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A total of 1217 fish species were analysed and the percentage of species in each of a number of zoogeographic patterns was calculated. An additional two categories, Atlanto-Mediterranean (anti-Less...

The filamentous flounder Arnoglossus nigrofilamentosus n. sp. is described from four specimens collected in the southeastern Mediterranean near Tel-Aviv, Israel on 5 May 2017. The new species is characterized as follows: second to sixth dorsal-fin rays elongate and filamentous, dorsal-fin rays 78-84, anal-fin rays 61-66, pectoral-fin rays on ocular side 12-13, on blind side 7-9, caudal-fin rays iii,11,iii , lateral-line scales 52-54, gill rakers 0 + 4-5, not serrated, interorbital a narrow bony ridge without scales in the middle, interorbital width 11% to 16% of upper orbit diameter, no enlarged teeth anteriorly in upper jaw, and prevomer small, not enlarged, weakly projecting into mouth cavity; body in fresh specimens pale (may have been dark before the epidermis was abrased), head, peritoneum and vertical fins black. The new species is described and compared with similar species. Though the species has not yet been observed in the northern Red Sea, it probably originates from the Gulf of Suez, so this finding represents a probable new case of Lessepsian migration. Se describe una nueva especie de platija filamentosa Arnoglossus nigrofilamentosus n. sp. A partir de 4 ejemplares capturados en el SE Mediterráneo cerca de Tel-Aviv, Israel, el 5 de mayo del 2017. La nueva especie se caracteriza por los radios dorsales 2 a 6, largos y filamentosos, 78-84 radios dorsales, 61-66 radios anales, 12-13 radios pectorales en el lado ocular y 7-9 en el lado ciego, iii+11+iii radios caudales, linea lateral con 52-54 escamas, 0+4-5 arcos branquiales, no serrados, una estrecha cresta interorbital, sin escamas en medio, anchura interorbitaria 11-16% el diámetro superior de la órbita, mandibular superior sin dientes alargados anteriormente, y prevomer pequeño, no alargado, débilmente proyectado en la cavidad bucal. En ejemplares frescos, el cuerpo es pálido (quizás oscuro antes de la abrasion de la piel durante la pesca), cabeza, peritoneo y aletas verticales negras. Se describe la nueva especie y se compara con especies próximas. Aunque la especie no se ha observado todavía en el Mar Rojo, probablemente es originaria del Golfo de Suez, lo que supondría un nuevo caso de migración lessepsiana.

The Golden anchovy Stolephorus insularis was recorded for the first time in the Mediterranean near Tel-Aviv, Israel on 7 August 2009. This northern Indian Ocean species evidently reached the Mediterranean by crossing the Suez Canal from the Red Sea. Since then, several specimens were collected over a period of time which indicates that this species has established a viable population in the Levant.

The Indo-Pacific fish Terapon jarbua is recorded for the first time in the Mediterranean. This record is evidentially the result of T. jarbua entering the Mediterranean via the Suez Canal (Lessepsian migration). The present record increases the total number of known Lessepsian fish to 74. A comparison of Mediterranean and Red Sea specimens of T. jarbua with specimens from the Far East suggests the necessity for genetic studies in order to clarify the unity of this taxon. El pez indo-pacífico Terapon jarbua se ha recolectado por primera vez en el Mediterráneo. Este registro es evidentemente el resultado de la entrada de T. jarbua en el Mediterráneo vía el Canal de Suez (migración Lessepsiana). El presenta registro incrementa el número total de peces Lessepsianos a 74. La comparación de especímenes de T. jarbua mediterráneos y del mar Rojo de los de zona lejanas del Este sugiere la necesidad de estudios genéticos para poder clarificar la unidad de este taxon.

A single specimen of a sub-adult specimen of the Atlantic species, Acanthurus coeruleus Bloch et Schneider, 1801, was collected in the Mediterranean coast of Israel. This collection was the first confirmed record of this species in the Mediterranean since hitherto it was known from this region only by a single underwater photograph from Cyprus. We postulate that this species may be considered as having established a population in this region.

The slender ponyfish Equulites elongatus was recorded for the first time in the Mediterranean near Tel-Aviv, Israel on 27 May 2011. This Indo-Pacific species evidently reached the Mediterranean by crossing the Suez Canal.