A taxonomic revision of Parachela with descriptions of two new species (Cypriniformes: Xenocyprididae).

The taxonomy of the Parachela-Oxygaster-Macrochirichthys clade of Xenocyprididae has been confused since the original descriptions of Parachela oxygastroides and Parachela hypophthalmus in the mid-19th century. The confusion seems attributable to the substantial intraspecific variation in color and other morphological characteristics of species of Oxygaster and Parachela. Morphological data on 401 specimens from throughout the range of Parachela and molecular phylogenetic analyses indicate that six available species names for Parachela are valid: Parachela cyanea, P.

Taxonomic revision of the Southeast Asian brook barb genus Smith, 1931 (Teleostei, Cyprinidae) with description of a new species from Vietnam.

Molecular data from samples encompassing 22 nominal species of indicate that the species-level diversity in the genus has been vastly overestimated, likely due to inadequate taxon and geographic sampling and reliance on morphological characters that vary intra-specifically. The latter includes discrete mouth morphologies related to alternate feeding strategies (ecomorphs) within populations. One new species is described, Hoàng, Phạm & Trần, , and 17 synonyms of six valid species names of , , , , , , and , are recognised.

Species of Garra (Cyprinidae: Labeoninae) in the Salween River basin with description of an enigmatic new species from the Ataran River drainage of Thailand and Myanmar.

Garra panitvongi, new species, is described from the Ataran River drainage, Salween River basin, of southeastern Myanmar and western Thailand. It is the sixth species of Garra known from the Salween River basin and is readily distinguished from all congeners by the red-orange color of the body and caudal fin, and a pointed proboscis with a blue stripe on each side from the anterior margin of the orbit to the tip of the proboscis and with the stripes forming a V-shape. Garra panitvongi is known in the aquarium trade as the Redtail Garra.

Review of the spotted lizard loaches, Pseudohomaloptera (Cypriniformes: Balitoridae) with a re-description of Pseudohomaloptera sexmaculata and description of a new species from Sumatra.

A review of the six recognized species of Pseudohomaloptera is provided. Counts in the original description of Pseudohomaloptera sexmaculata Fowler (1934) were incorrect and led to confusion in identifying populations of Pseudohomaloptera in mainland Southeast Asia, and the species is re-described. The validity of Homaloptera septemmaculata Fowler (1934) is investigated and confirmed as a junior synonym of P.

They like to move it (move it): walking kinematics of balitorid loaches of Thailand.

Balitorid loaches are a family of fishes that exhibit morphological adaptations to living in fast flowing water, including an enlarged sacral rib that creates a 'hip'-like skeletal connection between the pelvis and the axial skeleton. The presence of this sacral rib, the robustness of which varies across the family, is hypothesized to facilitate terrestrial locomotion seen in the family. Terrestrial locomotion in balitorids is unlike that of any known fish: the locomotion resembles that of terrestrial tetrapods.

The complete mitochondrial genome of the Jaguar Loach ().

Herein, we present the complete mitochondrial genome of the Jaguar Loach, . The sequence was determined from an aquarium specimen using a next-generation sequencing approach. The annotated mitogenome was 16,695 bp in length and contained 13 protein-coding genes (PCGs), 2 ribosomal RNA genes, 22 transfer RNA genes, and 1 non-coding control region.

Skeletal and muscular pelvic morphology of hillstream loaches (Cypriniformes: Balitoridae).

The rheophilic hillstream loaches (Balitoridae) of South and Southeast Asia possess a range of pelvic girdle morphologies, which may be attributed to adaptations for locomotion against rapidly flowing water. Specifically, the connectivity of the pelvic plate (basipterygium) to the vertebral column via a sacral rib, and the relative size and shape of the sacral rib, fall within a spectrum of three discrete morphotypes: long, narrow rib that meets the basipterygium; thicker, slightly curved rib meeting the basipterygium; and robust crested rib interlocking with the basipterygium. Species in this third category with more robust sacral rib connections between the basipterygium and vertebral column are capable of walking out of water with a tetrapod-like lateral-sequence, diagonal-couplet gait.

Use of web-based species occurrence information systems by academics and government professionals.

Web-based information systems designed to increase access to species occurrence data for use in research and natural resource decision-making have become more prevalent over the past few decades. The effectiveness of these systems depends on their usability and extent of use by their intended audiences. We conducted an online survey of academics and government professionals in the United States to compare their species occurrence data needs and their perceptions and use of web-based species occurrence information systems.

Awareness and use of biodiversity collections by fish biologists.

A survey of 280 fish biologists from a diverse pool of disciplines was conducted in order to assess the use made of biodiversity collections and how collections can better collect, curate and share the data they have. From the responses, data for how fish biologists use collections, what data they find the most useful, what factors influence the decisions to use collections, how they access the data and explore why some fish biologists make the decision to not use biodiversity collections is collated and reported. The results of which could be used to formulate sustainability plans for collections administrators and staff who curate fish biodiversity collections, while also highlighting the diversity of data and uses to researchers.

A revised molecular phylogeny reveals polyphyly in Schistura (Teleostei: Cypriniformes: Nemacheilidae).

There is a general consensus that the genus Schistura (Nemacheilidae), currently with 241 species, is not monophyletic. However, weak morphological synapomorphies and a lack of genetic data for most species of Schistura and their presumptive relatives have prevented meaningful diagnoses of species groups within this genus. To aid in deciphering evolutionary relationships, sequence data from two mitochondrial genes (cytochrome b and D-loop) were implemented in phylogenetic analyses for species of Schistura and other nemacheilids for which data from earlier studies and recently collected material were available.

A survey of digitized data from U.S. fish collections in the iDigBio data aggregator.

Recent changes in institutional cyberinfrastructure and collections data storage methods have dramatically improved accessibility of specimen-based data through the use of digital databases and data aggregators. This analysis of digitized fish collections in the U.S.

Preface.

The Asian Society of Ichthyologists (ASI) was established in February 2014 in Penang, Malaysia following organizational meetings in 2012 in Chiang Mai, Thailand and in 2013 in Bandar Seri Begawan, Brunei.

Papers on fishes of Asia, including those presented at international conferences of the Asian Society of Ichthyologists in Taipei, Taiwan in 2016, and in Ho Chi Minh City, Vietnam in 2017 (Cover Copytight page).

(Cover Copytight page).

Revision of the horseface loaches (Cobitidae, ), with descriptions of three new species from Southeast Asia.

Acantopsis (Cobitidae) is revised based on analysis of morphological and molecular data. Four of the six available names, A. dialuzona, A.

Comment on "On , , , , and , and some other names of labeonine fishes (Teleostei: Gonorhynchidae and Cyprinidae)" by Kottelat (2016).

Kottelat (2016) noted that 'Gonorhynchus McClelland, 1838,' the name used for a South Asian cyprinid genus recognized by Yang et al. (2012) and revised by Ciccotto & Page (2016), does not exist or is a junior homonym of Gonorhynchus Cuvier, 1816. He further noted that Tariqilabeo Mirza & Saboohi, 1990 is the valid genus name for the species recognized in Gonorhynchus by Yang et al.

Revised diagnosis of the genus Gonorhynchus McClelland (Teleostei: Cyprinidae: Labeonini) with redescription of G. latius (Hamilton) and revalidation of G. wattanah (Sykes).

A new diagnosis of the genus Gonorhynchus McClelland 1838 from South Asia is proposed. Seven species are contained in the genus: G. latius (Hamilton 1822), G.

Revision of the Amphilius jacksonii complex (Siluriformes: Amphiliidae), with the descriptions of five new species.

The Amphilius jacksonii complex is revised, and five new species are described: A. ruziziensis n. sp.

Aperioptus pictorius Richardson 1848 is a senior synonym of Acanthopsoides molobrion Siebert 1991, and Aperioptus is a senior synonym of Acanthopsoides Fowler 1934 (Cypriniformes: Cobitidae).

Aperioptus pictorius was described by Richardson in 1848 with limited textual information but with an illustration sufficient to confirm the species as one currently recognized as Acanthopsoides molobrion making Aperioptus a senior synonym of Acanthopsoides Fowler 1934 and A. pictorius a senior synonym of Acanthopsoides molobrion Siebert 1991. Species to be recognized in Aperioptus in addition to A.

On the paraphyly of Homaloptera (Teleostei: Balitoridae) and description of a new genus of hillstream loaches from the Western Ghats of India.

Homaloptera van Hasselt 1823 as treated historically exhibits substantial morphological diversity and is paraphyletic based on both morphological and molecular data. The morphological diversity and phylogenetic relationships of Homaloptera, Homalopteroides Fowler 1905, Homalopterula Fowler 1940, and Balitoropsis Smith 1945, are elucidated. Pseudohomaloptera Silas 1953 is removed from the synonymy of Homaloptera.

Consequences of Decreased Light Harvesting Capability on Photosystem II Function in Synechocystis sp. PCC 6803.

Cyanobacteria use large pigment-protein complexes called phycobilisomes to harvest light energy primarily for photosystem II (PSII). We used a series of mutants with partial to complete reduction of phycobilisomes to examine the effects of antenna truncation on photosystem function in Synechocystis sp. PCC 6803.

A revision of the spirit loaches, genus Lepidocephalus (Cypriniformes, Cobitidae).

Lepidocephalus has been assumed to include only two species and confined to peninsular Malaysia and Indonesia. However, based on records and collections reported herein, the genus contains five species and is most common in the Chao Phraya basin of Thailand. Large rivers seem to be the preferred habitat, and difficulty in collecting these rivers may account for the paucity of specimens in collections.

GenSeq: An updated nomenclature and ranking for genetic sequences from type and non-type sources.

An improved and expanded nomenclature for genetic sequences is introduced that corresponds with a ranking of the reliability of the taxonomic identification of the source specimens. This nomenclature is an advancement of the "Genetypes" naming system, which some have been reluctant to adopt because of the use of the "type" suffix in the terminology. In the new nomenclature, genetic sequences are labeled "genseq," followed by a reliability ranking (e.

Probing the consequences of antenna modification in cyanobacteria.

Photosynthetic organisms rely on antenna systems to harvest and deliver energy from light to reaction centers. In fluctuating photic environments, regulation of light harvesting is critical for a photosynthetic organism's survival. Here, we describe the use of a suite of phycobilisome mutants to probe the consequences of antenna truncation in the cyanobacterium Synechocystis sp.

Subgingival root brushing in deep human periodontal pockets.

Objective: The short-term clinical and microbiological effects of patient-applied subgingival root brushing were assessed on untreated deep human periodontal pockets.

Methods: Assessments of plaque, bleeding on probing, probing depth, total cultivable subgingival counts, and cultivable counts and proportions of six putative periodontal pathogens were carried out at baseline and after 14 days on two contralateral > or = 6 mm bleeding interproximal posterior sites in each of 11 adults with untreated chronic periodontitis. One of the sites was randomly assigned to daily patient-applied subgingival root brushing for 14 days, and the other to remain with the patient's pre-existing tooth brushing and flossing regimen.