Lower Jaw and Dentition of the Hemphillian Bear, Agriotherium (Ursidae), with the Description of a New Species

We describe a new species of Zhangixalus from southern Yunnan of China, Vietnam, and Thailand based on morphological and molecular evidence. The new species had been confused with Zhangixalus smaragdinus (Blyth, 1852) in the past. Zhangixalus pachyproctus sp. nov. can be distinguished from Z. smaragdinus morphologically by the protruding vent in adult males, large thick grey reticular mottles below the white stripe on flank, more oblique snout in profile and wider head, longer snout, greater internarial distance, larger tympanum and longer hindlimb. The new species can be distinguished from other species of Zhangixalus with green dorsum by the following combination of characters: body size larger (SVL of adult males: 74.2–83.3 mm; SVL of adult female: 102.4 mm); dorsum smooth; narrow white stripes along edge of the lower jaw, body sides, outer side of limbs and above the vent; absence of brown bands on canthus rostralis, upper eyelid and supratympanic fold; webbing between fingers and toes complete except between the first two fingers; and internal single subgular vocal sac. Phylogeny based on comparison of 16S rRNA sequences suggests that the new species is the sister taxon to Z. smaragdinus and the two species differ by 7.63% in the uncorrected pairwise distance of 16S sequences.

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Pseudobagarius eustictus, a new species of catfish from northern Laos (Siluriformes: Akysidae)

Zootaxa ◽

10.11646/zootaxa.4996.2.6 ◽

2021 ◽

Vol 4996 (2) ◽

pp. 322-330

Author(s):

HEOK HEE NG ◽

MAURICE KOTTELAT

Keyword(s):

New Species ◽

The Body ◽

Head Width ◽

Caudal Peduncle ◽

Body Depth ◽

Lower Jaw ◽

Pectoral Spine ◽

Eye Diameter ◽

Adipose Fin ◽

A New Species

Pseudobagarius eustictus, new species, is described from the Nam Heung drainage (a tributary of the Mekong River) in northern Laos. It is distinguished from congeners in having a unique combination of the following characters: a weakly-produced snout in which the upper jaw extends only slightly beyond the margin of the lower jaw when viewed ventrally, 3 tubercles on the posterior margin of the pectoral spine, eye diameter 8% HL, head width 24.1% SL, dark yellow dorsal and lateral surfaces of the head, pectoral spine lacking elongate extensions, pectoral fin reaching the pelvic-fin base when adpressed against the body, dorsolateral surfaces of body without longitudinal series of prominent tubercles, body depth at anus 13.7% SL, length of adipose-fin base 17.7% SL, caudal-peduncle depth 7.0% SL, and 33 vertebrae.

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Epinephelus fuscomarginatus (Perciformes: Epinephelidae), a new species of grouper from off the Great Barrier Reef, Australia

Zootaxa ◽

10.11646/zootaxa.4674.3.2 ◽

2019 ◽

Vol 4674 (3) ◽

pp. 329-348 ◽

Cited By ~ 1

Author(s):

JEFFREY W. JOHNSON ◽

JESSICA WORTHINGTON WILMER

Keyword(s):

New Species ◽

The Body ◽

The Sea Of Japan ◽

The East China Sea ◽

Body Depth ◽

Lower Jaw ◽

Fin Rays ◽

The Indian Ocean ◽

Body Comparison ◽

A New Species

A new species of epinephelid fish from northeastern Australia is described based on five specimens 408–564 mm SL collected by deep water demersal dropline fishing. Epinephelus fuscomarginatus sp. nov. is known from the Capricorn Channel, off the southern end of the Swain Reefs, Qld, Australia, in depths of 220–230 m. It is distinguished by a combination of dorsal-fin rays XI, 14, pectoral-fin rays 17, anal-fin rays III, 8, caudal-fin rounded, lateral-line scales 60–67, gill rakers 9–10 + 16–19 = 25–28, body depth 3.0–3.4 in SL, angle of preopercle broadly rounded, bearing 4–9 small non-prominent serrae, midlateral part of lower jaw with 2 rows of teeth, tooth patches on vomer and palatines narrow, in 2–3 and 2–4 rows, respectively, and coloration including broad dark brown margins to the soft dorsal, anal and caudal fins. There are no dark spots on the head, body, or fins at any known size and in subadults there are two faint pale brown bars radiating from the eye to the posterior margin of the opercle, and diffuse irregular brown wavy bars and blotches on the sides of the body. Comparison of the mitochondrial cytochrome c oxidase subunit 1 (CO 1) genetic marker utilised in DNA barcoding produced modest but consistent genetic divergences of 1.10% and 2.70 % between E. fuscomarginatus sp. nov. and its closest sampled congeners, E. magniscuttis and E. epistictus, respectively. Further evidence is presented to indicate that populations of E. epistictus currently recognised from the Indian Ocean east to the Indo-Australian Archipelago may be distinct from those from the Sea of Japan to the East China Sea.

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

Zootaxa ◽

10.11646/zootaxa.4718.4.5 ◽

2020 ◽

Vol 4718 (4) ◽

pp. 509-520 ◽

Cited By ~ 1

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.

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A new species of Paretroplus (Teleostei: Cichlidae: Etroplinae) from northeastern Madagascar, with a phylogeny and revised diagnosis for the P. damii clade

Zootaxa ◽

10.11646/zootaxa.2768.1.4 ◽

2011 ◽

Vol 2768 (1) ◽

pp. 55 ◽

Cited By ~ 3

Author(s):

JOHN S. SPARKS ◽

ROBERT C. SCHELLY

Keyword(s):

New Species ◽

Anterior Margin ◽

Pigmentation Pattern ◽

Anatomical Features ◽

The North ◽

Lower Jaw ◽

Posterior Field ◽

Breeding Coloration ◽

Masoala Peninsula ◽

A New Species

Paretroplus loisellei, a new species of etropline cichlid from Madagascar, is described from the middle to lower reaches of the Mahanara River, located to the north of the Masoala Peninsula in northeastern Madagascar. The new species is recovered within the “Paretroplus damii clade” on the basis of several apomorphic anatomical features, including the presence of a triangular, black or dark gray, pectoral-axil patch, chest scales that are greatly reduced in size and highly embedded, and flank scales in which the posterior field is thin and unossified. The new species is distinguished from its sister taxon, P. damii, by a more or less horizontal profile extending from the anterior margin of the lower jaw to the ventroposterior margin of the suspensorium (vs. strongly rounded and convex), horizontally oriented oral jaws with fleshy lips (vs. oblique and thin), tricuspid symphyseal teeth in the upper jaw with distinct and sharp lateral cusps, a much darker overall pigmentation pattern, and distinctive bright golden breeding coloration (vs. brick red).

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A new species of Microschemobrycon (Characiformes: Characidae) from Rio Xingu basin, Brazil

Zootaxa ◽

10.11646/zootaxa.4576.2.6 ◽

2019 ◽

Vol 4576 (2) ◽

pp. 326

Author(s):

WILLIAN M. OHARA ◽

FERNADO C. JEREP ◽

MARCEL R. CAVALLARO

Keyword(s):

New Species ◽

Lateral Line ◽

Dark Spot ◽

Ventral Margin ◽

Caudal Peduncle ◽

Dorsal Fin ◽

Dark Stripe ◽

Lower Jaw ◽

Restricted Distribution ◽

A New Species

A new species of Microschemobrycon with a restricted distribution was recently discovered in the Rio Curuá, Rio Xingu basin, Pará, Brazil. Microschemobrycon cryptogrammus new species can be promptly distinguished from all congeners by the presence of a rounded, dark, conspicuous caudal-peduncle blotch and by a subjacent dark midlateral stripe visible in life. Additionally, the new species can be distinguished from all its congeners, except M. elongatus, by the presence of a longitudinal dark stripe along the lower jaw. The new species can be distinguished from M. elongatus by presenting lateral line with 36–38 pored scales, anterior and posterior nostrils coalescend, dark chromatophores concentrated along the ventral margin of the caudal peduncle and by the presence in life of a dark spot at the base of the dorsal-fin origin.

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Description of a new species of Tilapia Smith, 1840 (Teleostei: Cichlidae) from Ghana

Zootaxa ◽

10.11646/zootaxa.2548.1.1 ◽

2010 ◽

Vol 2548 (1) ◽

pp. 1 ◽

Cited By ~ 4

Author(s):

ANDREAS R. DUNZ ◽

ULRICH K. SCHLIEWEN

Keyword(s):

New Species ◽

Lateral Line ◽

Lower Lip ◽

Dorsal Fin ◽

Lower Jaw ◽

Pharyngeal Teeth ◽

Pra River ◽

Pharyngeal Jaw ◽

Ventral Area ◽

A New Species

A new species of the genus Tilapia Smith, 1840 is described from the Pra River drainage in Ghana. Tilapia pra sp. nov. is distinguished from all Tilapia species except T. sparrmanii, T. ruweti, T. guinasana, T. baloni, T. brevimanus, T. mariae, T. cabrae and T. busumana in having bicuspid posterior pharyngeal teeth on the lower pharyngeal jaw. It differs from T. baloni and T. ruweti in having more gill rakers on the first ceratobranchial (lower) gill-arch (10–12 vs. 6–9), from T. guinasana in having a higher number of upper lateral line scales (18–22 vs. 14–17) and from T. sparrmanii in a combination of a higher number of upper lateral line scales (18–22 vs. 14–19), a shorter anal fin base (15.0–18.6% vs. 18.0–23.8% of SL) and a lower number of vertical stripes (6–7 vs. 8–9). It differs from T. mariae, T. cabrae and T. brevimanus in having robust, non-spatulate outer row jaw teeth (vs. gracile spatulate teeth) and from T. busumana in having a longer last dorsal-fin spine (16.2–21.3% vs. 11.6–14.9% of SL), and a smaller lower lip length (8.0–10.7% vs. 9.6–13.9% of SL) and lower jaw length (9.9–13.6% vs. 10.5–15.2% of SL). In addition, T. pra sp. nov. differs from T. busumana in ground coloration. T. pra sp. nov. possesses a light brown to greyish dorsum and a beige to yellow ventral area vs. a bluish-purple to blackish dorsum and darker on underside of head and body of T. busumana.

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A new species of Argillochelys (Testudines: Cryptodira: Cheloniidae) from the Ouled Abdoun phosphate basin, Morocco

BSGF - Earth Sciences Bulletin ◽

10.2113/gssgfbull.179.6.623 ◽

2008 ◽

Vol 179 (6) ◽

pp. 623-630 ◽

Cited By ~ 17

Author(s):

Haiyan Tong ◽

Ren Hirayama

Keyword(s):

New Species ◽

Anterior Part ◽

First Record ◽

Lower Tertiary ◽

Lower Jaw ◽

Orbital Margin ◽

Secondary Palate ◽

A New Species

AbstractA new species of Argillochelys (Testudines: Cryptodira: Cheloniidae), A. africana n. sp. is described on the basis of three skulls and a lower jaw from the Lower Tertiary beds of the Ouled Abdoun phosphate basin, Morocco. It differs from A. cuneiceps, A. antiqua and A. athersuchi essentially in the frontal well retracted from the orbital margin, with a broad prefrontal/postorbital contact, a more developed secondary palate, and the anterior part of the lower jaw more dorsoventrally flattened, with a wider triturating surface and a longer symphysis, without lingual ridge. This is the first record of Argillochelys from Africa.

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New species of Trachycorystes Bleeker, with comments on other species of the genus (Ostariophysi: Siluriformes: Auchenipteridae)

Neotropical Ichthyology ◽

10.1590/s1679-62252011000200004 ◽

2011 ◽

Vol 9 (2) ◽

pp. 273-279 ◽

Cited By ~ 7

Author(s):

Heraldo A. Britski ◽

Alberto Akama

Keyword(s):

New Species ◽

Equal Length ◽

Type Locality ◽

Nominal Species ◽

Caudal Fin ◽

Dorsal Fin ◽

Skull Roof ◽

Lower Jaw ◽

Gas Bladder ◽

A New Species

A new species of Trachycorystes from the rio Aripuanã, above Dardanelos and Andorinhas falls, is described. The new species is distinguished from the only other species of the genus, T. trachycorystes, by the following characteristics: jaws of equal length (vs. lower jaw prognathous in T. trachycorystes); skull roof covered by thick (vs. thin) integument; inner mental barbel very thin and short not reaching base of outer barbel (vs. extending to or beyond base of outer mental barbel); dorsal-fin spine serrated posteriorly, smooth or rough anteriorly (vs. serrated anteriorly and smooth or rough posteriorly); caudal fin shallowly forked (vs. emarginate); and gas bladder simple, without diverticula (vs. with three posterior diverticula). Comments and data on the nominal species Trachycorystes trachycorystes are provided. Trachycorystes cratensis Miranda Ribeiro, 1937, is allocated to the genus Trachelyopterus Valenciennes, 1840, and another local catfish species, Parotocinclus aripuanensis Garavello, 1988, has its type locality reassigned.

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Aphyosemion teugelsi (Cyprinodontiformes: Nothobranchiidae), a new species from a remote locality in the southern Democratic Republic of the Congo

Zootaxa ◽

10.11646/zootaxa.2724.1.4 ◽

2019 ◽

Vol 2724 (1) ◽

pp. 58 ◽

Cited By ~ 1

Author(s):

JOUKE R. VAN DER ZEE ◽

RAINER SONNENBERG

Keyword(s):

New Species ◽

River Basin ◽

Democratic Republic ◽

Distribution Area ◽

Dorsal Fin ◽

Lower Jaw ◽

Large Head ◽

Anterior Position ◽

Republic Of The Congo ◽

A New Species

Aphyosemion teugelsi is described from specimens collected in a small creek in the upper Wamba River basin in the southwest of the Democratic Republic of the Congo not far from the Angolan border. This is ~400 km outside the known distribution area of the genus. It is distinguished from all other members of the genus Aphyosemion by the combination of broad black margins on all fins in males, a robust lower jaw, a more convex back, a large head with large eyes, a more anterior position of the dorsal fin relative to anal fin, and absence of extensions on the upper and lower caudal fin.

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