A new wrasse, Novaculops compressus n. sp. (Perciformes: Labridae), from the western Pacific Ocean

Zootaxa ◽  
2020 ◽  
Vol 4742 (3) ◽  
pp. 555-564
Author(s):  
YOSHINO FUKUI
Keyword(s):  
Lateral Line ◽  
The Philippines ◽  
Western Pacific Ocean ◽  
Pectoral Fin ◽  
Body Depth ◽  
Spine Length ◽  
Dorsal Fin ◽  
Fin Rays ◽  
The Western Pacific ◽  
Pectoral Fin Rays

A new sandy, Novaculops compressus n. sp. is described on the basis of two specimens collected from Yoron Island, Japan and Panay Island, the Philippines. The new species is characterized by IX, 12 dorsal-fin rays, III, 12 anal-fin rays, 12 or 13 pectoral-fin rays, interrupted lateral line, 12 + 5 pored lateral-line scales, 4 scale rows above lateral line, 9 scale rows below lateral line, 16 total gill rakers, snout length 11.1% of standard length (SL), orbit diameter 10.0–10.1% SL, body depth 30.9% SL, anal-fin base length 36.2–37.6% SL, first dorsal-fin spine length 6.4–7.0% SL, pectoral-fin axil black, and first two dorsal-fin membranes black. This species is sympatric with N. sciistius in Kagoshima, Japan. 

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

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 329 ◽  
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.

Bregmaceros anchovia sp. nov., a new codlet species from the western Pacific Ocean (Gadiformes: Bregmacerotidae)

Zootaxa ◽  
2020 ◽  
Vol 4801 (3) ◽  
pp. 559-569
Author(s):  
HSUAN-CHING HO ◽  
HIROMITSU ENDO ◽  
CHIA-LIEN LEE ◽  
TAH-WEI CHU
Keyword(s):  
Pacific Ocean ◽  
Ventral Surface ◽  
Western Pacific Ocean ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Caudal Vertebrae ◽  
Fin Rays ◽  
Southwestern Taiwan ◽  
The Western Pacific ◽  
Pectoral Fin Rays

A new codlet species is described from Japan, Taiwan, Indonesia and Australia. It is distinguished from its congeners by having a pointed snout extending beyond jaws, a stripe of black dots above anal-fin base, a black vertical band on caudal-fin base, and the following combination of characters: ventral surface of head and abdomen devoid of melanophores; ventral portion of abdominal vertebrae with a pointed parapophysis and a blunt ventral post-zygapophysis; peritoneum, pyloric caeca, and intestine pale; dorsal-fin rays 46–52; anal-fin rays 47–55; pectoral-fin rays 15–17; principal caudal-fin rays 12‒14; caudal vertebrae 35‒39; total vertebrae 50–54. Furthermore, as a result of this study, Bregmaceros pescadorus Shen described from southwestern Taiwan is herein recognized as a junior synonym of Bregmaceros nectabanus Whitley. 

Nandus prolixus, a new species of leaf fish from northeastern Borneo (Teleostei: Perciformes: Nandidae)

Zootaxa ◽  
2006 ◽  
Vol 1328 (1) ◽  
pp. 51 ◽  
Author(s):  
PROSANTA CHAKRABARTY ◽  
RONALD G. OLDFIELD ◽  
HEOK H. NG
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Slender Body ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays

Nandus prolixus sp. nov. is described from the Sepilok River drainage in Sabah, northeastern Borneo. This species is distinguished from its only Sundaic southeastern Asian congener, N. nebulosus, in having a longer, more produced snout (25.7–30.6% HL vs. 18.5–26.1), more lateralline scales (33–37 vs. 24–34), more scales below the lateral line (12 vs. 10–11), fewer spines in the dorsal fin (XIV vs. XV–XVI), and fewer pectoral-fin rays (15–16 vs. 17–19). It differs from N. nandus (from India) in having fewer lateral-line scales (33–37 vs. 42–55), fewer scales above the lateral line (4–5 vs. 6–7), fewer scales below the lateral line (12 vs. 14–18), more dorsal spines (XIV vs. XII–XIII), and the absence (vs. presence) of a distinct dark spot at the base of the caudal peduncle. It differs from N. oxyrhynchus (from mainland southeastern Asia) in having a more slender body (body depth 37.6–40.5% SL vs. 41.3–44.1) and a less steeply sloping predorsal profile.

Nandus mercatus (Teleostei: Perciformes: Nandidae), a new leaf fish from Sumatra

Zootaxa ◽  
2008 ◽  
Vol 1963 (1) ◽  
pp. 43-53 ◽  
Author(s):  
HEOK HEE NG
Keyword(s):  
Lateral Line ◽  
Pectoral Fin ◽  
Body Depth ◽  
River Drainage ◽  
Fin Rays ◽  
Musi River ◽  
Pectoral Fin Rays

Nandus mercatus sp. nov. is described from the Musi River drainage in Sumatra. It differs from all congeners in having a combination of the following characters: body depth 43.0–43.2% SL, 15 pectoral-fin rays, 29–32 lateral line scales, 11–12 scale rows below the lateral line, and slightly concave predorsal profile. The characters that diagnose the genus are also reviewed and identified. Nandus is here diagnosed as having the following combination of characters: ectopterygoid toothed, posterodorsal corner of the subopercular not produced into a slender process and the second preural centrum with a distally bifurcate hemal spine.

scholarly journals Plectorhinchus makranensis (Teleostei, Haemulidae), a new species of sweetlips from the Persian Gulf and the Gulf of Oman

ZooKeys ◽  
2020 ◽  
Vol 980 ◽  
pp. 141-154
Author(s):  
Ehsan Damadi ◽  
Faezeh Yazdani Moghaddam ◽  
Fereshteh Ghassemzadeh ◽  
Mehdi Ghanbarifardi
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Persian Gulf ◽  
Pectoral Fin ◽  
Gill Rakers ◽  
Gulf Of Oman ◽  
Dorsal Fin ◽  
Fin Rays ◽  
The Persian Gulf ◽  
Pectoral Fin Rays

Plectorhinchus makranensissp. nov. is described on the basis of 16 specimens from the Persian Gulf and Gulf of Oman, in the Northwest Indian Ocean. The new species can be distinguished from congeners by a combination of dorsal fin rays XII, 18–20, pectoral-fin rays 16–17, tubed lateral-line scales 55–57, gill rakers count (10–12 on the upper limb and 16–17 on the lower limb), 17–18 scales between the lateral line and the first anal-fin spine, 30–31 circumpeduncular scale rows and color pattern. Plectorhinchus makranensissp. nov. is distinguished from P. schotaf by having the posterior margin of the opercular membrane grey (vs. red in P. schotaf), fewer circumpeduncular scale rows, and a shorter base of the soft portion of the dorsal fin, 27.6–29.4% of standard length (SL) (vs. 31–32.3% of SL in P. schotaf). The new species resembles P. sordidus but is differentiated from it by having more gill rakers, a smaller orbit diameter 27.5–32.1% of head length (HL) (vs. 35.5–37.2% of HL in P. sordidus), a longer caudal peduncle 19.2–21.3% of SL (vs. 17.1–17.9% of SL in P. sordidus), and the first to third pectoral-fin rays light gray (vs. dark gray in P. sordidus). The new species can also be distinguished from the other species, including P. schotaf and P. sordidus, based on COI and Cyt b molecular markers. The phylogenetic position of this new species indicates that it is a sister taxon of P. schotaf.

Samariscus neocaledonia, a new righteye flounder (Teleostei: Pleuronectiformes: Samaridae) from New Caledonia

Zootaxa ◽  
2011 ◽  
Vol 3135 (1) ◽  
pp. 63 ◽  
Author(s):  
TOSHIO KAWAI ◽  
KUNIO AMAOKA ◽  
BERNARD SÉRET
Keyword(s):  
New Species ◽  
Lateral Line ◽  
New Caledonia ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Deep Waters ◽  
Caudal Vertebrae ◽  
Fin Rays ◽  
Pectoral Fin Rays

A new righteye flounder, Samariscus neocaledonia sp. nov., is described on the basis of two specimens collected in deep waters (244–278 m) around New Caledonia. The new species is easily distinguished from its 18 congeners in having a combination of 78–81 dorsal fin rays, 62–65 anal fin rays, five pectoral fin rays, ca. 55–62 lateral line scales, and 10 abdominal and 31–32 caudal vertebrae.

Description of two new species ofOphthalmolycus(Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus

2010 ◽  
Vol 91 (2) ◽  
pp. 561-567 ◽  
Author(s):  
Jesús Matallanas
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Lateral Line ◽  
Gill Slit ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Two New Species ◽  
Fin Rays ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

Two new species of zoarcid fish,Ophthalmolycus eastmanisp. nov., andOphthalmolycus polylepissp. nov. are described from specimens collected from the Bellingshausen Sea and Gerlache Strait, Southern Ocean, at depths of 1837 and 1056 m.Ophthalmolycus eastmanican be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips and snout; gill slit extending ventrally to the lower margin of the pectoral fin base; vertebrae asymmetrical 26 − 27 + 91 − 92 = 117 − 118; dorsal fin rays 111–113; dorsal fin origin associated with vertebra 6, with no free pterygiophores; pectoral fin rays 17–18; two postorbital pores; lateral line with ventral and mediolateral branches; scales extending anteriorly to just anterior to the anal fin origin; six branchiostegal rays; oral valve nearly reaching the anterior edge of vomer; palatine teeth in two rows anteriorly; 3–5 pseudobranch filaments; two well developed pyloric caeca; pelvic fin and vomerine teeth present.Ophthalmolycus polylepiscan be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips; gill slit extending ventrally just to below mid-pectoral fin base; interorbital pore present; two postorbital pores; lateral line triple with ventral, mediolateral and dorsolateral branches; scales extending anteriorly to predorsal area, abdomen, pelvic fins base, and pectoral fins base and axil; vertebrae asymmetrical 22 + 76; dorsal fin origin associated with vertebra 5; pectoral fin rays 18; six branchiostegal rays; oral valve overlapping the anterior edge of vomer; two rows of palatine teeth anteriorly; two vestigial pyloric caeca and 2 pseudobranch filaments; pelvic fin and vomerine teeth present. A key to the species ofOphthalmolycusis provided.

Redescription of Mugil setosus Gilbert 1892 with comments on the occurrence of Mugil curema Valenciennes 1836 in the Pacific Ocean (Teleostei: Perciformes: Mugilidae)

Zootaxa ◽  
2019 ◽  
Vol 4671 (3) ◽  
pp. 396-406
Author(s):  
RICARDO BRITZKE ◽  
NAÉRCIO A. MENEZES ◽  
MAURO NIRCHIO
Keyword(s):  
Pacific Ocean ◽  
Pacific Coast ◽  
The Third ◽  
Dorsal Fin ◽  
The Pacific ◽  
Fin Rays ◽  
The Pacific Ocean ◽  
The Western Pacific ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

Mugil setosus Gilbert 1892 was originally described by Gilbert based on specimens from Clarion Island, in the western and most remote of the Revillagigedo Islands, about 1,000 km off the western Pacific coast of Mexico. Examination of the type of material and recently collected specimens from Ecuador and Peru, resulted in the redescription provided herein. Diagnostic characters of the species were mainly: tip of the pelvic fin reaching beyond the vertical through the base of the third dorsal-fin spine, the pectoral-fin rays with ii+13–14 rays, the anterodorsal tip of second (soft) dorsal fin uniformly dark, and an external row of larger teeth, and more internally a patch of scattered smaller teeth, visible mainly in adults 150 mm SL. The expansion of geographic distribution of Mugil setosus and occurrence of Mugil curema Valenciennes 1836 in the Pacific Ocean are discussed. 

A new species of Jupiaba Zanata, 1997 (Ostariophysi, Characiformes, Characidae) from the rio Tocantins drainage, Brazil

Zootaxa ◽  
2007 ◽  
Vol 1614 (1) ◽  
pp. 53-60 ◽  
Author(s):  
THIAGO N.A. PEREIRA ◽  
PAULO H.F. LUCINDA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Pectoral Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays

A new characid species, Jupiaba elassonaktis, is described from the rio Tocantins drainage. The new species is distinguished from its congeners by the following combination of characters: medial cusps of premaxillary teeth much larger than remaining cusps, dentary teeth decreasing abruptly in size from the fifth tooth backwards, first dorsaland anal-fin rays not prolonged by an elongate filament, presence of a vertically elongate humeral spot, 33–39 scales on lateral line, 5–7 scales series above lateral line, 9–11 pectoral-fin rays, and a incomplete series of median predorsal scales.

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

Zootaxa ◽  
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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