Investigations of type material and new from the Philippines (Luzon) revealed that Baetis luzonensis Müller-Liebenau, 1982 B. realonae do not belong to Leach, 1815. A genus, Philibaetis gen. nov. , is described accommodate both species are re-described based on larvae. The genus characterised by having a rectangular labrum with submarginal row long, simple setae dorsal surface ventrally lateral...

The tribe Adelungiini Baker, with Platyproctus agraphopteron Bergevin, 1932, P. melichari (Kusnezov, 1929), and emir sp. nov., collected on Calligonum crinitum Boiss. arabicum Sosk., is recorded for the first time from United Arab Emirates. Symphypyga omani Kameswara Rao et Ramakrishnan, 1983 Assiuta camena Linnavuori, 1969 are transferred to genus Lindberg, 1925 based male genitalia structure,...

Abstract Microichthys grandis n. sp. from off southwest Ireland, northeastern Atlantic Ocean, is described on the basis of a single specimen and compared with other species genus. The new characterized by following combination characters: dorsal-fin rays VII–I, vii, 1; total pectoral-fin 18; gill rakers 25; pyloric caeca 3; pored lateral-line scales 41 + 2; vomerine teeth 6, in row; denticles p...

Abstract The Norian represents the longest stage of Triassic, nevertheless, its precise subdivision is an unresolved matter. Conodonts might be useful in establishment accurate biozonation to avoid common scientific misinterpretations. Understanding evolutionary trends and morphological changes Ancyrogondolella lineage (genus descendant genera Epigondolella, Orchardella Mockina ) key importance...

a massive sequencing approach of a cDNA library, the whole set of Hox genes of the chondrichthyan, Scyliorhinus canicula. We have sequenced seven BAC clones that include all of the HoxA, HoxB and HoxD clusters. The transcriptomic data suggests that no HoxC genes have been maintained in this species. The expression of the posterior Hox genes was studied by insitu hybridization and showed that al...

Remipedia is a stygobitic group commonly associated with coastal anchialine caves. This class consists of 12 genera, ten which are found within the Lucayan Archipelago. Herein, we describe new species genus Godzillius from Conch Sound Blue Hole, North Andros Island, Bahamas. louriei sp. nov. third known remipede observed subseafloor marine cave, and first Godzilliidae. Remipedes dwell notorious...

Tyrannosaurids were the apex predators of Late Cretaceous Laurasia and their status as dominant carnivores has garnered considerable interest since discovery, both in popular scientific realms. As a result, they are well studied much is known anatomy, diversity, growth, evolution. In contrast, little earliest stages tyrannosaurid development. Tyrannosaurid eggs embryos remain elusive, juvenile ...

According to the most recent taxonomical revision, deep-sea dogfish genus Deania encompasses four species. Three of them, D. calcea, profundorum , and hystricosa occur in North Atlantic. Whilst can be identified by presence a subcaudal keel, other two species are not easily visually distinguished. Uncertainties over identification raises concerns stock units whether management plans adequate. I...