
- Testacea, including chitons, barnacles, clams, cockles, nautiluses, snails and serpulid worms
- Lithophyta, including various corals
- Zoophyta, including bryozoans, coralline algae, Hydra, sea pens, tapeworms, and Volvox
Apart from the Mollusca, understood very differently from the modern phylum of that name, Linnaeus included a very diverse and rather mismatched assemblage of animals in the categories. The Intestina group encompassed various parasitic animals, among them the hagfish, which Linnaeus would have found in dead fish. Shelled molluscs were placed in the Testacea, together with barnacles and tube worms. Cnidarians (jellyfish and corals), Echinoderms and polychaetes were spread across the other orders.
Lamarck
Linnaeus's system was revised by Jean-Baptiste Lamarck in his 1801 Système des Animaux sans Vertebres. In this work, he categorized echinoderms, arachnids, crustaceans and annelids, which he separated from Vermes.
Modern
After Linnaeus, and especially with the advent of Darwinism, it became apparent that the Vermes animals are not closely related. Systematic works on phyla since Linnaeus continued to split up Vermes and sort the animals into natural systematic units.
Of the classes of Vermes proposed by Linnaeus, only Mollusca has been kept as a phylum, and its composition has changed almost entirely. Linnaeus's early classification of the soft-bodied organisms was revolutionary in its day. A number of the organisms classified as Vermes by Linnaeus were very poorly known, and a number of them were not even viewed as animals.
References
- ^ Linnaeus, Carl (1758). Systema Naturae (10th ed.). pp. 641–643.
- ^ Damkaer, David (2002). The copepodologist's cabinet : a biographical and bibliographical history. Philadelphia, Pa: American Philosophical Society. ISBN 978-0-87169-240-5. OCLC 47893671.