Snake eels of the genus Ophichthus (Anguilliformes: Ophichthidae) from Myanmar (Indian Ocean) with the description of two new species

Zootaxa ◽  
2018 ◽  
Vol 4526 (1) ◽  
pp. 71
Author(s):  
JOHN E. McCOSKER ◽  
PETER N. PSOMADAKIS
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Pectoral Fin ◽  
Vertebral Number ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Two New Species ◽  
Upper Jaw

Two new species of ophichthid eels, subfamily Ophichthinae, are described and illustrated from specimens collected from Myanmar by the R/V Dr. Fridtjof Nansen. Included are: Ophichthus nansen sp. nov., from 103–106 m depth, which is unique in its vertebral number (11-53-116), dorsal-fin origin (above mid-pectoral fin), jaw dentition (small, conical and mostly biserial), and coloration (dark gray-brown, fins black); and Ophichthus naga sp. nov., from 455–459 m depth, which is unique in its vertebral number (15-65-153), dorsal-fin origin (well behind pectoral fin), dentition (small, conical, biserial in upper jaw and uniserial in lower jaw and on vomer), and dark brown coloration. Also new to Myanmar are Ophichthus cephalozona Bleeker, 1864, and O. lithinus (Jordan & Richardson, 1908), which are diagnosed and treated herein. 

A review of the deepwater cardinalfish genus Epigonus (Perciformes: Epigonidae) of the Western Indian Ocean, with description of two new species

Zootaxa ◽  
2018 ◽  
Vol 4382 (2) ◽  
pp. 261 ◽  
Author(s):  
MAKOTO OKAMOTO ◽  
OFER GON
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Gulf Of Aden ◽  
Gill Rakers ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Two New Species ◽  
Opercular Spine ◽  
Abdominal Vertebra

The fishes of the genus Epigonus Rafinesque, 1810 in the Western Indian Ocean (including the Red Sea and the Gulf of Aden) are reviewed. Twelve species of the genus are recognized: Epigonus angustifrons Abramov & Manilo, 1987; E. denticulatus Dieuzeide, 1950; E. elongatus Parin & Abramov, 1986; E. exodon Okamoto & Motomura, 2012; E. lenimen (Whitley, 1935); E. macrops (Brauer, 1906); E. marimonticolus Parin & Abramov, 1986; E. marisrubri Krupp, Zajonz & Khalaf, 2009; E. pectinifer Mayer, 1974; E. robustus (Barnard, 1927); E. telescopus (Risso, 1810); E. waltersensis Parin & Abramov, 1986, and two new species, E. bispinosus n. sp. and E. idai n. sp. Epigonus bispinosus and E. idai belong to the E. constanciae group, defined as having a pungent opercular spine, more than 45 pored lateral-line scales, and lacking an isolated dorsal fin spine between the first- and second dorsal fins. Epigonus bispinosus differs from other members of the group in having two small spines on the symphysis of lower jaw, a pair of ribs on the last abdominal vertebra, 10 + 15 vertebrae, 31–33 gill rakers and lacking a maxillary mustache-like process. Epigonus idai differs from other members of the group in having a pair of ribs on the last abdominal vertebra, 4–5 tiny projections present on symphysis of lower jaw, 10 + 15 vertebrae, strongly ctenoid scales, and 28–29 gill rakers, and in lacking a maxillary mustache-like process. A key to the species, photographs, diagnoses, and distributions in the Western Indian Ocean are given. 

The barracudina genera Lestidium and Lestrolepis of Taiwan, with descriptions of two new species (Aulopiformes: Paralepididae)

Zootaxa ◽  
2019 ◽  
Vol 4702 (1) ◽  
pp. 114-139
Author(s):  
HSUAN-CHING HO ◽  
SONG-YU TSAI ◽  
HSING-HUI LI
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Abdominal Cavity ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Caudal Vertebrae ◽  
Two New Species ◽  
Upper Jaw ◽  
One New Species ◽  
Pelvic Fin

Two genera of barracudinas with luminescent duct in abdominal cavity, Lestrolepis and Lestidium, collected from around Taiwan are studied. Two species in each genus are recognized in Taiwan, including one new species in each genus. New diagnostic characters are used to distinguish these species. Lestrolepis nigroventralis sp. nov. is similar to Lestrolepis intermedia and can be distinguished by having 32–35 prehaemal vertebrae; dorsal-fin origin slightly in front of midline of distance between origins of pelvic and anal fins, distance between origins of dorsal and pelvic fin 9.8–11.7% SL; and pelvic-fin origin at or slightly behind midline of body, prepelvic length 50.6–52.6% SL. Lestidium orientale sp. nov. is similar to Lestidium atlanticum and can be distinguished by having prehaemal vertebrae 37–40; caudal vertebrae 41–44; a relatively short and deep head, reflected by a shorter snout (9.7–10.4% SL), shorter upper jaw (8.6–10.1% SL), shorter lower jaw (11.9–13.7% SL) and a deeper head (31.2–33.9% HL). Data of Lestrolepis japonicus and Lestidium prolixium collected from Taiwan, as well as two Atlantic congeners, are provided. DNA barcoding is conducted to support the recognition of these new species. 

scholarly journals Scorpaena decemradiata new species (Teleostei: Scorpaenidae) from the Gulf of Aqaba, northern Red Sea, a species distinct from Scorpaena porcus

2018 ◽  
Vol 82 (3) ◽  
pp. 169
Author(s):  
Ronald Fricke ◽  
Daniel Golani ◽  
Brenda Appelbaum-Golani ◽  
Uwe Zajonz
Keyword(s):  
New Species ◽  
Red Sea ◽  
Gulf Of Aqaba ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Fin Ray ◽  
Fin Rays ◽  
Northern Red Sea ◽  
Scorpaena Porcus

The scorpionfish Scorpaena decemradiata n. sp. is described from off the coast of Israel in the Gulf of Aqaba, northern Red Sea. The new species is similar to S. porcus Linnaeus, 1758, but is characterized by dorsal fin spines XII, soft dorsal fin rays 10 (the last divided at base); pectoral fin rays 16, uppermost branched pectoral fin ray is the second; lacrimal with 2 spines over maxilla that point at nearly right angle from each other, the posterior pointing ventrally and slightly anteriorly; occipital pit well developed; anteriormost mandibular lateral-line pores small, separated; scales ctenoid; 59-62 scale rows in longitudinal series; scales absent on chest and pectoral fin base; and cirri developed over entire head and body, but no cirri on lower jaw. An updated checklist of the species of the genus Scorpaena Linnaeus, 1758 and a key to the species of the eastern Atlantic, Mediterranean Sea and Red Sea are presented.

Stolephorus babarani, a new species of anchovy (Teleostei: Clupeiformes: Engraulidae) from Panay Island, central Philippines

Zootaxa ◽  
2020 ◽  
Vol 4718 (4) ◽  
pp. 509-520 ◽  
Author(s):  
HARUTAKA HATA ◽  
SÉBASTIEN LAVOUÉ ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Standard Length ◽  
Posterior Margin ◽  
Mitochondrial Coi ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Upper Jaw ◽  
Gill Raker ◽  
A New Species ◽  
Pelvic Fin

The new anchovy Stolephorus babarani n. sp. is described on the basis of 26 specimens collected from Panay Island, central Philippines. The new species closely resembles Stolephorus bataviensis Hardenberg 1933 and Stolephorus baweanensis Hardenberg 1933, all these species having a long upper jaw (posterior tip extending beyond posterior margin of preopercle), and numerous dusky spots on the suborbital area (in adults), snout and lower jaw tip. However, the new species differs from S. bataviensis by usually having the posterior tip of the depressed pelvic fin not reaching to vertical through the dorsal-fin origin (vs. extending beyond vertical through dorsal-fin origin), a shorter head (23.9–25.5% of standard length vs. 25.3–28.0%), and a greater distance between the dorsal-fin origin and pectoral-fin insertion (D–P1; 133.9–151.8% of head length vs. 109.9–136.3%). Stolephorus babarani is distinguished from S. baweanensis by having a shorter snout (3.6–3.9% of standard length vs. 3.8–4.6%). Moreover, the new species can be distinguished from S. bataviensis and S. baweanensis by higher gill raker counts on the first and second gill arches (16–18 + 21–23 and 10–13 + 18–21, respectively, vs. 14–17 + 19–22 and 9–12 + 17–20 in S. bataviensis and 14–17 + 19–22 and 9–12 + 17–21 in S. baweanensis). Stolephorus babarani is separated by 5.3% and 10.7% mean p-distances in the mitochondrial COI from S. baweanensis and S. bataviensis, respectively. 

A new deepwater gurnard of the genus Pterygotrigla (Scorpaeniformes: Triglidae) from the southwestern Indian Ocean

Zootaxa ◽  
2019 ◽  
Vol 4706 (1) ◽  
pp. 189-200
Author(s):  
TAKUJI YATO ◽  
ELAINE HEEMSTRA
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Dorsal Surface ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Black Blotch ◽  
Opercular Spine ◽  
A New Species ◽  
Southwestern Indian Ocean

A new species of deepwater gurnard, Pterygotrigla (Otohime) madagascarensis sp. nov. is described, based on two specimens collected on the upper continental slope south of Madagascar, in the southwestern Indian Ocean. The new species belongs to the tropical Indo-Pacific subgenus Otohime in having a short rostral projection, short posttemporal spine, long opercular spine and no cleithral spine. It is most similar to P. (O.) multipunctata, and P. (O.) urashimai, in having no large blotch on the first dorsal fin, a jet-black blotch and no white ocellus on the inner pectoral-fin surface, with no scales on the breast and front of the pectoral-fin base. However, the new species differs from the latter two species by the combination of the following characters: first dorsal-fin spines 7, second dorsal-fin rays 12, dusky rays on the inner pectoral-fin surface, one row of blackish botches on second dorsal fin, and no papillae on the dorsal surface of oral cavity. A key is provided for the twelve Pterygotrigla species now in the subgenus Otohime. 

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).  

Two new species of the scorpionfish genus Trachyscorpia (Sebastidae:  Sebastolobinae) from the southern Indo–West Pacific, with comments  on the distribution of T. eschmeyeri

Zootaxa ◽  
2007 ◽  
Vol 1466 (1) ◽  
pp. 19-34 ◽  
Author(s):  
HIROYUKI MOTOMURA ◽  
PETER R. LAST ◽  
GORDON K. YEARSLEY
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Lateral Surface ◽  
The Body ◽  
Morphometric Characters ◽  
West Pacific ◽  
Two New Species ◽  
Upper Jaw ◽  
Southwestern Indian Ocean ◽  
Pelvic Fin

Two new species of the scorpionfish genus Trachyscorpia are described on the basis of 20 and 7 specimens collected from Australasia at depths of 731–1020 m and the southwestern Indian Ocean at depths of 620–1080 m respectively. The two new species, classified into the subgenus Mesoscorpia, are distinguished from the only other member of the subgenus, T. (M.) eschmeyeri, by the following characters: the tympanic spines absent (vs. usually present in the latter), the upper-jaw lip well developed, covering the premaxillary tooth band laterally (vs. lip poorly developed, the premaxillary teeth exposed laterally), scales absent on the lateral surface of the maxilla (vs. scales present), and 4 blackish saddles on the body in preserved specimens (vs. no blackish saddles). Trachyscorpia (M.) carnomagula sp. nov. differs from T. (M.) longipedicula sp. nov. in having 57–63 scale rows in longitudinal series (vs. 50–53 in the latter). They are also distinguished by several morphometric characters, including lengths of pelvic-fin spine and soft ray, and first anal-fin spine. The subgenus Mesoscorpia is redefined. A key to the species of Trachyscorpia and comments on distribution of T. (M.) eschmeyeri are also provided.

Two new species of the genus Chelidoperca (Perciformes: Serranidae) from the Andaman Sea, eastern Indian Ocean

Zootaxa ◽  
2021 ◽  
Vol 4927 (1) ◽  
pp. 87-103
Author(s):  
PETER N. PSOMADAKIS ◽  
OFER GON ◽  
THAUNG HTUT
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Ventral Surface ◽  
Andaman Sea ◽  
Distal Margin ◽  
Black Stripe ◽  
Dorsal Fin ◽  
Proximal Half ◽  
Lower Jaw ◽  
Two New Species

Two new species of the genus Chelidoperca are described from specimens collected in 2015 and 2018 from the Andaman Sea, off the coast of Myanmar during trawl bottom surveys conducted by the R/V Dr. Fridtjof Nansen. Chelidoperca myathantuni sp. nov. is described based on 15 specimens (74.3–129.5 mm SL) from 101–185 m depth, which can be distinguished from all congeners by the following combination of characters: 3 (2 full-sized plus 1 half-sized) scale rows between lateral line and middle of spinous dorsal-fin base; 42–44 (modally 44) pored lateral-line scales; 16 pectoral-fin rays; interorbital scales extending to mid-orbit level; scales on ventral surface of lower jaw restricted to the angular (not extending onto the dentary); enlarged caniniform teeth on the upper jaw; side of body with longitudinal dashed black stripe; dorsal fin pale yellow with reddish pigment mostly restricted at base of spines and rays. Chelidoperca flavimacula sp. nov. is described based on eight specimens (49.7–70.7 mm SL) from 84–131 m depth, which can be distinguished from all congeners by the following combination of characters: 3 (2 full-sized plus 1 half-sized) scale rows between lateral line and middle of spinous dorsal-fin base; 42–45 (modally 42) pored lateral-line scales; 9–10 (modally 10) scale rows below the lateral line; 6 predorsal scales; 16–17 (modally 16) circumpeduncular scales; 5 scales rows on cheek; interorbital scales extending to mid-orbit level; anal fin with yellowish distal margin and three or four rows of bright yellow spots over its proximal half. 

Two new species of snailfishes of the genus Careproctus (Cottoidei: Liparidae) from the western North Pacific Ocean with a range extension of Careproctus brevipectoralis

Zootaxa ◽  
2021 ◽  
Vol 4951 (2) ◽  
pp. 361-371
Author(s):  
YOSHIAKI KAI ◽  
HIROMITSU ENDO ◽  
FUMIHITO TASHIRO ◽  
NAOHIDE NAKAYAMA
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
North Pacific Ocean ◽  
Congeneric Species ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Intraspecific Variations ◽  
Two New Species ◽  
Fin Rays ◽  
Pectoral Fin Rays

Three snailfish species of Careproctus (Cottoidei: Liparidae), including two new species, are described from the deep Pacific Ocean off northern Honshu Island, Japan. Careproctus cyanogladius sp. nov., collected from the depths of 2,698–3,223 m, can be distinguished from congeneric species by having the following combination of characters: vertebrae 63; dorsal-fin rays 57–58; anal-fin rays 50; principal caudal rays 7; pectoral-fin rays 29–31; pectoral fin without a notch; uppermost pectoral-fin base below a horizontal through posterior margin of maxillary; pelvic disk oval; chin pores well separated; teeth simple; pyloric caeca 6–10; body pale blue or gray when fresh. The other new species, Careproctus orri sp. nov., collected from depths of 640–808 m, can be distinguished from congeneric species by having the following combination of characters: vertebrae 58–60; dorsal-fin rays 52–53; anal-fin rays 47–49; pectoral-fin rays 34–35; pectoral fin with a distinct notch; cephalic pores 2-6-7-2, chin pores single, unpaired; gill slit extending ventrally to 5th or 6th pectoral-fin ray; teeth strongly trilobed; peritoneum dark, stomach white. In addition, one specimen of Careproctus brevipectoralis Chernova, Thiel & Eidus, 2020 was newly collected from Japan, and is redescribed here in detail with comments on intraspecific variations. 

A new species of the greeneye genus Chlorophthalmus (Teleostei: Chlorophthalmidae) from the central North Pacific

Zootaxa ◽  
2019 ◽  
Vol 4555 (3) ◽  
pp. 396
Author(s):  
KYOJI FUJIWARA ◽  
HIDETOSHI WADA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
North Pacific ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Fin Ray ◽  
Seamount Chain ◽  
Fin Length ◽  
Central North Pacific

Chlorophthalmus imperator sp. nov. (Teleostei: Chlorophthalmidae) is described on the basis of nine specimens (98.1–174.8 mm SL) from the Emperor Seamount Chain in the central North Pacific. The new species is characterized by the following combination of characters: 49–51 lateral-line scales; 6 scale rows above lateral line; 3 + 19–22 = 22–25 (modally 22) gill rakers; outermost tooth patches of lower jaw with 6–14 large thorn-shaped teeth, the tips projecting in advance of lower-jaw profile; lower-jaw symphysis with two distinct moderately-sized projections; tongue without teeth; pelvic-fin origin vertically below 4th or 5th (usually 5th) dorsal-fin ray base; head length 26.7–28.9 (mean 27.7) % SL; snout length 6.9–7.7 (7.3) % SL; horizontal orbit diameter 11.9–12.9 (12.3) % SL; upper-jaw length 11.7–13.2 (12.6) % SL; maxillary depth 3.1–3.8 (3.4) % SL; pre-dorsal-fin length 34.2–36.6 (35.3) % SL; pre-pectoral-fin length 27.3–29.8 (27.9) % SL; anus to anal-fin origin length 27.3–29.9 (28.5) % SL; pectoral-fin length 21.0–24.9 (22.7) % SL. 

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