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

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.

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Moema apurinan sp. n. and Aphyolebias boticarioi sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): two new annual killifishes from the Rio Purus basin, Brazilian Amazon

Zootaxa ◽

10.11646/zootaxa.707.1.1 ◽

2004 ◽

Vol 707 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

WILSON J.E.M. COSTA

Keyword(s):

New Species ◽

Brazilian Amazon ◽

Color Patterns ◽

Pectoral Fin ◽

Gill Rakers ◽

Caudal Fin ◽

Black Stripe ◽

Fin Rays ◽

Northern Brazil ◽

Pectoral Fin Rays

Two new annual fishes are described from the upper Rio Purus drainage, Amazonian basin, northern Brazil. Moema apurinan, new species, is similar to M. staecki, these two species distinguished from other congeners in having contact organs on scales of the flank in males, an acuminate caudal fin, fewer pectoral-fin rays, fewer vertebrae, and a narrower rostral cartilage. Moema apurinan differs from M. staecki in having a longer pectoral fin and a wider basihyal. Moema apurinan is distinguished from all other congeners by possessing fewer caudal-fin rays. Aphyolebias boticarioi, new species, differs from all other congeners by having a deeper body. It is similar to A. rubrocaudatus, A. obliquus, A. claudiae and A. schleseri in having a ventral marginal black stripe on the caudal fin in males. Aphyolebias boticarioi differs from these species by a combination of features including number of anal-fin rays, pectoral-fin rays, vertebrae and gill-rakers, and color patterns.

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A new species of snailfish of the genus Paraliparis (Liparidae) from the western North Pacific, with a redescription of the poorly known species Paraliparis mandibularis

ZooKeys ◽

10.3897/zookeys.968.56057 ◽

2020 ◽

Vol 968 ◽

pp. 143-159

Author(s):

Yoshiaki Kai ◽

Kenta Murasaki ◽

Ryo Misawa ◽

Atsushi Fukui ◽

Eisuke Morikawa ◽

...

Keyword(s):

New Species ◽

North Pacific ◽

Posterior Margin ◽

Lower Lobe ◽

Coi Gene ◽

Pectoral Fin ◽

Caudal Fin ◽

Tosa Bay ◽

Fin Rays ◽

Pectoral Fin Rays

A new snailfish, Paraliparis flammeus, is described on the basis of 18 specimens collected off the Pacific coast of Tohoku District, northern Japan at depths of 422–890 m. The new species is distinguished from 28 species of Paraliparis described from the North Pacific by the following combination of characters: mouth oblique; uppermost pectoral-fin base below horizontal through posterior margin of maxillary; 60–63 vertebrae, 54–58 dorsal-fin rays, 50 or 51 anal-fin rays, six principal caudal-fin rays, and 17–20 pectoral-fin rays. A maximum likelihood tree based on 106 COI gene sequences (492 bp) of Paraliparis recovered a monophyletic group comprising P. flammeus, Paraliparis cephalus, and Paraliparis dipterus. Paraliparis cephalus is similar to P. flammeus in having an oblique mouth, but it has four caudal-fin rays (vs six rays) and the uppermost pectoral-fin base above a horizontal through the maxillary posterior margin. Paraliparis dipterus differs from P. flammeus in having a horizontal mouth, 12–14 pectoral-fin rays, and lacking pyloric caeca (present in P. flammeus). Paraliparis flammeus is most similar to the eastern North Pacific Paraliparis mento in having an oblique mouth and the uppermost pectoral-fin base below a horizontal through the posterior margin of the maxillary. However, P. flammeus differs from P. mento in having six caudal-fin rays (vs five rays) and greater preanal length (29.9–35.3% SL vs 26.7–28.5% SL). A poorly known species, Paraliparis mandibularis, previously known from only two specimens collected from Tosa Bay, southern Japan, is redescribed based on the holotype and seven newly collected specimens. It is also similar to the new species but has 27–30 pectoral-fin rays and a shorter pectoral-fin lower lobe (13.8–15.9% SL in P. mandibularis vs 16.7–23.4% SL in P. flammeus).

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A taxonomic assessment and redescription of Polydactylus multiradiatus (Günther, 1860), with a synopsis of other Australian species in the genus (Perciformes : Polynemidae)

Australian Journal of Zoology ◽

10.1071/zo01060 ◽

2002 ◽

Vol 50 (3) ◽

pp. 267 ◽

Cited By ~ 2

Author(s):

H. Motomura ◽

J. W. Johnson ◽

Y. Iwatsuki

Keyword(s):

Lateral Line ◽

Taxonomic Status ◽

Original Description ◽

Nominal Species ◽

Northern Australia ◽

Pectoral Fin ◽

Gill Rakers ◽

Australian Species ◽

Dorsal Fin ◽

Pectoral Fin Rays

The taxonomic status of three nominal species of Polydactylus, viz. P. multiradiatus (Günther, 1860), P.�specularis (De Vis, 1883) and P. auratus McKay, 1970, is revised. A comparison of the type series of Polydactylus auratus and the original description of Polynemus specularis with the holotype of Polynemus multiradiatus and 63 additional specimens from northern Australia has shown them to be conspecific. Polydactylus multiradiatus is characterised by its: 7 (rarely 6 or 8) pectoral filaments, not extending to posterior tip of pectoral fin; 14–17 (modally 15) pectoral fin rays; 13–15 (modally 14) dorsal fin soft rays; 16–18 (modally 16) anal fin soft rays; 49–56 (modally 52) pored lateral line scales; 7 or 8 (modally 8) scale rows above lateral line and 14 or 15 (14) below; 11–14 (modally 12) gill rakers on upper limb, 15–20 (modally 17) on lower and 27–33 (modally 30) in total; and vomerine teeth present. A synopsis of other Australian Polydactylus species and a key to known Australian Polydactylus are provided.

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Resurrection of the genus Homalopteroides (Teleostei: Balitoridae) with a redescription of H. modestus (Vinciguerra 1890)

Zootaxa ◽

10.11646/zootaxa.3586.1.31 ◽

2012 ◽

Vol 3586 (1) ◽

pp. 329 ◽

Cited By ~ 3

Author(s):

ZACHARY S. RANDALL ◽

LAWRENCE M. PAGE

Keyword(s):

Lateral Line ◽

Head Length ◽

Pectoral Fin ◽

Caudal Fin ◽

Dorsal Fin ◽

Interorbital Width ◽

Fin Rays ◽

Orbital Rim ◽

Pectoral Fin Rays ◽

Pelvic Fin

The genus Homalopteroides Fowler 1905 is resurrected and distinguished from the genus Homaloptera van Hasselt 1823based on a combination of characters including a unique mouth morphology, dorsal-fin origin over pelvic fin,≤60 lateral-line scales, and≤30 predorsal scales. Species included in Homalopteroides are H. wassinkii (Bleeker 1853), H. modestus(Vinciguerra 1890), H. rupicola (Prashad & Mukerji 1929), H. smithi (Hora 1932), H. stephensoni (Hora 1932), H. weberi(Hora 1932), H. tweediei (Herre 1940), H. indochinensis (Silas 1953), H. nebulosus (Alfred 1969), H. yuwonoi (Kottelat1998), and possibly H. manipurensis (Arunkumar 1999). Homalopteroides modestus (Vinciguerra 1890) is a poorlyknown species that was originally described from the Meekalan and Meetan rivers of southern Myanmar. It occurs in theSalween, Mae Khlong, and Tenasserim basins, and can be distinguished from all other species of Homalopteroides by thecombination of caudal-fin pattern (black proximal and distal bars, median blotch), 15 pectoral-fin rays, pectoral-fin lengthgreater than head length, 5½–6½ scales above and 5–6 scales below the lateral line (to the pelvic fin), 39–44 total lateral-line pores, no axillary pelvic-fin lobe, pelvic fin not reaching anus, orbital length less than interorbital width in adult, and maxillary barbel reaching to or slightly past the anterior orbital rim.

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A new species of Osteobrama (Teleostei: Cyprinidae) from the Mahanadi River, India with a note on the validity of O. dayi

Zootaxa ◽

10.11646/zootaxa.4722.1.6 ◽

2020 ◽

Vol 4722 (1) ◽

pp. 68-76

Author(s):

BUNGDON SHANGNINGAM ◽

SHIBANANDA RATH ◽

ASHA KIRAN TUDU ◽

LAISHRAM KOSYGIN

Keyword(s):

New Species ◽

Valid Species ◽

Pectoral Fin ◽

Mahanadi River ◽

Dorsal Fin ◽

Fin Rays ◽

The Status ◽

A New Species ◽

Pectoral Fin Rays

A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul District, Odisha state, India. Osteobrama tikarpadaensis, new species, differs from its congeners in having two pairs of minute barbels; iii–iv unbranched dorsal-fin rays with 25–33 serrae on the last unbranched ray; 15–16 branched pectoral-fin rays, and 25–27 branched anal-fin rays. The status of Osteobrama dayi is discussed and shown to be a valid species. A key to the species of the genus is provided.

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Ituglanis macunaima, a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae)

Neotropical Ichthyology ◽

10.1590/s1679-62252005000400002 ◽

2005 ◽

Vol 3 (4) ◽

pp. 455-464 ◽

Cited By ~ 10

Author(s):

Aléssio Datovo ◽

Maria Isabel Landim

Keyword(s):

New Species ◽

Color Pattern ◽

Pectoral Fin ◽

Caudal Fin ◽

Mato Grosso ◽

Infraorbital Canal ◽

Fin Rays ◽

Pectoral Fin Rays ◽

Pelvic Fin

Ituglanis macunaima, new species, is described from the rio Araguaia basin, Mato Grosso, Brazil. It is distinguished from its congeners by the following combination of characters: posterior fontanel absent; pectoral-fin rays usually i,4; pelvic-fin rays usually i,4; branched caudal-fin rays usually 5,5; mottled color pattern formed by irregular to roundish dark brown spots on whitish background; reduced supraorbital canal with pores s1 and s2 lacking; reduced infraorbital canal with pores i1 and i3 lacking; 2-3 pleural ribs; and 35-38 vertebrae. A detailed description and illustrations of the skeleton of I. macunaima are also provided. Comparisons with other trichomycterids are presented, and several reductive traits of I. macunaima are discussed. Some comments are made about the systematics and phylogeny of the genus.

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Review of the Brazilian species of Physiculus (Gadiformes: Moridae), with description of a new species from Saint Peter and Saint Paul Archipelago, equatorial Atlantic

Zootaxa ◽

10.11646/zootaxa.4671.1.5 ◽

2019 ◽

Vol 4671 (1) ◽

pp. 67-80 ◽

Cited By ~ 2

Author(s):

ALESSANDRA M. A. PIRES ◽

ALFREDO CARVALHO-FILHO ◽

RÔMULO C. P. FERREIRA ◽

DANIELLE VIANA ◽

DIOGO NUNES ◽

...

Keyword(s):

New Species ◽

Saint Paul ◽

Valid Species ◽

Equatorial Atlantic ◽

Pectoral Fin ◽

Dorsal Fin ◽

Brazilian Species ◽

Fin Rays ◽

Saint Peter ◽

Pectoral Fin Rays

Three valid species of the genus Physiculus are known from the Brazilian marinewaters. A fourth, new species, Physiculus cirm n. sp.., is described based on seventeen specimens collected in the surroundings of Saint Peter and Saint Paul Archipelago, equatorial Atlantic. A review of the Brazilian species of Physiculus is provided, as well as a key to the species of the genus reported from the Atlantic Ocean. The new species is distinguished from all its congeners, except P. cynodon and P. karrerae, by the large number of longitudinal series of scales (156–189 vs. 70–150). P. cynodon from the Northern Pacific has about 200 longitudinal series of scales, and it differs from the new species by the number of rays of the first dorsal fin (6–8 vs. 10 in P. cynodon), pectoral-fin rays (20–25 vs. 27 in P. cynodon), and the presence of an outer row of large canine teeth on upper and lower jaw. From P. karrerae, which has 134–160 longitudinal series of scales, the new species differs by the presence of scales on the tip of the snout and dorsal-fin membrane, and the number of pectoral-fin rays (20–25 vs. 24–27 in P. karrerae). [Zoobank URL: urn:lsid:zoobank.org:act:1AFBC251-2BB1-4479-98A4-307188EC5D66]

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Paracaesio brevidentata n. sp., a new snapper (Lutjanidae: Apsilinae) from Indonesia

Zootaxa ◽

10.11646/zootaxa.3418.1.4 ◽

2012 ◽

Vol 3418 (1) ◽

pp. 51 ◽

Cited By ~ 1

Author(s):

WILLIAM T. WHITE ◽

PETER R. LAST

Keyword(s):

New Species ◽

First Record ◽

Pectoral Fin ◽

Caudal Fin ◽

Fin Rays ◽

A New Species ◽

Pectoral Fin Rays

Paracaesio brevidentata, a new species of apsiline lutjanid fish from southeastern Indonesia, is described, bringing thetotal number of known species in this deepwater snapper genus to nine. The new species is distinguished from its conge-ners by the following combination of characters: very small teeth in jaws without enlarged canines, tubular lateral-linescales 71–73, pectoral-fin rays 18 or 19, caudal fin deeply forked, penultimate rays of soft dorsal and anal fins not longerthan adjacent rays, snout short, maxilla scaly and body purplish brown and caudal fin reddish with upper and lower lobessimilar in colour. Members of the genus are distinguished in a key. A specimen of Paracaesio caerulea from southeastern Indonesia represents the first record of this species from Indonesian waters.

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A review of the species in the Apogon fasciatus group with a description of a new species of cardinalfish from the Indo-West Pacific (Perciformes: Apogonidae)

Zootaxa ◽

10.11646/zootaxa.924.1.1 ◽

2005 ◽

Vol 924 (1) ◽

pp. 1 ◽

Cited By ~ 9

Author(s):

THOMAS H. FRASER

Keyword(s):

New Species ◽

Lateral Line ◽

Pectoral Fin ◽

Gill Rakers ◽

Caudal Peduncle ◽

Fin Rays ◽

Vertical Bars ◽

Ventral Edge ◽

A New Species ◽

Pectoral Fin Rays

Nine nominal, Indo-West Pacfic species are treated: Apogon fasciatus (White, 1790), Apogon quadrifasciatus Cuvier in Cuvier & Valenciennes, 1828, Apogon monogramma Günther, 1880, Apogon septemstriatus Günther, 1880, Apogon evanidus Fowler 1904, Apogon elizabethae (Jordan & Seale, 1905), Apogon quinquestriatus Regan, 1908, Apogon kiensis Jordan & Snyder, 1901 and Apogon bryx Fraser, 1998. Four species treated as valid have VII first-dorsal spines: Apogon fasciatus with two brownish stripes on each side of the head and body to caudal peduncle and a faint, variable stripe along a portion of the lateral-line, 16 (15) pectoral-fin rays, and 14–17 (12, 13 or 18) gill rakers, Apogon quinquestriatus with four brownish stripes on each side of head and body, two reaching the caudal peduncle, 15 pectoral-fin rays, and 15 gill rakers, Apogon septemstriatus with three brownish stripes on each side of head and body, three reaching the caudal peduncle, 14 (13) pectoral-fin rays, and 14–16 gill rakers, Apogon pleuron, new species, with two brownish stripes on each side of head and body reaching the caudal peduncle, ventral edge of midlateral stripe with vertical bars, 15 (14 or16) pectoral-fin rays, and 17–20 (15, 16 or 21) gill rakers. Two species treated as valid have VI first-dorsal spines: Apogon bryx with three brownish stripes on each side of head and body, two reaching the caudal peduncle, 14–15 pectoral-fin rays, and 22–23 (21 or 24) gill rakers, Apogon kiensis, with two brownish stripes on each side of head and body reaching the caudal peduncle, 14–15 pectoral-fin rays, and 16–18 (15 or 19-20) gill rakers. The long recognized name, Apogon quadrifasciatus, is synonymous with Apogon fasciatus.

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Romanogobio skywalkeri, a new gudgeon (Teleostei: Gobionidae) from the upper Mur River, Austria

Zootaxa ◽

10.11646/zootaxa.4403.2.6 ◽

2018 ◽

Vol 4403 (2) ◽

pp. 336 ◽

Cited By ~ 2

Author(s):

THOMAS FRIEDRICH ◽

CHRISTIAN WIESNER ◽

LUKAS ZANGL ◽

DANIEL DAILL ◽

JÖRG FREYHOF ◽

...

Keyword(s):

New Species ◽

Mediterranean Basin ◽

Slender Body ◽

Valid Species ◽

Pectoral Fin ◽

Dorsal Fin ◽

Coi Barcoding ◽

Fin Rays ◽

The Mediterranean Basin ◽

Pectoral Fin Rays

Romanogobio skywalkeri, new species, is described from the upper Mur River in the Austrian Danube drainage. It is related to R. banarescui from the Mediterranean basin. Romanogobio skywalkeri is distinguished from R. banarescui by lacking epithelial crests on the predorsal back, having 12–14 total pectoral-fin rays (vs. 10–11) and usually 8½ branched dorsal-fin rays (vs. 7½). It is distinguished from other Romanogobio species in the Danube drainage by having a very slender body; a moderately long barbel, extending slightly beyond the posterior eye margin; and no epithelial crests on the predorsal back. Romanogobio skywalkeri is distinguished by a minimum net divergence of 6.3% (uncorrected p-distance against R. banarescui) in the COI barcoding region from other European Romanogobio species. A key to the Romanogobio species of the Danube drainage is provided. Romanogobio banarescui from the Vardar drainage and R. carpathorossicus from the Danube drainage are treated as valid species.

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