Callogobius falx, a new species of goby from southern Japan

Zootaxa ◽  
2021 ◽  
Vol 5048 (2) ◽  
pp. 253-264
Author(s):  
KYOJI FUJIWARA ◽  
TOSHIYUKI SUZUKI ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Ryukyu Islands ◽  
Pectoral Fin ◽  
Body Depth ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Southern Japan ◽  
The Ryukyu Islands ◽  
Fin Rays ◽  
Pelvic Fin

Callogobius falx n. sp. (Gobiidae) is described on the basis of two specimens (14.4 and 23.1 mm in standard length: SL) from the Ryukyu Islands, southern Japan. The new species is characterized by the following combination of characters: dorsal-fin rays VI-I, 8 or 9; anal-fin rays I, 7; pectoral-fin rays 18 or 19; lateral scale rows 20–22; body depth moderate, neither particularly slender nor deep (depth at pelvic-fin origin 18.3–20.0% of SL); pelvic-fin base with frenum; caudal-fin length moderate, margin rounded; cephalic sensory-canal pores absent; interorbital papillae row separated, forming two rows (one row in 14.4 mm paratype); postorbital papillae row not continuous with upper cranial papillae row; preopercular and transverse opercular papillae rows connected, forming single transverse row; body with three oblique black bars, angled upwards anteriorly and continuous with black bars on dorsal fins, anteriormost bar extending from 1st dorsal fin to midline of body, posterior two bars extending from second dorsal fin to dorsal surface of body and caudal peduncle, respectively; pectoral fin white, upper half widely (ca. 1/2 length of rays) margined with black; caudal-fin base with narrow sickle-like bar.  

Navigobius kaguya, new species of ptereleotrine goby (Teleostei: Gobiidae) from the West Pacific

Zootaxa ◽  
2017 ◽  
Vol 4347 (2) ◽  
pp. 371 ◽  
Author(s):  
ANTHONY C. GILL ◽  
YI-KAI TEA ◽  
HIROSHI SENOU
Keyword(s):  
New Species ◽  
Ryukyu Islands ◽  
Undescribed Species ◽  
Pectoral Fin ◽  
The West ◽  
Gill Rakers ◽  
Dorsal Fin ◽  
The Ryukyu Islands ◽  
Fin Rays ◽  
Pectoral Fin Rays

Navigobius kaguya is described on the basis of two specimens from the Ryukyu Islands, Japan, and Luzon, Philippines. It differs from other described species of the genus in live coloration, and in having: second dorsal-fin rays I,16; anal-fin rays I,16; pectoral-fin rays 21–22; gill rakers 5–6 + 17; and first dorsal fin weakly to moderately incised between spines, taller than second dorsal. It closely resembles an undescribed species from Bali and the Maldives, but differs in lacking an orange-red mid-lateral stripe. The possible placement of Navigobius khanhoa in Oxymetapon is discussed. 

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.

Navigobius asayake, a new species of ptereleotrine goby (Gobioidei: Microdesmidae) from Kagoshima, southern Japan

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 373
Author(s):  
MAKOTO OKAMOTO ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Dorsal Fin ◽  
Southern Japan ◽  
Fin Rays ◽  
Eye Diameter ◽  
Yellow Stripe ◽  
Fin Length ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A new species of ptereleotrine dartfish, Navigobius asayake, is described based on four specimens (45.0–52.1 mm in standard length: SL) collected from off the Satsuma Peninsula and Tanegashima island, Kagoshima, southern Japan. It is distinguished from other congeners by the following combination of characters: second dorsal-fin rays I, 18–19; anal-fin rays I, 19; pectoral-fin rays 21–22; gill rakers 5–6 + 13–15; head length 25.1–26.4% SL; eye diameter 8.6–10.0% SL; pelvic-fin length 15.2–16.1% SL; and a well-developed yellow stripe extending from behind upper part of eye to beneath first dorsal fin. 

A new species of Astyanax Baird & Girard (Characiformes: Characidae) from western Chapada Diamantina, Bahia, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4604 (2) ◽  
pp. 369 ◽  
Author(s):  
RAFAEL BURGER ◽  
FERNANDO R. CARVALHO ◽  
ANGELA M. ZANATA
Keyword(s):  
New Species ◽  
Species Complex ◽  
Morphological Characters ◽  
Body Depth ◽  
Chapada Diamantina ◽  
Dorsal Fin ◽  
Astyanax Scabripinnis ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

A new species of Astyanax from the upper rio Paraguaçu basin, Chapada Diamantina, Bahia, Brazil, is described. Astyanax sincora shares characters currently used to define the Astyanax scabripinnis species complex, as highest body depth approximately at vertical through pectoral-fin midlength and a low number of branched anal-fin rays (13–17). It differs from its congeners by a combination of characters, including eight branched dorsal-fin rays, six branched pelvic-fin rays, presence of bony hooks in pectoral and anal fins of males, dark midlateral line or stripe initiating posteriorly to the vertically elongate humeral blotch, and by the presence of 30–35 scales in the median longitudinal series. The generic positioning of the new species and some polymorphic morphological characters in Astyanax are briefly discussed. The degree of completeness of the lateral line in Hyphessobrycon balbus is discussed. [Species Zoobank registration: urn:lsid:zoobank.org:pub:D708FE7E-3FB5-4729-B438-779717F7ED1A] 

scholarly journals A new grenadier of the genus Nezumia (Pisces: Gadiformes: Macrouridae) from southern Japan

Zootaxa ◽  
2012 ◽  
Vol 3410 (1) ◽  
pp. 61 ◽  
Author(s):  
NAOHIDE NAKAYAMA ◽  
HIROMITSU ENDO
Keyword(s):  
New Species ◽  
Continental Slope ◽  
Dark Band ◽  
Dorsal Fin ◽  
Southern Japan ◽  
Fin Rays ◽  
Upper Jaw ◽  
Pelvic Fin

A new grenadier, Nezumia shinoharai, is described based on two specimens collected from the continental slope off thePacific coast of southern Japan, at depths of 627–700 m. The new species is clearly distinguished from all other congenersby the following combination of characters: pelvic fin rays 10; spinules on body scales needlelike, arranged in discreteparallel rows; underside of head almost completely naked with prominent sensory pores; teeth in broad cardiform bandsin both jaws; snout long (31–34% HL), conically pointed, protruding well beyond upper jaw; first dorsal fin uniformlydark with pale distal tip, second spinous ray not extremely elongated (height of first dorsal fin about equal to HL); no dark band encircling trunk.

A review of the genus Pareuchiloglanis (Sisoridae) from the Lancangjiang (upper Mekong River) with descriptions of two new species from Yunnan, China

Zootaxa ◽  
2007 ◽  
Vol 1440 (1) ◽  
pp. 1 ◽  
Author(s):  
XU LI ◽  
WEI ZHOU ◽  
ALFRED W. THOMSON ◽  
QING ZHANG ◽  
YING YANG
Keyword(s):  
New Species ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Lower Lip ◽  
Dorsal Fin ◽  
Gill Opening ◽  
Fin Ray ◽  
Two New Species ◽  
Adipose Fin ◽  
Pelvic Fin

This study reports five species of Pareuchiloglanis in the Lancangjiang drainage of China, including descriptions of two new species: P. abbreviatus sp. nov., P. gracilicaudata, P. kamengensis, P. myzostoma and P. prolixdorsalis sp. nov. The two new species are distinguished from P. feae, P. poilanei, P. sichuanensis and P. tianquanensis by a shorter adipose-fin base and the adipose-fin base being separated from the caudal fin, differ from P. sinensis, P. macrotrema, P. longicauda and P. rhabdurus by a more restricted gill opening (not reaching the base of the first pectoral-fin element ventrally), and differ from P. songmaensis by an anal-fin ray count of ii-3-4 (vs. ii-8). Pareuchiloglanis abbreviatus is distinguished from congeners by the tip of the dorsal fin reaching the origin of the adipose fin when depressed. Pareuchiloglanis prolixdorsalis is distinguished from P. gongshanensis, P. macropterus and P. kamengensis by lacking a sulcus between the lower lip and the base of the maxillary barbel, and differs from P. anteanalis by the shorter pectoral fin, the pectoral fin not reaching to the origin of pelvic fin. It differs from P. gracilicaudata, P. myzostoma, P. nebulifer and P. robusta by a caudal-fin ray count of 6+7 (vs. 7+8), and differs from P. abbreviatus by the tip of dorsal fin not reaching to the origin of the adipose fin when depressed (vs. reaching). It differs from P. songdaensis by the distance between the origin of the pelvic fin to the base of the anal fin being longer than that to the mouth (vs. equal).  

A new species of Schindler's fish (Teleostei: Gobiidae: Schindleria) from the Malay Archipelago (Southeast Asia), with notes on the caudal fin complex of Schindleria

Zootaxa ◽  
2018 ◽  
Vol 4531 (1) ◽  
pp. 95
Author(s):  
HARALD AHNELT ◽  
MICHAEL SAUBERER
Keyword(s):  
New Species ◽  
Body Depth ◽  
Caudal Fin ◽  
Gobiid Fish ◽  
Dorsal Fin ◽  
Malay Archipelago ◽  
Fin Ray ◽  
Fin Rays ◽  
A New Species ◽  
Radial Plate

Schindleria macrodentata sp. nov., a new species of the paedomorphic gobiid fish genus Schindleria, is described from the Malay Archipelago. The two specimens were collected in 1929 during the “Dana Expedition” in the Molucca Sea between Sulawesi and Halmahera islands (00°29′N, 125°54′E) (Indonesia) and in the Sulu Sea close to Panay Island (11°43’N, 121°43′E) (Philippines). The new species is characterized by a slender body (body depth at pectoral fin base 3.6–3.7 % of SL and at anal fin origin 3.9–4.8 % of SL), a long second dorsal fin (first dorsal fin absent) originating distinctly anterior to the origin of the anal fin (predorsal length 61.8–65.2 % of SL and preanal length 71.7–75.8 % of SL), a short tail (from anus to tip of longest caudal fin ray) (22.1 % of SL), 19–20 dorsal fin rays and 10 anal fin rays, first anal fin ray below 9th dorsal fin ray, few large, widely spaced teeth in the upper and the lower jaws (7 on the premaxilla and 6 on the dentary), an elongated pectoral radial plate (length 3.7–4.5 % of SL) and, in the caudal skeleton, a procurrent ray with an additional spiny process at its base. No distinct urogenital papilla and no pigmentation on body are developed. In this study we present three morphological traits until now not considered as diagnostic characters for Schindleria, the shape of the pectoral radial plate, the shape of the last procurrent caudal spine and the shape of the arch formed by the lower jaw. We also discuss the caudal-fin skeleton of Schindleria, a character developing beyond the larval stages. The record of S. macrodentata is the first of the genus Schindleria for Indonesia and, at more than 100 km distant to the next shore, it is the first offshore record of a Schindler's fish. 

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

2005 ◽  
Vol 3 (4) ◽  
pp. 455-464 ◽  
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.

New species of the anthiadin genus Sacura (Perciformes: Serranidae) from the Andaman Sea

Zootaxa ◽  
2017 ◽  
Vol 4306 (2) ◽  
pp. 291 ◽  
Author(s):  
HIROYUKI MOTOMURA ◽  
TOMOHIRO YOSHIDA ◽  
VEERA VILASRI
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Andaman Sea ◽  
Gill Rakers ◽  
Yellow Band ◽  
Body Depth ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Fin Length

Sacura sanguinea n. sp. (Serranidae: Anthiadinae) is described on the basis of two male and one female specimens from the Andaman Sea. The new species is characterized by the following characters: dorsal-fin rays X, 15; pored lateral-line scales 34; gill rakers 8 + 23 = 31; body depth 42.6–44.7% of SL; head length 39.5–41.4% of SL; pectoral-fin length 32.4–33.1% of SL; poorly defined broad yellow band from anterior profile of head to middle of body, the band gradually becoming red around middle of body and ending at caudal-fin base; caudal fin with distinct red spots centrally; and large dark red blotch posteriorly on spinous portion of dorsal fin in females. 

scholarly journals New species of Eugerres from the Usumacinta Province, México and Guatemala with a redescription of E. mexicanus (Steindachner, 1863) (Teleostei: Gerreidae)

2013 ◽  
Vol 11 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Adrian F. Gonzalez-Acosta ◽  
Rocio Rodiles-Hernandez
Keyword(s):  
New Species ◽  
The Body ◽  
Body Depth ◽  
Morphometric Characters ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Freshwater Habitats ◽  
Eye Diameter ◽  
Pelvic Fin

Eugerres castroaguirrei, new species is described from the río Grijalva-Usumacinta basin of southeastern Mexico and northern Guatemala. Eugerres castroaguirrei and E. mexicanus are distinguishable from their marine estuarine congeners by the dorsal-fin origin posterior to the insertion of the pectoral and pelvic fins, a shorter and broad based supraoccipital crest, and a distinct geographic distribution restricted to freshwater habitats. Eugerres castroaguirrei differs from E. mexicanus by diagnostic characters of the body skeleton: anterior process of supraoccipital convex, infraorbital 1 with foramen, premaxillary ascending process developed with margins curved, pharyngeal plate granular and not serially arranged, and dorsal and anal fin-rays reduced. Likewise, E. castroaguirrei is characterized by an oblong and laterally thicker body (37.6-58.5% HL); greater body depth (33.8-42.1% SL), and eye diameter (23.3-31.6% HL); in addition to 16 significant morphometric characters: length of the second dorsal-fin spine 23.2-34.2% SL; depressed second dorsal-fin spine (extending to base of third to fourth dorsal-fin rays); length of second anal-fin spine 11.1-20.6% SL, depressed second anal-fin spine extending to the base of third to fourth anal-fin rays not reaching the distal point of last anal-fin ray; pelvic-fin spine length 49.7-65.0% in the first pelvic-fin ray length

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