Rhinobatos austini n. sp., a new species of guitarfish (Rhinopristiformes: Rhinobatidae) from the Southwestern Indian Ocean

Zootaxa ◽  
2017 ◽  
Vol 4276 (2) ◽  
pp. 204 ◽  
Author(s):  
DAVID A. EBERT ◽  
OFER GON
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Depth Distribution ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Colour Pattern ◽  
Coastal Species ◽  
Kwazulu Natal ◽  
A New Species ◽  
Southwestern Indian Ocean

Rhinobatos austini sp. n. is described from the southwestern Indian Ocean based on four specimens collected from the KwaZulu-Natal Province, South Africa and from Mozambique. The new species, with one exception, can be distinguished from all other members of this genus by a prominent teardrop-shaped dark blotch on the ventral surface of its snout. Its closest congener, R. holcorhynchus, also has a prominent teardrop-shaped blotch on its snout, but the new species differs from it by a lack of prominent thorns and tubercles on it dorsal disc surface and a very striking dorsal surface colour pattern of paired spots, some forming darker transverse bands across its back. Geographically, these two species broadly overlap, but R. austini appears to be a shallow, more coastal species (<1–107 m) compared to R. holcorhynchus that has a mostly offshore (75–254 m) depth distribution. 

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. 

Review of the fish-parasitic genus Cymothoa Fabricius, 1793 (Isopoda, Cymothoidae, Crustacea) from the southwestern Indian Ocean, including a new species from South Africa

Zootaxa ◽  
2013 ◽  
Vol 3640 (2) ◽  
pp. 152-176 ◽  
Author(s):  
KERRY A. HADFIELD ◽  
NIEL L. BRUCE ◽  
NICO J. SMIT
Keyword(s):  
South Africa ◽  
New Species ◽  
Indian Ocean ◽  
Type Material ◽  
Nomen Dubium ◽  
Kwazulu Natal ◽  
A New Species ◽  
Southwestern Indian Ocean

The genus Cymothoa Fabricius, 1793 is revised for southwestern Indian Ocean waters. Cymothoa borbonica Schioedte & Meinert, 1884 and C. eremita Brünnich, 1783 are redescribed. Cymothoa rotundifrons Haller, 1880, from Mauritius lacks type material and the host is unknown, therefore it is here relegated to nomen dubium. Cymothoa sodwana sp. nov., from Trachinotus botla (Carangidae), collected from the Kwazulu-Natal coast of South Africa, is described and is distinguished by the large, ovoid, hunched body with rugose dorsal surfaces; the anterolateral angles of pereonite 1 are narrow and rounded reaching half the length of the cephalon; the ischium of pereopod 7 has a large protrusion and pereonite 7 which laterally overlaps the pleon margins, extending posteriorly to the pleotelson.

New species of Pycnogonum (Pycnogonida: Pycnogonidae) from Green Island, Taiwan, with an additional note on the holotype of P. spatium

Zootaxa ◽  
2020 ◽  
Vol 4750 (1) ◽  
pp. 122-130
Author(s):  
DAMIN LEE ◽  
WON KIM
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Type Locality ◽  
Present Species ◽  
Shallow Waters ◽  
University Museum ◽  
Green Island ◽  
A New Species ◽  
Dorsal Tubercle

We report the discovery of a new species of the genus Pycnogonum Brünnich, 1764 found in the shallow waters of Green Island, Taiwan. Pycnogonum (Nulloviger) granulatum sp. nov. is characterized by the presence of the granular integument, a dorsal tubercle on the proboscis, the transverse ridges on the dorsal surface of the trunk, and the spines on the ventral surface of the tibia, tarsus, and propodus having cleft tips. Because the male gonopores are present and ovigers are absent, the present species belongs to the subgenus Nulloviger. The present species has been compared with P. (N.) moolenbeeki Stock, 1992, P. (N.) lobipes Stock, 1991, P. (N.) tuberculatum Clark, 1963, P. nodulosum Döhrn, 1881, and P. spatium Takahashi, Dick & Mawatari, 2007. Among the congeners, P. spatium is geographically the closest congener, of which type locality is Amami Island, Japan. The holotype of P. spatium was loaned from Hokkaido University Museum (ICHUM) and re–examined. To determine the exact gender of the holotype of P. spatium, additional investigations of the coxal pellicula and gonopores are required. 

Synodus cresseyi Prokofiev, 2008, an unnecessary replacement for S. macrocephalus Cressey, 1981, and a description of a new species from the Western Indian Ocean (Teleostei: Synodontidae)

Zootaxa ◽  
2018 ◽  
Vol 2419 (1) ◽  
pp. 63 ◽  
Author(s):  
HSUAN-CHING HO ◽  
ARTÉM M. PROKOFIEV ◽  
KWANG-TSAO SHAO
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Western Indian Ocean ◽  
Ventral Surface ◽  
Zoological Nomenclature ◽  
Posterior Teeth ◽  
Posterior Flap ◽  
Pectoral Fins ◽  
Posterior Nostril ◽  
A New Species

Synodus cresseyi Prokofiev, 2008 is an unnecessary replacement name for S. macrocephalus Cressey, 1981 according to Article 23.9.5 of the International Code of Zoological Nomenclature. The material used for the description of S. cresseyi includes two species. One of them represents a new species which differs from its congeners in the following combination of characters: anterior palatine teeth not longer than posterior teeth; preopercle scaled posterior to corner of mouth; membranous posterior flap of anterior nostril slender, with a pointed tip, reaching to above posterior nostril when laid back; pectoral fins reaching a line connecting dorsal and pelvic fin origins; pelvic process broad; color in alcohol without any marking, deep brown on dorsal surface restricted to central two-third of head and body, about two scale rows above lateral line, lateral and ventral surface uniformly silver white without blotches.

A new species of Nemipterus (Pisces: Nemipteridae) from the Western Indian Ocean

Zootaxa ◽  
2013 ◽  
Vol 3630 (1) ◽  
pp. 191-197
Author(s):  
BARRY C. RUSSELL ◽  
DENIS TWEDDLE
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Narrow Band ◽  
Western Indian Ocean ◽  
Colour Pattern ◽  
Upper Lip ◽  
Lower Margin ◽  
Lower Lip ◽  
Posterior Nostril ◽  
A New Species

A new species of threadfin bream, Nemipterus flavomandibularis, from the Western Indian Ocean is described and figured. The new species appears most closely related to N. bipunctatus (Valenciennes), but differs principally in colour pattern: N. flavomandibularis is distinct from N. bipunctatus in having two yellow bands on the snout, the upper lip narrowly edged with yellow; and lower lip and chin beneath lip yellow, this colour extending as a narrow band posteriorly to lower margin of opercle. Also, in N. flavomandibularus the scale rows below the lateral line are more or less horizontal (versus distinctly ascending anteriorly in N. bipunctatus), and the maxillary reaches to between level of posterior nostril and anterior margin of eye (versus reaching to below the anterior half of the eye in N. bipunctatus).

scholarly journals A new species of Gracixalus (Anura, Rhacophoridae) from Yunnan, China

ZooKeys ◽  
2019 ◽  
Vol 851 ◽  
pp. 91-111 ◽  
Author(s):  
Guohua Yu ◽  
Hong Hui ◽  
Jian Wang ◽  
Dingqi Rao ◽  
Zhengjun Wu ◽  
...  
Keyword(s):  
New Species ◽  
Lateral Surface ◽  
Small Body ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Temporal Region ◽  
Adult Males ◽  
Region Versus ◽  
Black Blotch ◽  
A New Species

A new species of the genusGracixalus,Gracixalusyunnanensissp. n., is described based on a series of specimens collected from southwestern and southern Yunnan, China. This species is distinguished from all other known congeners by a combination of the following characters: relatively small body size in adult males (SVL 26.0–34.2 mm); dorsal surface yellow brown or red brown; distinctive conical asperities on dorsum; males with an external subgular vocal sac and linea masculina; throat, chest, and belly nearly immaculate; venter surface orangish with yellow spots, semi-transparent; snout rounded; supratympanic fold distinct; iris bronze; lack of white patch on temporal region; tibiotarsal projection absent; sides of body nearly smooth with no black blotch; finger webbing rudimentary; and toe webbing formula I1.5–2II1.5–2.7III.5–3IV2.5–1.5V. Genetically, the new species diverges from its congeners by 2.2%–14.1% (uncorrected p-distance) and is closest toG.guangdongensis. However, the new species can morphologically be separated fromG.guangdongensisby distinctive conical tubercles on dorsum (versus absent), lateral surface nearly smooth with no black blotches on ventrolateral region (versus lateral surface rough, scattered with tubercles and black blotches on ventrolateral region), snout rounded (versus triangularly pointed), iris bronze (versus iris brown), and ventral surface orangish (versus throat and chest creamy white and belly light brown).

A new species of short-fingered geckos Stenodactylus (Squamata, Geckonidae) from South Iran with taxonomic notes on validity of the genus Trigonodactylus Hass, 1957

Zootaxa ◽  
2018 ◽  
Vol 4457 (1) ◽  
pp. 93 ◽  
Author(s):  
ROMAN A. NAZAROV ◽  
DANIEL A. MELNIKOV ◽  
MEHDI RADJABIZADEH ◽  
NIKOLAY A. POYARKOV
Keyword(s):  
New Species ◽  
Sand Dunes ◽  
Morphological Characteristics ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Color Pattern ◽  
Khuzestan Province ◽  
Longitudinal Line ◽  
Southwestern Iran ◽  
A New Species

In the present study we provide evidence for the validity of the genus Trigonodactylus Hass, 1957, improve the diagnosis for this genus and describe a new species that belongs to it—Trigonodactylus persicus sp. nov., from the sand dunes in Khuzestan Province, southwestern Iran. The new species is closely related to Trigonodactylus [Stenodactylus] arabicus sensu Hass, and can be distinguished by the following morphological characteristics: small size, maximum SVL 34 mm; SVL/TailL—approximately 1:1; ventral scales roundish, weakly keeled, 54–61 longitudinal rows at midbody and 190–25 along midbody. No enlarged postmentals. Fingers and toes slightly flattened dorso-ventrally. Lateral edge of digits fringed by series of projecting triangular scales. No web between digits. No preanal and femoral pores. Dorsal color pattern formed by thin, dark, irregular vermicular patches and spots. Sometimes these dark dorsal patterns blend with each other and form transverse bands. There is a narrow, dark, longitudinal line between forelimbs and hindlimbs on lateral sides. Dark, well developed ʌ-shaped marking on snout, which continues behind orbit on tympanum region, approaches the upper ear opening and ends on the pectoral arch. Labial scales white, in some cases with grey-brown dots. Dorsal surfaces of limbs and digits with irregular dark bands. Dorsal surface of tail with 8–10 wide, dark brown bands with irregular margins, same size as alternating light bands. Ventral surface of body and limbs white, tail with dark spots that become more distinct posteriorly.

A new species of Limnonectes (Amphibia: Anura: Dicroglossidae) from Vietnam

Zootaxa ◽  
2020 ◽  
Vol 4894 (3) ◽  
pp. 387-402
Author(s):  
CUONG THE PHAM ◽  
DANG TRONG DO ◽  
MINH DUC LE ◽  
HANH THI NGO ◽  
LUAN THANH NGUYEN ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Diagnostic Characters ◽  
South Central ◽  
Central Vietnam ◽  
Medial Edge ◽  
A New Species

A new species of Limnonectes from Phu Yen Province, South-central Vietnam is described based on morphological and molecular differences. Morphologically, the new species is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: SVL 49.8–77.9 mm in males, 40.8–61.8 mm in females; males with moderately enlarged head (HL/SVL 0.47, HW/SVL 0.48); head slightly broader than long (HL/HW 0.97 in males, 0.95 in females); vomerine teeth present; external vocal sacs absent; rostral length short (RL/SVL 0.15); tympanum invisible; dorsal surface of head, body and flanks with ridges and tubercles; dorsal surface of tibia and foot distinctly tuberculate, covered with moderately dense, small, low tubercles; supratympanic fold present; dorsolateral fold absent; Finger I with nuptial pad, composed of minute spines on dorsal surface and medial edge in males; toes webbed to distal of terminal phalanx, webbing formula I0–0II0–0III0–0IV0-–0V0; in life, dorsum yellowish brown with dark brown markings; ventral surface white with brown markings. In phylogenetic analyses, the new species from Vietnam and Limnonectes fastigatus as well as L. kiziriani form a clade, which is sister to L. fragilis from China, although the nodal support values for the set of relationships are insignificant from all analyses. 

A new species of Limnonectes (Amphibia: Anura: Dicroglossidae) from Vietnam

Zootaxa ◽  
2017 ◽  
Vol 4269 (4) ◽  
pp. 545
Author(s):  
CUONG THE PHAM ◽  
MINH DUC LE ◽  
TAO THIEN NGUYEN ◽  
THOMAS ZIEGLER ◽  
ZHENG JUN WU ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Sister Taxon ◽  
Diagnostic Characters ◽  
Large Size ◽  
Hind Limbs ◽  
Statistical Support ◽  
A New Species

A new species of Limnonectes is described from northeastern Vietnam based on morphological and molecular differences. Morphologically, the new species is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: Large size (SVL 50.1–68.9 in males, 45.5–63.0 mm in females); males with moderately enlarged head (HL/SVL 0.48), head longer than wide; vomerine teeth present; external vocal sacs absent; rostral length short (RL/SVL 0.16 in males, 0.15 in females); tympanum distinct (TD/ED 0.63 in males, 0.60 in females); dorsal surface of head, body and flanks with flattened tubercles; dorsal surface of tibia possessing small tubercles; supratympanic fold present; dorsolateral fold absent; webbing formula I0–0II0–1/3III0–1/3IV1/2–0V; in life, dorsum yellowish brown with a dark brown marking; throat and chest white with dark brown marking; ventral surface of fore and hind limbs as well as belly white. In phylogenetic analyses, the new species is placed as the sister taxon to Limnonectes fujianensis with strong statistical support in all analyses.

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