Fin‐spines attachment, a novel external attachment method for the ultrasonic transmitters on hard fin‐spines fish (Sparidae)

Author(s):  
Shaoliang Lyu ◽  
Kun Lin ◽  
Jiawei Zeng ◽  
Yuxi Liu ◽  
Zhijie Chen ◽  
...  
2004 ◽  
Vol 13 (1) ◽  
pp. 117-119
Author(s):  
A.M. Prokofiev

Capros longispinatus kelasuriensis subsp. n. is described from the Upper Subhorizon of Morozkina Balka (basal part of the Upper Oligocene) of Abkhazia. It precedes stratigraphically the nominotypical subspecies and differs from the latter chiefly in the much shorter dorsal-fin spines.


2016 ◽  
Vol 92 (4) ◽  
pp. 385-398 ◽  
Author(s):  
Maite Pons ◽  
Freddy Arocha ◽  
Andrés Domingo ◽  
David J Die ◽  
Alejandro Brazeiro ◽  
...  

2020 ◽  
Vol 57 (1) ◽  
pp. sjg2020-009
Author(s):  
Michael J. Newman ◽  
Jan L. den Blaauwen ◽  
Carole J. Burrow

Articulated cheiracanthid acanthodians are relatively rare above the Dickosteus thrieplandi biostratigraphic zone in the Orcadian Basin, with Cheiracanthus peachi den Blaauwen, Newman & Burrow the only species identified to date. Here we describe two other taxa Fallodentus davidsoni nov. gen. et sp. and Markacanthus costulatus Valiukevičius from the Mey Flagstone Formation. F. davidsoni occurs at the base of the formation, in the Osteolepis panderi biostratigraphic zone, and is readily identified by its robust fin spines which have a wide longitudinal ridge on each side below the groove separating the leading edge from the side of the spine. The taxon is most similar to Homalacanthus concinnus (Whiteaves) from the younger (Frasnian) Escuminac Formation in Quebec, Canada. The unique specimen of Markacanthus costulatus is from the top of the Mey Flagstone Formation. This taxon was previously only known from isolated scales from the upper Narva and Aruküla Regional Stages of the east Baltic region. The dorsoventral preservation of the head region in the F. davidsoni specimens reveals clearly the position of the ceratohyal cartilages in a cheiracanthid, as well as showing for the first time that there is a basihyal cartilage anterior to the ceratohyals.


Zootaxa ◽  
2002 ◽  
Vol 26 (1) ◽  
pp. 1 ◽  
Author(s):  
LILIAN CASATTI

Pachypops is a South American freshwater sciaenid genus characterized by having two anal-fin spines, three mental barbels, an inferior mouth, a swimbladder with a pair of short appendages anteriorly and a pair of longer appendages projected posteriorly, and the haemal spine of the first caudal distinctly expanded. Three valid Pachypops species are recognized herein. Of the six nominal species previously assigned to Pachypops, two are herein recognized as valid (Perca fourcroi and Micropogon trifilis), two are assigned to other sciaenid genera (Pachypops adspersus and Pachypops cevegei) and two are considered junior synonyms (Corvina biloba and Pachypops camposi). A seventh nominal species, Pachyurus nattereri, formerly considered a valid species of Pachyurus, is determined to be a junior synonym of Pachypops fourcroi, and lectotype and paralectotypes are designated for it. Pachypops fourcroi occurs in the Orinoco, Amazonas, Essequibo, Corantijn, and Approuague River basins, and Pachypops trifilis in rivers of Guyana and middle and lower reaches of the Rio Amazonas basin. A third valid species, Pachypops pigmaeus n. sp., is herein described from tributaries of the Rio Amazonas, Brazil.


Check List ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 545-548
Author(s):  
Hyuck Joon Kwun ◽  
Heakyoung Jung

Naso vlamingii (Valenciennes, 1835) is reported from Korea for the first time and a morphological description is provided. A single specimen of N. vlamingii was collected from the southeastern coast of Jeju Island, Korea in September 2017. This species is characterized by the presence of 2 bony plates on the middle of the caudal peduncle, 6 dorsal and 2 anal fin spines, and a rounded, convex, swollen snout. This species is the fifth species of the genus Naso Lacepède, 1801 in the Korean fish fauna, and the newly proposed Korean name for the species is “Keun-ko-pyo-mun-jwi-chi”.


Zootaxa ◽  
2009 ◽  
Vol 2277 (1) ◽  
pp. 61-68 ◽  
Author(s):  
PHILIPPE BÉAREZ ◽  
HIROYUKI MOTOMURA

A new spiny scorpionfish, Trachyscorpia verai, is described from a single specimen caught by deepwater longline off Puerto López (Ecuador, Tropical Eastern Pacific). This scorpionfish is distinguished from all other species of Trachyscorpia by a unique combination of characters: dorsal-fin spines 12, vertebrae 26, and gas bladder absent. Other diagnostic characters are: maxilla unscaled, third dorsal spine long, and pelvic spine short. This is the second species of Trachyscorpia known from the TEP and the sixth worldwide.


Zootaxa ◽  
2012 ◽  
Vol 3348 (1) ◽  
pp. 63 ◽  
Author(s):  
RALF BRITZ ◽  
ANVAR ALI ◽  
SIBY PHILIP

Dario urops, new species, is described from a small stream of the Barapole tributary of Valapattanam River in southern Karna-taka and from Wayanad District, Kerala. It can be distinguished from its congeners by the presence of a conspicuous blackblotch on the caudal peduncle and a horizontal suborbital stripe, by the anterior dorsal fin lappets in males not being produced beyond fin spines, and by its vertebral count.


1969 ◽  
Vol 17 (1) ◽  
pp. 516-516
Author(s):  
A. D. Hasler ◽  
R. M. Horrall ◽  
A. B. Stasko ◽  
E. S. Gardella

2013 ◽  
Vol 280 (1766) ◽  
pp. 20131200 ◽  
Author(s):  
Matt Friedman ◽  
Zerina Johanson ◽  
Richard C. Harrington ◽  
Thomas J. Near ◽  
Mark R. Graham

The adhesion disc of living remoras (Echeneoidea: Echeneidae) represents one of the most remarkable structural innovations within fishes. Although homology between the spinous dorsal fin of generalized acanthomorph fishes and the remora adhesion disc is widely accepted, the sequence of evolutionary—rather than developmental—transformations leading from one to the other has remained unclear. Here, we show that the early remora † Opisthomyzon (Echeneoidea: †Opisthomyzonidae), from the early Oligocene (Rupelian) of Switzerland, is a stem-group echeneid and provides unique insights into the evolutionary assembly of the unusual body plan characteristic of all living remoras. The adhesion disc of † Opisthomyzon retains ancestral features found in the spiny dorsal fins of remora outgroups, and corroborates developmental interpretations of the homology of individual skeletal components of the disc. † Opisthomyzon indicates that the adhesion disc originated in a postcranial position, and that other specializations (including the origin of pectination, subdivision of median fin spines into paired lamellae, increase in segment count and migration to a supracranial position) took place later in the evolutionary history of remoras. This phylogenetic sequence of transformation finds some parallels in the order of ontogenetic changes to the disc documented for living remoras.


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