International Commission on Zoological Nomenclature

THE "Official List of Generic Names in Zoology" was established by the International Congress of Zoology in order to promote stability in zoological nomenclature by placing on record the correct names of the principal genera in each of the classes and orders of the animal kingdom, together with their type species. Hitherto names have been placed on the "Official List" in Opinions rendered by the International Commission on Zoological Nomenclature, but in 1943, the International Commission decided that it was desirable to make the "Official List" more readily available, and accordingly decided to publish it as soon as possible in convenient book form and with a full index. The preparation of the "Official List" for publication in this way, which was begun in the autumn of 1943, involved the checking of all the relevant bibliographical and other references to the generic names concerned and their type species. In the course of this work, errors were detected in a number of the Opinions containing decisions relating to the "Official List". These errors are being brought at once to the attention of the International Commission with the view of its rendering an Opinion as soon as possible containing such rectifications as may be necessary.

The purpose of this application under Articles 78.1 and 81 of the Code is to request the Commission to use its plenary power to choose among two alternatives in order to preserve the genus name Darevskia and nomenclatural stability. In Alternative A, the Commission is asked to accept the microfiche publication (Arribas, 1997) as a published work in the sense of the Code and made available the names included therein, placing Iberolacerta Arribas, 1997 and Darevskia Arribas, 1997 on the Official List of Generic Names in Zoology, their type species on the Official List of Specific Names in Zoology, and the microfiche edition of Arribas (1997) on the Official List of Works Approved as Available for Zoological Nomenclature. This action will promote stability, as both names are widely accepted and, if the 1997 publication in microfiche is considered unavailable, then Darevskia Arribas, 1997 could potentially be threatened by Caucasilacerta Harris et al., 1998 (by authors who would not consider this name a nomen nudum), which would clearly disrupt stability. Not only would this alternative be the best way to preserve nomenclatural stability as stressed in the ICZN Preamble and repeated in several Articles of the Code, but it would also be the only way to ensure that these names (available at the time of their publication) remain available after the retroactive changes that have been introduced between the third and fourth editions of the Code. If Alternative A is chosen, both Iberolacerta and Darevskia become available from Arribas (1997). In Alternative B, the microfiche publication (Arribas, 1997) is considered invalid and placed on the Official Index of Rejected and Invalid Works in Zoological Nomenclature. Both Iberolacerta and Darevskia would be considered published in Arribas (1999). Also, the Commission is asked to place on the Official Index of Rejected Generic Names in Zoology the name Caucasilacerta Harris et al., 1998 (as a nomen nudum due to the lack of a valid diagnosis) and to place on the Official List of Generic Names in Zoology the names Iberolacerta Arribas, 1999 and Darevskia Arribas, 1999.

On the question whether it is desirable that the name Anguina Scopoli, 1777 (Class Nematoda) should be placed on the " Official List of Generic Names in Zoology "in preference to such names as Anguillulina Gervais & Beneden, 1859, or " Tylenchus" Bas

Direction 10 Determination of the gender to be attributed to the names of sixty genera of mammals placed on the "Official List of Generic Names in Zoology" in the period up to the end of 1936

Proposed addition of the name "Phorodon" Passerini, 1860 (Class Insecta, Order Hemiptera), to the "Official List of Generic Names in Zoology" and of "humuli" Schrank, 1801, as published in the combination "Aphis humuli", to the "Official List of Specific

Supplementary note on the proposal that the generic name Ancylus Muller (O.F.), 1774, and .Acroloxus Beck, 1837 (Class Gastropoda) should be added to the "Official list of generic names in Zoology" support for Dr. Bengt Hubendick's recomme

Opinion 462. Addition to the "Official List of generic Names in Zoology" of the generic name "Mormoops" Leach, 1821 (Class Mammalia)

Proposed correction of an erroneous entry on the "Official List of Generic Names in Zoology" relating to the name Penaeus Weber, 1795 (Class Crustacea, Order Decapoda) (correction of an entry in "Opinion" 104)

Proposed addition to the "Official List of Generic Names in Zoology " of the name Munsteroceras Hyatt, 1884 (Class Cephalopoda, Order Ammonoidea), a corrected form of the name Munstroceras

On the action which it is desirable should be taken to correct the erroneous entry relating to the Name "Astacus" Pallas, 1772 (class Crustacea, order Decapoda) made in the "Official List of generic names in Zoology" by "Opinion" 104

Support for Mr. Francis Hemming's proposal for the correction in the "Official List of Generic Names in Zoology" of the erroneous entry in "Opinion" 104 relating to the name Penaeus Fabricius, 1798 (Class Crustacea, Order Decapod

Proposed use of the plenary powers to validate the generic name "Phrynosoma" Wiegmann, 1828 (Class Reptilia, Order Squamata), a name placed on the "Official List of Generic Names in Zoology" by the ruling given in "Opinion"

Proposed addition of the name "Phorodon" Passerini, 1860 (Class Insecta, Order Hemiptera), to the "Official List of Generic Names in Zoology" and of "humuli" Schrank, 1801, as published in the binomial combination "Aphis humuli", to the "Official List of

Opinion 394 Addition to the Official List of Generic Names in Zoology of the name Portunus Weber, 1795, and to the Official Index of Rejected and Invalid generic names in Zoology of the name Portunus Fabricius, 1798 (class Crustacea, order Decapoda)

Proposed addition to the "Official List of Generic Names in Zoology" of the names of one hundred and two genera of Caridea (Class Crustacea, Order Decapoda), including proposals for the use of the plenary powers (a) to validate the emendation to "Gnathophyllum" of the generic name "Gnatophyllum" Latreille, 1814, and (b) to validate the family-group names "Hippolytidae" Bate, 1888 and