Acanthopagrus datnia (Hamilton, 1822), a senior synonym of Acanthopagrus longispinnis (Valenciennes, 1830) (Perciformes: Sparidae)

Zootaxa ◽  
2020 ◽  
Vol 4750 (2) ◽  
pp. 151-181
Author(s):  
MOHAMMAD EUSUF HASAN ◽  
JEAN-DOMINIQUE DURAND ◽  
YUKIO IWATSUKI
Keyword(s):  
Taxonomic Status ◽  
Original Description ◽  
Type Specimen ◽  
Critical Examination ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Senior Synonym ◽  
Recent Collection ◽  
Morphological Differences ◽  
Fin Spines

The taxonomic status of the Bay of Bengal nominal sparid species Coius datnia Hamilton, 1822 and Acanthopagrus longispinnis (Valenciennes, 1830) are reviewed and investigated both morphologically and genetically. Because of inadequate description and no type specimen, Coius datnia has recently been considered to belong to Sparidentex, a genus without molarifom teeth. Critical examination of the original description and examination of specimens from the type locality and adjacent areas reveal that Coius datnia belongs to Acanthopagrus, a genus with an inner series of molars. Furthermore, examination of specimens previously recognized as Acanthopagrus longispinnis (Valenciennes 1830), and recent collection of fresh specimens from lower Ganges estuary in Bangladesh, show that morphological differences between Acanthopagrus datnia and A. longispinnis are minor, and they are genetically identical. The longer second anal-fin spine in A. longispinnis (>21% SL) is, in fact, a feature of some younger A. datnia. Accordingly, A. datnia is regarded as a senior synonym of A. longispinnis, and is distinguished from its congeners by the presence of 12 dorsal-fin spines (rarely 11 or 13), 3½ scale rows between the fifth dorsal-fin spine base and lateral line, pelvic and anal-fins pale yellow to yellow with black streaks present in the interradial membranes of anal-fin rays, and caudal fin grey or yellowish grey. A neotype (and neogenotype) has been designated for Acanthopagrus datnia (Hamilton, 1822). 

scholarly journals Rediscovery and redescription of the endangered Hypostomus subcarinatus Castelnau, 1855 (Siluriformes: Loricariidae) from the rio São Francisco basin in Brazil, with comments on the urban water conservation

2018 ◽  
Author(s):  
Cláudio Henrique Zawadzki ◽  
Iago de Souza Penido ◽  
Tiago Casarim Pessali
Keyword(s):  
Water Conservation ◽  
Original Description ◽  
Southeastern Brazil ◽  
Urban Water ◽  
Urban Lake ◽  
Unexpected Event ◽  
The Third ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Belo Horizonte

AbstractHypostomus subcarinatus Castelnau, 1855 is rediscovered in the Pampulha lake, an urban lake pertaining to the rio das Velhas basin in the rio São Francisco system in the state of Minas Gerais, southeastern Brazil. Herein, H. subcarinatus is redescribed and its diagnosis from the congeners is established due to characters such as blue tan dorsal fin in live specimens, slender bicuspid teeth, dentaries angled more than 90 degrees, moderate keels along lateral series of plates, small roundish dark spots, one plate bordering supraoccipital, by having nuptial odontodes mainly on pectoral, dorsal and caudal-fin rays, and longer anal-fin unbranched ray. The rediscovery of H. subcarinatus after more than 160 years after its original description was one unexpected event, because the Pampulha lake is an artificial, shallow and polluted urban lake. The lake is located in the downtown of municipality of Belo Horizonte, the third largest urban agglomeration in Brazil with a population exceeding 5.9 million inhabitants. In the light of this finding we address the importance of urban body waters to maintenance of fish biodiversity in the neotropics.

Rediscovery of the Liberian Nimba toad, Nimbaphrynoides liberiensis (Xavier, 1978) (Amphibia: Anura: Bufonidae), and reassessment of its taxonomic status

Zootaxa ◽  
2010 ◽  
Vol 2355 (1) ◽  
pp. 56 ◽  
Author(s):  
LAURA SANDBERGER ◽  
ANNIKA HILLERS ◽  
JOSEPH DOUMBIA ◽  
NÉMA-SOUA LOUA ◽  
CHRISTIAN BREDE ◽  
...  
Keyword(s):  
Taxonomic Status ◽  
Original Description ◽  
Critically Endangered ◽  
Type Locality ◽  
Patchy Distribution ◽  
Open Cast Mining ◽  
Morphological Differences ◽  
Two Populations ◽  
Open Cast ◽  
Genetic Comparison

We report on the search and rediscovery of the Liberian Nimba toad, Nimbaphrynoides liberiensis, 30 years after its original description. A small surviving population could be traced in the surroundings of the type locality Mount Alpha, Liberia. The type locality was meanwhile destroyed by open cast mining. Similar to the Guinean Nimba toad, Nimbaphrynoides occidentalis, the Liberian toad lives exclusively in open, savanna like habitats above 1200 m a.s.l. The presumably few surviving individuals and the small and patchy distribution classify the Liberian toads as Critically Endangered (Stuart et al. 2008). A morphological, acoustical and genetic comparison of Liberian and Guinean populations revealed only minor, but distinct morphological (size, colour) differences. Genetically and acoustically the two taxa were indistinguishable. We therefore propose to consider the two populations as conspecific and to consider Nimbaphrynoides liberiensis (Xavier, 1978) as junior synonym of Nimbaphrynoides occidentalis (Angel, 1943). Because of the morphological differences we propose to treat the Liberian population as a subspecies of the Guinean toad and herein introduce the new name: Nimbaphrynoides occidentalis liberiensis.

The identity of Osteobrama cotio, and the status of “Osteobrama serrata” (Teleostei: Cyprinidae: Cyprininae)

Zootaxa ◽  
2018 ◽  
Vol 4504 (1) ◽  
pp. 105 ◽  
Author(s):  
MD. MIZANUR RAHMAN ◽  
MICHAEL NORÉN ◽  
ABDUR ROB MOLLAH ◽  
SVEN KULLANDER
Keyword(s):  
Dna Sequences ◽  
Original Description ◽  
Zoological Nomenclature ◽  
Widespread Species ◽  
Dorsal Fin ◽  
Godavari River ◽  
Narmada River ◽  
Fin Ray ◽  
The Status ◽  
Morphological Differences

Osteobrama cotio is considered to be a widespread species in India and Bangladesh. Mitochondrial DNA (COI, 16S rRNA) shows that populations from the Meghna River, Karnafuli and Sangu Rivers, Narmada River, and Godavari River are genetically distinct from each other. No morphological differences were found to separate Meghna and Karnafuli+Sangu populations, however. A putative new species, “Osteobrama serrata” has been described from the Barak River basin, stated to be distinguished from O. cotio by the presence of a serrated third dorsal-fin ray. The description of “O. serrata” does not fulfil requirements of the International Code of Zoological Nomenclature, (International Commission on Zoological Nomenclature 1999) and the name is thus unavailable. Published DNA sequences of “Osteobrama serrata” are identical to sequences of O. cotio from Bangladesh. As mentioned already in the original description, O. cotio has a serrated third dorsal-fin ray. 

Maluti Mystery: A systematic review of Amietia vertebralis (Hewitt, 1927) and Strongylopus hymenopus (Boulenger, 1920) (Anura: Pyxicephalidae)

Zootaxa ◽  
2008 ◽  
Vol 1962 (1) ◽  
pp. 33-48 ◽  
Author(s):  
JEANNE TARRANT ◽  
MICHAEL J. CUNNINGHAM ◽  
LOUIS H. DU PREEZ
Keyword(s):  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Taxonomic Status ◽  
Original Description ◽  
Type Specimen ◽  
Systematic Position ◽  
Type Specimens ◽  
Morphological Examination ◽  
Species Type ◽  
Original Application

The taxonomic status of Amietia vertebralis and Strongylopus hymenopus, two frogs restricted to the Maluti-Drakensberg highlands in southern Africa, is unclear. Here, morphological examination and phylogenetic analyses elucidate the systematic position of these two species. Type specimens of both species were examined and compared with more recent collections to clarify their identity. These comparisons revealed discrepancies between the original application of these names and their current usage. The holotype and original description of A. vertebralis match specimens from an extant population at that species’ type locality that are currently assigned to S. hymenopus. Furthermore, the type specimen of S. hymenopus is of uncertain provenance and does not match well with either of the forms currently associated with these names. We assessed both intraspecific and interspecific variability using DNA sequence data. Broad sampling of the form currently assigned to A. vertebralis revealed very little genetic variation thereby dispelling the hypothesis that this is a compound taxon. The generic placement of both species within the family Pyxicephalidae was resolved using a combined dataset of mitochondrial 16S rDNA and nuclear RAG1 gene sequences. The form currently recognised as S. hymenopus was excluded from the otherwise monophyletic genus Strongylopus, and was placed instead within Amietia. Based on these data a revised application of both species names is recommended here. Populations currently assigned to Amietia vertebralis are referred to Amietia umbraculata and those attributed to Strongylopus hymenopus are referred instead to Amietia vertebralis.

A new species of the waspfish genus Ocosia (Teleostei: Tetrarogidae) from the Coral Sea, with a key to species in the genus

Zootaxa ◽  
2022 ◽  
Vol 5091 (3) ◽  
pp. 37-50
Author(s):  
SIRIKANYA CHUNGTHANAWONG ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Caledonia ◽  
Key To Species ◽  
Gill Rakers ◽  
The Third ◽  
Dorsal Fin ◽  
Coral Sea ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Fin Spines

The new waspfish Ocosia dorsomaculata n. sp. (Tetrarogidae) is described, based on specimens from Australia (5) and New Caledonia (51). Although O. dorsomaculata and Ocosia apia Poss & Eschmeyer 1975 both share modally XVI, 8 dorsal-fin rays with a long second dorsal-fin spine, and presence of supraocular, lateral lacrimal, and suborbital spines, the former has modally 13 pectoral-fin rays (vs. usually 12 in the latter), a lower modal count of total gill rakers (10 vs. 16–18), greater upper-jaw length, greater third to sixth dorsal-fin spine lengths, the third dorsal-fin spine slightly shorter than the second dorsal-fin spine (vs. third spine markedly shorter than second spine), 1 or 2 prominent pale brown to dark brown blotches on the membrane between the fifth to eighth or sixth to ninth dorsal-fin spines (vs. 1 blotch on the membrane around the third dorsal-fin spine and 1 blotch on the membrane between the sixth to eighth dorsal-fin spines), and body with 11–15 longitudinal pale brown to dark brown bars along lateral line (vs. irregular brown specks). A key to the species of Ocosia is given.  

Two new dwarfgobies from the Southwestern Pacific Ocean (Teleostei: Gobiidae: Eviota)

Zootaxa ◽  
2012 ◽  
Vol 3572 (1) ◽  
pp. 33 ◽  
Author(s):  
DAVID W. GREENFIELD ◽  
RICHARD WINTERBOTTOM
Keyword(s):  
Papua New Guinea ◽  
Pupil Diameter ◽  
The Body ◽  
Sensory Canal ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Pectoral Fin Rays ◽  
Fin Spines ◽  
Pelvic Fin

Two species of Eviota with red or orange bars crossing the body, a bifurcated 4th pelvic-fin ray with two long branches,and lacking many or all cephalic sensory-canal pores are described from Palau, Indonesia, and Papua New Guinea. Eviotajewettae has a dorsal/anal fin-ray formula of 8/8, 98% of the specimens lack all cephalic sensory-canal pores, 2–4 lowerpectoral-fin rays branched; non-filamentous dorsal-fin spines; short tubular anterior nares that are not black and are lessthan ½ pupil diameter in length, and five wide bars across the body. Eviota pinocchioi has a dorsal/anal fin-ray formulaof 9/8, always lacks the POP and IT pores and the PITO and AITO pores are fused in about 50% of the specimens, un-branched pectoral-fin rays, males with filamentous dorsal-fin spines, tubular anterior nares black and very long, almost equal to the pupil diameter, and six narrow bars across body.

Validity and redescription of the flathead fish, Onigocia macrocephala (Weber, 1913) (Teleostei: Platycephalidae)

Zootaxa ◽  
2012 ◽  
Vol 3450 (1) ◽  
pp. 23 ◽  
Author(s):  
HISASHI IMAMURA
Keyword(s):  
Posterior Margin ◽  
Taxonomic Status ◽  
Original Description ◽  
Distinct Species ◽  
Valid Species ◽  
Pectoral Fin ◽  
Gill Rakers ◽  
Caudal Fin ◽  
Fin Rays ◽  
Pectoral Fin Rays

After the original description, Platycephalus macrocephalus Weber, 1913 has been rarely treated as a valid species and its taxonomic status has been unclear. It was revealed here that seven syntypes of the species belong to two species and four of them are identical with Onigocia grandisquama (Regan, 1908) but the remaining three specimens are identified as a distinct species of Onigocia Jordan & Thompson, 1913, which has been mistakenly identified as Onigocia macrolepis (Bleeker, 1854) by several authors. One of the three specimens illustrated in the original description is designated as the lectotype of the species. Onigocia macrocephala is separable from its other congeners in having 21–23 (mode 22) pectoral fin rays, 9–10 caudal fin rays, 1 + 4–6 = 5–7 (mode 6) gill rakers, a larger head (38.8–42.3% SL), a single ocular flap present and usually extending slightly beyond the posterior margin of the orbit, a few or several small and short papillae on the posteromedial portion of the eye in larger specimens, the upper iris lappet short and branched, the lachrymal with two distinct antrorse spines anteriorly, a notch on the suborbital ridge below the eye, and no interopercular flap.

Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 2—Description of two new species of Centrophorus and clarification of the status of Centrophorus lusitanicus Barbosa du Bocage & de Brito Capello, 1864

Zootaxa ◽  
2017 ◽  
Vol 4344 (1) ◽  
pp. 86 ◽  
Author(s):  
WILLIAM T. WHITE ◽  
DAVID A. EBERT ◽  
GAVIN J.P. NAYLOR
Keyword(s):  
Relative Length ◽  
Original Description ◽  
Species Level ◽  
Critical Examination ◽  
Undescribed Species ◽  
Morphometric Data ◽  
History Museum ◽  
Dorsal Fin ◽  
Two New Species ◽  
The Status

Centrophorus specimens with a distinctive long-based first dorsal fin (long-finned species) have previously been considered to be Centrophorus lusitanicus first described from Portugal. Critical examination of the original description and illustration reveal that C. lusitanicus should be considered a junior synonym of C. granulosus. However, the specimen considered to be the syntype of C. lusitanicus in the Natural History Museum in London is clearly a long-finned species and not conspecific with C. granulosus. A more detailed investigation revealed that this specimen should not be considered a syntype and was likely not originally collected off the coast of Portugal. Investigation of long-finned specimens of Centrophorus from the Indo-West Pacific and Eastern Atlantic revealed that two undescribed species exist and are herein formally described as C. lesliei and C. longipinnis. The two species are similar morphologically and belong to the long-snout Centrophorus group (e.g. C. isodon and C. harrissoni) but are clearly separable based on their very long first dorsal fins. The two species differ in relative length of the first dorsal fin and several other characters. They also differ genetically. Nonmetric multidimensional ordination based on morphometric data reveals both species level and ontogenetic differences. A short erratum is also provided for Part 1 of this revision of the Centrophorus due to two figure related errors which may cause some confusion. 

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