In 1995, Ross & Newman proposed Galkinia as a replacement name for Utinomia Galkin, 1986 (Cirripedia: Pyrgomatidae), which was pre-occupied. However, this author discovered Galkinia was itself pre-occupied by a genus of fossil fish, Galkinia Ghekker, 1948 (Actinopterygii: Pholidophoriformes). Galkinius is herein proposed as a replacement name for Galkinia Ross & Newman, 1995, to preserve the re...

Abstract Bomolochus bellones Burmeister, 1835 is redescribed based on specimens recovered from the bucco-branchial cavity of Pacific saury, Cololabis saira (Actinopterygii, Beloniformes, Scomberesocidae), in Japan. The male, copepodid V female, IV and III male species are described. postantennal processes lateral have appeared female at V.

Family Catostomidae is a diverse group of benthic freshwater fishes that are distributed across North America and in parts of East Asia. In this study, the phylogenetic relationships of Catostomidae is examined using 3436 nucleotides of mitochondrial ND4 and ND5 protein coding genes and intervening tRNAs. All 13 genera and 60 species of catostomids were sampled to represent diversity of the fam...

MICHAEL P. HAMMER, MARK ADAMS & RALPH FOSTER 1 Natural Sciences, Museum and Art Gallery of the Northern Territory, PO Box 4646 Darwin NT 0810, Australia. E-mail: [email protected] Evolutionary Biology Unit, South Australian Museum, Adelaide SA 5000, Australia. E-mail: [email protected] Ichthyology Section, South Australian Museum, Adelaide SA 5000, Australia. E-mail: ralph.fo...

The complete mitochondrial genome of the stone loach Barbatula barbatula (Linnaeus, 1758) (Actinopterygii: Cypriniformes: Nemacheilidae) has been sequenced using a genome-skimming approach on an Illumina Hiseq 2500 platform. The mitochondrial genome of B. barbatula was determined to be 16,630 bp long and presents an organization typical of vertebrate mitogenomes. The mean coverage was 82× with ...

Mechanisms of accumulation based on typical centromeric drive or of chromosomes carrying pericentric inversions are adjusted to the general karyotype differentiation in the principal Actinopterygii orders. Here, we show that meiotic drive in fish is also supported by preferential establishment of sex chromosome systems and B chromosomes in orders with predominantly bi-brachial chromosomes. The ...

The Moscovian of eastern North Greenland has yielded an assemblage dominated by teeth and dermal denticles of chondrichthyans with rarer teeth of actinopterygians. The rather poor preservation of the material precludes precise identification but the following taxa have been recorded: Adamantina foliacea, Bransonella spp., Denaea sp., “Stemmatias” simplex, Lagarodus specularis, Actinopterygii in...

Data partitioning, the combined phylogenetic analysis of homogeneous blocks of data, is a common strategy used to accommodate heterogeneities in complex multilocus data sets. Variation in evolutionary rates and substitution patterns among sites are typically addressed by partitioning data by gene, codon position, or both. Excessive partitioning of the data, however, could lead to overparameteri...

well exposed famennian, mainly carbonate rocks of the bahram formation in the vicinity of bagher abad village, central iran,yielded chondrichthyan teeth some sarcopterygii and actinopterygii teeth and fragments. three different genera were recognizedamong the chondrichthyan teeth represented by: phoebodus turnerae, ph. spp., deihim mansureae (m2, m3), stethacanthus sp..acanthodian and sarcopter...

Phylogenomic analysis of large sets of molecular characters, primarily DNA and proteins, provides great opportunities to estimate and understand important evolutionary processes. However, molecular phylogenies inferred from individual loci often differ. This incongruence among phylogenies can be the result of systematic error, but can also be the result of different evolutionary histories. We p...