Zoological nomina with typus or typicus as the specific epithet

Bionomina ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 1-21
Author(s):  
ALESSANDRO MINELLI

More than one hundred nomina with typus as the specific epithet were introduced between 1810 and 1999. These nomina are discussed in respect to the different notions of typicality—morphological, taxonomic and nomenclatural—that may have motivated the use of this epithet by different authors in different times and the significance of these epithets in respect to the changing practice and regulation of zoological nomenclature since the time of the Strickland Report (1842). Traditions specific to particular higher taxa and shared usage of the typus epithet by zoologists in close contact with each other are suggested. Nomina with typicus (-a, -um) as the specific epithet are also briefly discussed.

Bionomina ◽  
2015 ◽  
Vol 8 (1) ◽  
pp. 1-10
Author(s):  
Alain Dubois

The absence in the Code of Rules for the nomenclature of zoological taxa above the rank superfamily is an impediment to universal and unambiguous communication about the higher taxonomy of animals. Pending the possible fixing of the Code in this respect, it appears justified to develop a set of simple ‘guidelines’ which could be adopted consensually by the taxonomists who wish so. They could include: (1) the convention that the ‘same name’ given to different higher taxa results in the existence (and therefore availability) of different homonymous nomina, having different authors and dates; (2) the convention that a nomen of higher taxon first introduced clearly as a scientific, not vernacular, name but in a non-Latin form, and that was latinised subsequently in the literature, should be credited to the author of the original work; (3) the need to ‘protect’ the best known and most often used higher zoological nomina (sozonyms and sozodiaphonyms), with the dominant meanings and spellings that they have had for decades or centuries in the biological literature, irrespective of being or not the first ones to have been proposed for the taxa at stake or among homonyms; (4) the implementation of the Principles of Homonymy and of Priority among all the other nomina of higher taxa. These proposals are illustrated by examples in amphibian higher nomenclature, concerning the well-known nomina Amphibia and Batrachia, which have been the matter of recent controversies. An unexpected finding is reported here: that a similar debate on this same question developed in the years 1889–1910, mostly in the journal Science, and was closed by a clear and simple solution, which has fallen into complete oblivion since then. This suggests that our databases are incomplete and that we should be more humble in our debates than we often are, as we are still missing important pieces of information on the past literature.


Bionomina ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 1-104 ◽  
Author(s):  
Alain DUBOIS

At the beginning of the century of extinctions, science has only inventoried a very small proportion of the living species of the globe. In order to face the taxonomic urgency that results from this taxonomic gap combined with the biodiversity crisis, zootaxonomy needs efficient, rigorous and automatic nomenclatural Rules, that allow to spend a minimal time on nomenclatural problems—rather than investing time, energy and money in renaming millions of already named taxa in order to follow alternative nomenclatural systems, e.g., “phylogenetic” ones, that furthermore do not show theoretical superiority to the current Linnaean-Stricklandian one. The current Code, result of a 250-year improvement process, is based on very sound and healthy Rules, being theory-free regarding taxonomy, relying on objective allocation of nomina to taxa by a system of ostension using onomatophores, and on an objective basic Principle, priority, for recognizing the valid nomen of a taxon in case of synonymy or homonymy. Nevertheless, this nomenclatural system is certainly not perfect. It should be modified at least in nine directions: (1) it should adopt a technical terminology avoiding possible misinterpretations from outsiders of the field and even from specialists, and allowing a precise formalisation of its mode of functioning; (2) its plan should be drastically modified; (3) its Principles should be redefined, and some added; (4) material evidence for the allocation of nomina to taxa through specimens deposited in permanent collections should be given more weight; (5) it should incorporate all nomina of higher taxa, providing clear and strict universal Rules for their naming, whereas conserving the traditional nomina largely used in non-specialized systematic literature; (6) it should allow for the recognition of many more ranks at lower nomenclatural levels, i.e., just above genus, between genus and species, and below species; (7) it should provide much more stringent Rules for the protection against priority of “wellknown” nomina or sozonyms; (8) various “details” should be addressed, various Rules and Recommendations changed before a new edition of the Code is published; (9) the procedure of implementations of changes in the Code should be modified in order to involve zootaxonomists of the whole world in the decisions. In several instances, the Rules of the Code should become much more compulsory for all zoologists, editors and publishers, to avoid the publication of endless and sometimes most detrimental discussions among taxonomists which give a poor image of nomenclature and taxonomy among the biological sciences, such as bitter discussions about the “best” nomen to be used under a so-called “usage” philosophy, or about nomina to be applied to higher taxa. Code-compliance in zootaxonomic publications should be highlighted, and editors and publishers should require from authors who follow alternative nomenclatural Rules (or no rule at all) to make it clear by using particular modes of writing their nomina. It is argued here that if the Code of the 21st century does not evolve to incorporate these changes, it will prove unable to play its role in front of several important recent theoretical and practical developments of taxonomy and run the risk of being abandoned by a part of the international community of zootaxonomists. The latter could then adopt alternative “phylogenetic” nomenclatural Rules, despite the severe practical problems and theoretical flaws posed by such projects. This would be most detrimental for all comparative biological disciplines including systematics, and even for the unity of biology. In the course of this discussion, a few recommendations are given concerning the standards and guidelines suggested by recent authors for a good, modern, integrative taxonomy.


Bionomina ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 1-43
Author(s):  
ALAIN DUBOIS

       This paper explores two aspects of the question of the allocation of nomina to taxa in zoological nomenclature.       The widespread belief that this allocation is effected only through onomatophores (‘types’) is shown to be wrong: if onomatophores only were involved, each zoological nomen would apply to all the taxa including the specimen(s) designated as onymophoront of each species-series nomen, up to the animal kingdom. Onomatophores do not provide the limit(s) of the taxon/taxa to which they apply. These limits are provided by two other pieces of information: the nominal-series to which the nomen of a taxon is assigned and the onomatostasis of this nomen, i.e. the onomatophore of the sister-taxon of the taxon under consideration.       In species-, genus- and family-series nomenclature, the onomatostasis of a nomen is not fixed but depends on the ergotaxonomy (working classification) adopted, which is ideally based on at least one accepted phylogenetic hypothesis. The situation is more complex in the class-series nomenclature. So far, the stages of taxonomic allocation and nomenclatural validity in this nomenclature have not been regulated by formal Rules shared by all zootaxonomists, so that chaos and miscommunication are in order regarding the Criteria to be used in these domains, which is detrimental to zoological nomenclature and its perception by the international scientific community. The adoption of clear and strict Rules in this respect appears as an urgent need. These Rules should allow both to provide clear objective Criteria for the allocation of class-series nomina to taxa, but also to validate the few very well known and consensually adopted class-series nomina (pansozonyms). For this purpose, five possible nomenclatural systems of allocation of nomina are compared. The best solution appears to have two different systems, one for almost all nomina (distagmonyms), and one only for pansozonyms. The latter system relies on a special kind of onomatostases, which are fixed and do not depend on the classification adopted: this allows to attach permanently these nomina to some well-known higher taxa, whatever changes are brought to the cladistic hypotheses and ergotaxonomic frames.


Zootaxa ◽  
2006 ◽  
Vol 1337 (1) ◽  
pp. 1 ◽  
Author(s):  
ALAIN DUBOIS

Several proposals have recently been published regarding the possible incorporation of nomenclature of higher taxa (class-series nomina) into the International Code of Zoological Nomenclature. Some basic questions related to this problem are discussed here. Introducing standard endings for the nomina of these taxa would probably be a kind of hara-kiri for LinnaeanStricklandian nomenclature of higher taxa: it would upset nomenclatural stability by introducing many new nomina and abandoning most of the nomina that have been in constant use in zoology for a long time to other nomenclatural systems alternative to the Code. Nomina of higher taxa should rather all belong in a single nominal-series, the class-series. They should not be submitted to a Rule of Coordination (except for identical taxa of different ranks), and their allocation to taxa should not be made through extensional or intensional definitions, but through ostension with a special system combining onomatophores (the conucleogenera) and onomatostases (the alienogenera). This system provides clear, unambiguous, stringent and universal Rules for the nomination of higher taxa in the future, compatible with all taxonomic systems including “phylogenetic” ones, while respecting the freedom of taxonomic thought and actions, as well as the tradition long attached to nomina of higher taxa in zoology.


Bionomina ◽  
2011 ◽  
Vol 3 (1) ◽  
pp. 45-62
Author(s):  
Alain DUBOIS

The Draft BioCode (DBC) is the result of an attempt at unifying the nomenclatural Rules currently in force in different taxonomic domains (mostly zoology and botany), which are the result of a long historical process during which they have widely diverged in several important respects. The proposals of the DBC tend to extend several basic concepts and idiosyncrasies of botanical nomenclature to other fields, mostly zoological nomenclature. This is unfortunate, as in several cases the zoological Rules can be argued to be more appropriate, especially to meet the new challenges that biological nomenclature will be facing in the 21st century. The DBC is not ripe and its implementation in its present form should not be accepted by the international community of taxonomists, and particularly by zoologists. Among the many problems that would remain to solve before considering this possibility, the following ones are particularly stressed here: (1) the need of a better plan for this document and of a better technical terminology for nomenclatural concepts and tools; (2) the abandonment of absolute ranks and their replacement by relative ranks in the frame of a small number of nominal-series within which a Principle of Coordination is in force; (3) the adoption of more precise, stringent and unambiguous Rules for the nomenclature of higher taxa of the class-series; (4) the dissociation, in the nomenclatural process, between the stage of creation of nomina and that of their registration, which should not be compulsory; (5) the suppression of all prescriptions regarding the use of any language in taxonomic and nomenclatural publications; (6) the need of more stringent Rules for homonymy between “similar” nomina.


Author(s):  
Z. Hruban ◽  
J. R. Esterly ◽  
G. Dawson ◽  
A. O. Stein

Samples of a surgical liver biopsy from a patient with lactosyl ceramidosis were fixed in paraformaldehyde and postfixed in osmium tetroxide. Hepatocytes (Figs. 1, 2) contained 0.4 to 2.1 μ inclusions (LCI) limited by a single membrane containing lucid matrix and short segments of curved, lamellated and circular membranous material (Fig. 3). Numerous LCI in large connective tissue cells were up to 11 μ in diameter (Fig. 2). Heterogeneous dense bodies (“lysosomes”) were few and irregularly distributed. Rough cisternae were dilated and contained smooth vesicles and surface invaginations. Close contact with mitochondria was rare. Stacks were small and rare. Vesicular rough reticulum and glycogen rosettes were abundant. Smooth vesicular reticulum was moderately abundant. Mitochondria were round with few cristae and rare matrical granules. Golgi complex was seen rarely (Fig. 1). Microbodies with marginal plates were usual. Multivesicular bodies were very rare. Neutral lipid was rare. Nucleoli were small and perichromatin granules were large. Small bile canaliculi had few microvilli (Fig. 1).


Author(s):  
Kenneth S. Vecchio

Shock-induced reactions (or shock synthesis) have been studied since the 1960’s but are still poorly understood, partly due to the fact that the reaction kinetics are very fast making experimental analysis of the reaction difficult. Shock synthesis is closely related to combustion synthesis, and occurs in the same systems that undergo exothermic gasless combustion reactions. The thermite reaction (Fe2O3 + 2Al -> 2Fe + Al2O3) is prototypical of this class of reactions. The effects of shock-wave passage through porous (powder) materials are complex, because intense and non-uniform plastic deformation is coupled with the shock-wave effects. Thus, the particle interiors experience primarily the effects of shock waves, while the surfaces undergo intense plastic deformation which can often result in interfacial melting. Shock synthesis of compounds from powders is triggered by the extraordinarily high energy deposition rate at the surfaces of the powders, forcing them in close contact, activating them by introducing defects, and heating them close to or even above their melting temperatures.


2006 ◽  
Vol 175 (4S) ◽  
pp. 549-549 ◽  
Author(s):  
Charles D. Scales ◽  
David Kang ◽  
Ravi Munver ◽  
Brian K. Auge ◽  
Wesley Ekeruo ◽  
...  

1994 ◽  
Vol 07 (04) ◽  
pp. 180-182
Author(s):  
N. Gofton ◽  
Joanne Cockshutt

The AO wire passer can be used as an effective guide for passage of obstetrical saw wire for osteotomy. Use of the wire saw and passer reduces soft tissue trauma by minimizing tissue dissection, and promoting positioning of the saw in close contact with the bone.


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