scholarly journals Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species

ZooKeys ◽  
2020 ◽  
Vol 923 ◽  
pp. 15-32
Author(s):  
Qing-Hua Chen ◽  
Wen-Jian Chen ◽  
Xiao-Zhuang Zheng ◽  
Zhao-Liang Guo
Keyword(s):  
New Species ◽  
Limited Range ◽  
The Body ◽  
Molecular Characteristics ◽  
Small Stream ◽  
Interspecific Divergence ◽  
On This Island ◽  
Coloration Pattern ◽  
Dark Blue ◽  
A New Species

A faunistic and ecological survey was conducted to document the diversity of freshwater atyid shrimps of Dawanshan Island. Two species of Caridina that occur on this island were documented and discussed. One of these, Caridina tetrazonasp. nov. is described and illustrated as new to science. It can be easily distinguished from its congeners based on a combination of characters, which includes a short rostrum, the shape of the endopod of the male first pleopod, the segmental ratios of antennular peduncle and third maxilliped, the slender scaphocerite, and the absence of a median projection on the posterior margin. Live individuals of the new species display a unique coloration pattern with four dark blue transverse bands on the body, and can be easily recognized in the field. So far, despite considerable surveying efforts made on neighboring islands, this species has only been found from a small stream on Dawanshan Island, which suggests that it may have a very limited range, probably endemic to Dawanshan Island. Molecular characteristics of the mitochondrial cytochrome c oxidase subunit I (COI) demonstrate that this species shows sufficient interspecific divergence from its congeners, including C. serrata Stimpson, 1860, which was found in four streams on Dawanshan Island, and has been previously reported on the neighboring islands of Hong Kong, Dong’ao, Wailingding, and Guishan.

scholarly journals A new singular species of Croscherichia Pardo Alcaide, 1950 (Coleoptera, Meloidae, Mylabrini) from arid zones of eastern Morocco

ZooKeys ◽  
2019 ◽  
Vol 885 ◽  
pp. 27-50 ◽  
Author(s):  
José L. Ruiz ◽  
Alexandre François ◽  
Mario García-París
Keyword(s):  
New Species ◽  
Late Summer ◽  
The Body ◽  
Arid Zones ◽  
Coloration Pattern ◽  
Pattern Shape ◽  
Eastern Morocco ◽  
A New Species ◽  
Blister Beetle ◽  
Reddish Orange

A new species of blister beetle (Coleoptera, Meloidae, Mylabrini), Croscherichia armass Ruiz, François & García-París, sp. nov., is described from the arid steppes of eastern Morocco (Missour, Boulemane Province). The new species presents traits shared with both Croscherichia and desert species of the genus Ammabris, making it morphologically singular. Conspicuous external similarities (coloration pattern, shape of the mandibles, setation) between C. armasssp. nov. and Ammabris allow the two to be easily confused. However, C. armasssp. nov. can be readily distinguished from all other Croscherichia species by the following traits: reddish-orange legs with dark tarsi; relatively short black antennae with the proximal-most three to four antennomeres of each antenna having a reddish-brown coloration; dense and silvery body setation that lies over most of the body integument; straight and pointed outer mandible margins that protrude from the labrum; a mesosternum with an angulate anterior margin; a short, subcylindrical, and weakly spatulate external metatibial spur that is truncated obliquely at the apex. Croscherichia armasssp. nov. is only known from three localities in the arid Hammada steppes, which are located within the Quaternary alluvial plains of the Muluya river valley. Live specimens of C. armasssp. nov. were found in flight and actively feeding on Atriplex halimus (Chenopodiaceae) flowers at the end of summer (mid-September). The phenology of C. armasssp. nov. is exceptional as no other Mylabrini species known from eastern areas of Morocco are active in late summer.

A new species of Eunice Cuvier, 1817 (Polychaeta: Eunicidae) from the slope of the Desventuradas Islands and seamounts of the Nazca Ridge, southeastern Pacific Ocean

Zootaxa ◽  
2020 ◽  
Vol 4860 (2) ◽  
pp. 211-226
Author(s):  
OSCAR FELIPE DÍAZ-DÍAZ ◽  
NICOLÁS ROZBACZYLO ◽  
JAVIER SELLANES ◽  
JAN M. TAPIA-GUERRA
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
The Body ◽  
Dead Coral ◽  
Coral Rubble ◽  
Body Segments ◽  
Southeastern Pacific ◽  
Coloration Pattern ◽  
Nazca Ridge ◽  
A New Species

A new species of Eunicidae, Eunice decolorhami sp. n., from the southeastern Pacific Ocean, is described. The species was collected at the slope of the Desventuradas Islands (San Félix and San Ambrosio) and in three nearby seamounts of the Nazca Ridge, in dead coral rubble bottoms from 180 to 340 m depth and inhabiting inside parchment-like branched tubes. Eunice decolorhami sp. n. can be distinguished from other species of the genus, mainly by the coloration pattern of the subacicular hooded hooks along the body segments, the beginning of the subacicular hooded hooks, the beginning of the branchiae, the maximum number of branchial filaments, and the maxillary formula. A key for the seven Eunice species recorded off the coast of Chile and Peru, including the new species described herein, is provided. 

scholarly journals A new Felimare (Mollusca: Heterobranchia: Nudibranchia) of the Atlantic blue chromodorid chromatic group from Cape Verde

2017 ◽  
Vol 81 (3) ◽  
pp. 387 ◽  
Author(s):  
Deneb Ortigosa ◽  
Marta Pola ◽  
Juan Lucas Cervera
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Cape Verde ◽  
The Body ◽  
Mitochondrial Cytochrome ◽  
Blue Colour ◽  
Histone 3 ◽  
Nuclear Histone ◽  
Dark Blue ◽  
A New Species

A new species of the chromodorid genus Felimare (Gastropoda: Heterobranchia) of the Atlantic blue chromatic group is described using material from Cape Verde (eastern Atlantic). Felimare aurantimaculata n. sp. was described based on morphological characters, as well as a molecular phylogeny using two mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) and one nuclear (histone-3) markers. Felimare aurantimaculata n. sp. is characterized by having a ground of dark blue colour with many orange polka dots over the body, dark blue rhinophores and branchial leaves, and very large and not clustered mantle dermal formations (MDFs) at the edge of the mantle, totally absent in the anterior area facing the rhinophores.

scholarly journals The genus Macrobrachium (Crustacea, Caridea, Palaemonidae) with the description of a new species from the Zaomu Mountain Forest Park, Guangdong Province, China

ZooKeys ◽  
2019 ◽  
Vol 866 ◽  
pp. 65-83 ◽  
Author(s):  
Xiao-Zhuang Zheng ◽  
Wen-Jian Chen ◽  
Zhao-Liang Guo
Keyword(s):  
New Species ◽  
Current Knowledge ◽  
Guangdong Province ◽  
Colour Pattern ◽  
Molecular Characteristics ◽  
Mountain Forest ◽  
Freshwater Biodiversity ◽  
Forest Park ◽  
Interspecific Divergence ◽  
A New Species

Evidence-based information is the foundation for addressing urgent global challenges in conservation and sustainable management of the freshwater biodiversity. The present study expands current knowledge of the genus Macrobrachium in Zaomu Mountain Forest Park, Guangdong Province based on the morphology, colouration, distribution, and molecular characteristics of Macrobrachiummaculatum, M.inflatum, M.nipponense, and an undescribed new species, M.laevis. Macrobrachiumlaevissp. nov. can be distinguished from its congeners by a combination of characters, which includes the shape of rostrum, smooth carapace, and male second pereiopod. Macrobrachiumlaevissp. nov. displays striking colour pattern, which could help to distinguish this species from other congeneric species in living specimen. Furthermore, the molecular characteristics of mitochondrial cytochrome c oxidase subunit I (COI) showed that this species has a sufficient interspecific divergence from its congeners.

A new species of Pachyurus Agassiz 1831 (Teleostei: Perciformes: Sciaenidae) from the Río Napo basin, Eastern Ecuador

Zootaxa ◽  
2002 ◽  
Vol 38 (1) ◽  
pp. 1 ◽  
Author(s):  
LILIAN CASATTI ◽  
NING LABBISH CHAO
Keyword(s):  
New Species ◽  
Lateral Surface ◽  
The Body ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Longitudinal Stripe ◽  
Dorsal Fin ◽  
Coloration Pattern ◽  
A New Species

A new species of Neotropical freshwater sciaenid, Pachyurus stewarti, is described from the Río Napo basin, Ecuador. The new species is readily distinguishable from its congeners by having a unique coloration pattern of about twelve brownish vertical oval blotches and bars on the lateral surface of the body from the opercle to the caudal peduncle, and a longitudinal stripe which starts below the soft dorsal-fin base and extends along the mid-line of the caudal peduncle to the base of the caudal fin.

A new species of the Liolaemus darwinii group (Iguania: Liolaemidae) from Catamarca Province, Argentina

Zootaxa ◽  
2006 ◽  
Vol 1317 (1) ◽  
pp. 21 ◽  
Author(s):  
CRISTIAN SIMÓN ABDALA ◽  
JUAN MANUEL DÍAZ GÓMEZ
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
The Body ◽  
Coloration Pattern ◽  
Catamarca Province ◽  
A New Species

We provide the description for a new species from Catamarca province, Argentina that belongs to the Liolaemus darwinii group. The new species was previously considered as a population of L. ornatus, but it can be distinguished from that species mainly because of differences on coloration pattern, and its geographic distribution, which is disjunct from the populations of L. ornatus. The new species is characterized for having males with a dorsal background coloration of light brown to ferrous red, the head darker than the rest of the body, paravertebral markings rounded and never in contact, dorsolateral strips lightly marked, small dark brown spots on the throat, and a belly that is white or light red.

scholarly journals Epinephelus tankahkeei, a new species of grouper (Teleostei, Perciformes, Epinephelidae) from the South China Sea

ZooKeys ◽  
2020 ◽  
Vol 933 ◽  
pp. 125-137
Author(s):  
Haohao Wu ◽  
Meng Qu ◽  
Hungdu Lin ◽  
Wei Tang ◽  
Shaoxiong Ding
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Distinct Species ◽  
The South China Sea ◽  
The Body ◽  
Molecular Characteristics ◽  
The South ◽  
China Sea ◽  
A New Species

A new species of grouper, Epinephelus tankahkeeisp. nov. is described from the South China Sea based on examination of morphological and molecular characteristics. This new species has been treated as, and is similar to, its congener E. chlorostigma. Epinephelus tankahkeeisp. nov. can be distinguished from E. chlorostigma by the following combination of characters: a convex anal fin; closer dark spots on the body; a lack of dark spots on the abdomen, cheek, and pectoral fin; the absence of a clear posterior white margin on the caudal fin. Molecular analyses of the mitochondrial COI sequence variation, genetic distances, and a phylogeny, all highly support E. tankahkeeisp. nov. as a distinct species. A key to E. tankahkeeisp. nov. and its most closely related species is provided.

scholarly journals A new species of Crenicichla (Perciformes: Cichlidae) from the Ventuari River, Upper Orinoco River Basin, Amazonas State, Venezuela

Zootaxa ◽  
2008 ◽  
Vol 1856 (1) ◽  
pp. 33 ◽  
Author(s):  
CARMEN G. MONTAÑA ◽  
HERNÁN LÓPEZ-FERNÁNDEZ ◽  
DONALD C. TAPHORN
Keyword(s):  
New Species ◽  
River Basin ◽  
The Body ◽  
Orinoco River ◽  
Coloration Pattern ◽  
Amazonas State ◽  
A New Species

We describe a new species of the genus Crenicichla Heckel, 1840, from the Ventuari River, a tributary of the Orinoco River in southern Venezuela. Crenicichla zebrina is distinguished from all other species in the genus by its unique coloration pattern, including the combination of a large, dark, vertically oriented, more or less oval-shaped humeral spot, and thin, dark bars, separated by narrow, vertical, yellowish bars extending between the dorsal and anal fin base on the caudal half of the body. Crenicichla zebrina is included in the putative C. acutirostris group (9 species) and represents the only species in the group known to date from the Orinoco basin.

A New Species of Turnera (Turneraceae, Passifloraceae s. l.) from the Brazilian Cerrado

2020 ◽  
Vol 45 (4) ◽  
pp. 826-832
Author(s):  
Lamarck Rocha ◽  
Maria Mercedes Arbo
Keyword(s):  
New Species ◽  
Brazilian Cerrado ◽  
Distribution Map ◽  
Sem Images ◽  
Dark Blue ◽  
A New Species

Abstract—Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.

Steinernema borjomiense n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Georgia

Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 653-669 ◽  
Author(s):  
Oleg Gorgadze ◽  
Elena Fanelli ◽  
Manana Lortkhipanidze ◽  
Alberto Troccoli ◽  
Medea Burjanadze ◽  
...  
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Entomopathogenic Nematode ◽  
Phylogenetic Analyses ◽  
Tail Length ◽  
Morphological Characters ◽  
18S Rrna Gene ◽  
The Body ◽  
Rrna Gene ◽  
A New Species

Summary A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) μm, distance between the head and excretory pore = 72 (62-80) μm, pharynx length = 132 (122-142) μm, tail length = 70 (60-80) μm, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.

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