Perca Luth Walbaum, 1792, a SENIOR SYNONYM of the MEAGRE, Argyrosomus Regius (Asso, 1801) (PERCIFORMES: SCIAENIDAE), INVALIDATED by “REVERSAL of PRECEDENCE”
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7(1): 79-82 (2013) DOI: 10.3153/jfscom.2013008 Journal of FisheriesSciences.com E-ISSN 1307-234X © 2013 www.fisheriessciences.com SHORT COMMUNICATION KISA BİLGİLENDİRME Perca luth Walbaum, 1792, A SENIOR SYNONYM OF THE MEAGRE, Argyrosomus regius (Asso, 1801) (PERCIFORMES: SCIAENIDAE), INVALIDATED BY “REVERSAL OF PRECEDENCE” Paolo Parenti∗ Dipartimento di Scienze dell’Ambiente e del Territorio e di Scienze della Terra, Università di Milano-Bicocca, Milano, Italy Abstract: Perca luth Walbaum, 1792, is shown to be a senior synonym of the meagre, Argyrosomus re- gius (Asso, 1801). Conditions exist, however, to allow “reversal of precedence” of the two names, as provided by Article 23.9.1 of the international Code of Zoological Nomenclature. Thus, Argyrosomus regius (Asso, 1801), is regarded as valid, qualifying as a nomen protectum, while the name Perca luth Walbaum, 1792, is recognized as invalid, qualifying as a nomen oblitum. Keywords: Perca luth, Argyrosomus regius, Nomenclature Özet: Argyrosomus regius (Asso, 1801) (Perciformes: Sciaenidae),’un senior eşlanlamlısı olan Perca luth Walbaum, 1792, isminin “öncelik iptali” Perca luth Walbaum, 1792, ismi Argyrosomus regius (Asso, 1801)’ın senior eşlanlamlısı olarak gösterilmektedir. Koşullar var olduğunda, Uluslararası Zoolojik Adlandırma Kanunu’nun 23.9.1 numaralı kanun maddesi tarafından iki ismin “öncelik iptali” ne izin ver- miştir. Bu nedenle, “nomen oblitum” olarak tanımlanan Perca luth Walbaum, 1792, ismi geçersiz sayılırken, “nomen proctetum (korunan ad)” olarak tanımlanan Argyrosomus re- gius (Asso, 1801) ismi kabul görmektedir. Anahtar Kelimeler: Perca luth, Argyrosomus regius, Terminoloji ∗ Correspondence to: Paolo PARENTI, Dipartimento di Scienze dell’Ambiente e del Territorio e di Scienze della Terra, Università di Milano-Bicocca, Piazza della Scienza 1, 20126 Milano, ITALY. Tel: 0039 (0)2 6448 2752 E-mail: [email protected] 79 Journal of FisheriesSciences.com Parenti, 7(1): 79-82 (2013) Journal abbreviation: J FisheriesSciences.com Anus and lateral line as in the congeners. Habitat In his compilation of genera and species of in Red Sea. fishes Walbaum (1792) listed 75 specific names under the genus Perca, including a number of By comparing the description given by Wal- nomina oblita (20) whose status remained un- baum with that provided by Hasselquist it can be certain for two centuries. Quite recently, Parenti noticed that some traits were omitted, probably (2003) reviewed the status of this assemblage of regarded of lesser importance by Walbaum. fish names and was able to place all of them into Among these there are: i) the convex shape of the synonymy of well-established fish names. The head below the eye (lateribus sub oculis con- name Perca luth, which was also included by vexum, pone perpendiculare); ii) a large mouth Walbaum in his account (1792:334), was over- (rictus oris magnus); iii) the shape of the tongue looked because regarded as not original and thus (magna, cartilaginea, apice obtusa, depressa, it was not treated by Parenti (2003). However, a basi convexiuscula, subtus ad basin palato liga- recent re-examination of the Walbaum’s compi- mento adnexa, antice libera); iv) the description lation led this name to be restored as available of the nostrils (nares proxime ante oculos name (Eschmeyer, 2012). utrinque binae, admodum remotae; posteriores transversaliter elliptcae, ampliusculae, anteri- The name Perca (Luth) appeared as such for ores angustiores orbiculatae); v) the shape of the first time in Hasselquist (1762: 402) preced- the dorsal profile (dorsum parum a capite assur- ing the description of a percoid fish encountered gens; ante pinna dorsi convexum; ab illo ad cau- by the author in his travel to Palestine. This name dam sensim declive, acuminatum), the flank is treated as not available from this author be- (latera convexa supra linea lateralis attenuata) cause published in a rejected work (ICZN Opin- and the belly (abdomen convexum); vi) the shape ion 57) and also regarded as vernacular, non-sci- of the branchiostegal rays (I maximum arcuatum, entific name. However, the name is available exterius gibbus, reliqua ordine minora. Bran- from Walbaum (1792:334). chiae ut in reliquis); vii) the position of pectorals Walbaum listed Perca luth as eighteenth spe- (prope abdomen acuminate); and viii) the size cies of the genus Perca and he amassed the spe- (magnitudo Scienae primae). cies together with others belonging to highly di- In one aspect Walbaum was wrong: the type verse percoid families. As for other species, the locality. Hasselquist reported that the fish came name is followed by a brief diagnosis and by a from Damietta (Habitat cum prima & reliquis second paragraph which include a somewhat de- promiscue circa litora Damiatae), whereas Wal- tailed description. The diagnosis of P. luth is the baum indicated the Red Sea (habitat in mari ru- same as provided by Hasselquist (dentibus longi- bro). Damietta , also known as Damiata usculis, distichis, acuminatis,inferioribus dupli- or Domyat, is a port and the capital of catis), whilst the description is compiled in a the Damietta Governorate in Egypt. It is located more schematic way according to the Walbaum’s at the intersection between the Mediterranean style. A translation of the description is here pro- Sea and the Nile, about 200 kilometers north vided. of Cairo. Perhaps Walbaum was misled by read- Perca, Luth. Br. 7. D. 3/20, 1/30. P. 17. V. 6. ing that Arabian knew the fish as luth, as reported A… C. 20. Body compressed, elongate. Head of by Hasselquist (Arabis Luth) and believed the similar shape. Snout a little pointed. Upper jaw specimen inhabiting the Red Sea. The author is longer and larger than lower jaw. Tongue, inte- unable to find a different explanation for chang- rior of the mouth and palate smooth and yellow. ing the type locality of P. luth. Teeth in upper jaw considerably long, conical, Although Walbaum omitted a number of fea- bowed, separated, posterior shorter; in lower jaw tures reported in the original description by Has- similar, however twice shorter and doubled near selquist, there is no doubt that P. luth represents a the apex. Head and operculum scaled; upper senior synonym of the meagre Argyrosomus re- opercular margin serrate and with a spine, lower gius (Asso, 1801). Several features, including one as in other species of the genus. Dorsal fin in meristics, general shape of the body and caudal two parts, anterior with 10 spines. First very fin, and in particular the color of the internal of short, eighth and ninth with strong spines, 2, 3, 4, the mouth allow positive identification of the 5, 6, 7 more flexible; 30 posterior rays, the first species. spinuous, the remnant soft. Caudal fin rounded. 80 Journal of FisheriesSciences.com Parenti, 7(1): 79-82 (2013) Journal abbreviation: J FisheriesSciences.com The consequence of the discovery that an dae, p.813-826. In J.C. Quero et al. (eds.) older name predates a long-established one ne- Check-list of the fishes the eastern tropical cessitates nomenclatural actions. The Interna- Atlantic (CLOFETA), UNESCO, Paris, vol tional Code of Zoological Nomenclature (1999) 2; Coull, K.A., A.S. Jermyn, A.W. Newton, states that the Principle of Priority is to be used to G.I. Henderson and W.B. Hall, 1989, promote stability and not to upset long-accepted Length/weight relationships for 88 species of names. Therefore, in accordance with that Princi- ple, the application of reversal of precedence of fish encountered in the North Atlantic, Scot- two names and the continuation of prevailing us- tish Fisheries Research Report 43: 1-80; age of a younger synonym is allowed when two Costa, F., 199, Atlante dei pesci dei mari conditions are met (see Article 23.9). These con- italiani, Gruppo Ugo Mursia Editore S.p.A. ditions are: (1) a name has not been used as valid Milano, Italy, 438 p.; Dor, M.1984, Checklist since 1899 (Article 23.9.1.1) and (2) the valid of the fishes of the Red Sea, Israel Academy name has been used as such in at least 25 works, of Sciences and Humanities, Jerusalem, 437 published by at least 10 authors during the past p.; Economidis, P.S., 1973, Catalogue of the 50 years, and encompassing a span not less than fishes of Greece, reprinted from Hellenic ten years (Article 23.9.1.2). Condition (1) and Oceanology and Limnology, Praktika of the condition (2) exist for Perca luth and for Argyro- Institute of Oceanography and Fishing Re- somus regius, respectively, to allow “reversal of precedence” of the two names. Argyrosomus re- search, vol. 11 (1972); Griffiths, M.H. and gius (Asso, 1801), is thus regarded as valid, P.C. Heemstra, 1995, A contribution to the qualifying as a nomen protectum, while Perca taxonomy of the marine fish ge- luth Walbaum, 1792, is recognized as invalid, nus Argyrosomus (Perciformes: Sciaenidae), qualifying as nomen oblitum. As evidence that with descriptions of two new species from conditions of Article 23.9.1.2 have been met see southern Africa, Ichthyological Bulletin, Appendix 1: J.L.B. Smith Insttute of Ichthyology 65, 1-40; Appendix 1. Lindsey, C.C., 1978. Form, function and lo- comotory habits in fish. p. 1-100. In W. S. Published works that cite Argyrosomus Hoar and D. J. Randall (eds.) Fish Physiol- regius as valid, thus fulfilling the require- ogy VII. Academic Press, New York; Lyth- ments of Article 23.9.1.2 of the International goe J, and G. Lythgoe, 1992, Fishes of the Code of Zoological Nomenclature (ICZN, sea. The North Atlantic and Mediterranean. 1999), are as follows: Arruda L.M. 1997, The MIT Press, Cambridge, Massachusetts, Checklist of the marine fishes of the Azores, 256 pp.; Muus, B.J. and J.G. Nielsen, 1999. Arquivos do Museu Bocage (Nova série) Sea fish. Scandinavian Fishing Year Book, 3(2): 13-164; Bainbridge, R., 1958, The Hedehusene, Denmark.