scholarly journals Two new species of Metacyclops Kiefer, 1927 (Copepoda, Cyclopoida) from Thailand and an up-to-date key to the species recorded in Asia

2022 ◽  
Vol 787 ◽  
pp. 146-181
Author(s):  
Sujeephon Athibai ◽  
Koraon Wongkamhaeng ◽  
Chaichat Boonyanusith
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
The Body ◽  
Width Ratio ◽  
Caudal Ramus ◽  
Southern Thailand ◽  
Two New Species ◽  
Length Width ◽  
Surface Length ◽  
Swimming Leg

Metacyclops sakaeratensis sp. nov. and M. brancelji sp. nov. are described as being present in the mountainous areas of Northeastern and Southern Thailand, respectively. Two new species resemble M. woni in both sexes, but they are easily distinguished from their Cambodian relative by having: 1) transverse suture on the dorsal surface of the genital double-somite, 2) serrated hyaline frill on the posterior margin of third pedigerous somite, 3) different length / width ratio of caudal ramus, and 4) a row of spinule on caudal surface of intercoxal sclerite of the third swimming legs. The significant differences between M. sakaeratensis sp. nov. and M. brancelji sp. nov. are present in both sexes, including the body size, integumental ornamentation of the body surface, length / width ratio of caudal ramus, armature of the fifth swimming leg, and the male sixth swimming leg. In addition, an up-to-date key to the female of all fifteen species of Metacyclops recorded in Asia is provided.

Two new land planarian species (Platyhelminthes: Tricladida: Geoplanidae) from protected areas in southern Brazil

Zootaxa ◽  
2019 ◽  
Vol 4664 (4) ◽  
pp. 535-550 ◽  
Author(s):  
PITER KEHOMA BOLL ◽  
SILVANA VARGAS DO AMARAL ◽  
ANA MARIA LEAL-ZANCHET
Keyword(s):  
New Species ◽  
Protected Areas ◽  
National Park ◽  
Ejaculatory Duct ◽  
Dorsal Surface ◽  
The Body ◽  
Southern Brazil ◽  
Moist Forest ◽  
Two New Species ◽  
Land Planarian

We describe two new species of Neotropical land planarians found in protected areas of the Atlantic Forest in southern Brazil. Cratera obsidiana Amaral, Boll & Leal-Zanchet, sp. nov., found in the State Park of Turvo, is the first species of the genus Cratera described from an area of deciduous seasonal forest. It can be distinguished from its congeners by the uniformly black dorsal color and the prostatic vesicle with proximal portion laterally expanded and directed upward. Luteostriata subtilis Boll, Amaral & Leal-Zanchet, sp. nov., found in the National Park of Aparados da Serra, in an area covered by Araucaria moist forest, is distinguished from its congeners by only two conspicuous longitudinal stripes on the dorsal surface of the body and a large fold in the male atrium below the opening of the ejaculatory duct. We also provide an updated key for species of Cratera and the first key for species of Luteostriata. 

A new stygobiotic species of Diacyclops Kiefer, 1927 (Copepoda, Cyclopidae) from caves in New Mexico, United States

Crustaceana ◽  
2013 ◽  
Vol 86 (9) ◽  
pp. 1155-1177
Author(s):  
Eduardo Suárez-Morales ◽  
Nancy F. Mercado-Salas ◽  
Rachel Barlow
Keyword(s):  
New Species ◽  
New Mexico ◽  
Local Population ◽  
Dorsal Surface ◽  
Width Ratio ◽  
Cave System ◽  
Length Width ◽  
Caudal Rami ◽  
A New Species ◽  
Group 1

A new species of the freshwater cyclopine copepod genus Diacyclops is described from a North American cave system in SE New Mexico, U.S.A. The new species, D. nikolasarburni n. sp., differs from its congeners by its having of a unique combination of characters including: 17-segmented antennules, three-segmented rami in legs 1-4, a basic 2333 spinal formula with a highly variable pattern, naked inner margin of caudal rami, but dorsal surface with spinules, subequal terminal spines of leg 4 endopod, and inner spine of fifth leg about as long as bearing segment. This species has also a variable length/width ratio of the caudal ramus (4.6-6.0, average 5.0); the lateral caudal seta is inserted on the distal one-quarter of ramus. The 2333 spinal formula was dominant (55%) in the population but other patterns were also present. The new species belongs to Group 1 species of Diacyclops (sensu Reid & Strayer, 1994). The local population of this stygobiotic species probably resulted from radiation-stranding processes of epigean forms of widely distributed Diacyclops and is probably endemic to this cave system.

Two new species of the genus Galumna (Acari: Oribatida: Galumnidae) from China

2018 ◽  
Vol 23 (4) ◽  
pp. 603
Author(s):  
Wenqin Liang ◽  
Maofa Yang ◽  
Guoru Ren
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Body Length ◽  
The Body ◽  
Two New Species ◽  
Surface Length ◽  
Porose Area ◽  
Median Pore

Two new species of Galumna Heyden, 1826, Galumna (Galumna) wuzhishanensis sp. nov. and Galumna (Galumna) longisensilla sp. nov., are described from soil and leaf litter samples in Hainan and Guizhou Provinces, China. Adults of Galumna (Galumna) wuzhishanensis sp. nov., is morphologically most similar to Galumna (Galumna) acutirostrum Ermilov, 2010, however it differs from the latter by the body length and pattern of surface, length of interlamellar setae, location of im and the absence of median pore and postanal porose area. Adults of Galumna (Galumna) longisensilla sp. nov., is morphologically most similar to Galumna (Galumna) calva Starý, 1997, but differs by the shape of Aa and location of gla, size of A3 and the presence of postanal porose area.   

Two new species of Elaphoidella (Copepoda, Harpacticoida) from caves in southern Thailand and a key to the species of Southeast Asia

Zootaxa ◽  
2017 ◽  
Vol 4282 (3) ◽  
pp. 501 ◽  
Author(s):  
SANTI WATIROYRAM ◽  
LA-ORSRI SANOAMUANG ◽  
ANTON BRANCELJ
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Lower Number ◽  
Identification Key ◽  
Male And Female ◽  
Caudal Ramus ◽  
Asian Species ◽  
Group I ◽  
Southern Thailand ◽  
Two New Species

Elaphoidella paraaffinis sp. nov. and E. ligorae sp. nov. are described from Phra Kayang and Khao Plu caves respectively in southern Thailand. They both belong to Group I sensu Lang (1948). Elaphoidella paraaffinis and E. ligorae are similar to E. affinis Chappuis, 1933 and E. cabezasi Petkovski, 1982 respectively. Elaphoidella paraaffinis differs from E. affinis by (1) its larger sized setae on Exp P5, (2) the absence of an inner seta on Endp P1–P4, (3) fewer setae on P3 Endp-2, and (4) a larger number of ventral spinules on its anal segment. Elaphoidella ligorae differs from E. cabezasi by (1) its serrated posterior margins of urosomites, (2) the presence of strong inner spinules on its caudal ramus, (3) larger sized and a lower number of ventral spinules on its anal segment in male and female respectively, (4) larger sized setae on P5 in female, (5) the presence of an inner seta on Endp-1 P2, and (6) a larger number of setae on Endp-2 P2 in male. An identification key to the Southeast Asian species of the genus Elaphoidella Chappuis, 1929 is provided. 

scholarly journals Two new species of the genus Crenicichla Heckel, 1840 from the upper rio Uruguay drainage (Perciformes: Cichlidae)

2007 ◽  
Vol 5 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Carlos A. S. de Lucena
Keyword(s):  
New Species ◽  
Species Group ◽  
The Body ◽  
The Other ◽  
Horizontal Line ◽  
Lower Edge ◽  
Middle Portion ◽  
Lateral Band ◽  
Two New Species ◽  
Vertical Bars

Two new species of the genus Crenicichla from the upper rio Uruguay basin are described, Crenicichla hadrostigma and C. empheres. Both are included in the C. missioneira species group along with C. missioneira, C. minuano, C. tendybaguassu, C. igara, and C. jurubi, all occurring in the upper and middle rio Uruguay drainage. Crenicichla hadrostigma is distinguished by the conspicuous ocellated posttemporal blotch, absence of a humeral spot and lateral band, and the presence in males of nine to 16 narrow vertical bars extending from the dorsum to a horizontal line that passes through the lower edge of pectoral axilla. Crenicichla empheres is distinguished from the other species of the missioneira-group by the presence of six to eight horizontally elongate dark blotches along the middle portion of the body, slightly below the upper lateral line, absence of a lateral band, presence in males of numerous dark and irregularly arranged spots on nape, back, and sides of body, and isognathous mouth. A key to the species from rio Uruguay basin is presented.

scholarly journals Two new species of Rhinogobius (Gobiiformes: Oxudercidae) from Palawan, Philippines, with their phylogenetic placement

Zootaxa ◽  
2021 ◽  
Vol 5068 (1) ◽  
pp. 81-98
Author(s):  
KEN MAEDA ◽  
CHUYA SHINZATO ◽  
RYO KOYANAGI ◽  
TAIGA KUNISHIMA ◽  
HIROZUMI KOBAYASHI ◽  
...  
Keyword(s):  
New Species ◽  
Common Ancestor ◽  
River System ◽  
The Body ◽  
Sulu Sea ◽  
Phylogenetic Placement ◽  
Fin Ray ◽  
Two New Species ◽  
Predorsal Scale ◽  
Palawan Island

Two new species of Rhinogobius found in streams on central part of Palawan Island, Philippines are described. The two new species, Rhinogobius estrellae and Rhinogobius tandikan share unique transverse rows of sensory papillae on the cheek with Rhinogobius similis Gill, 1859, but differ from the latter in fin ray counts, arrangement of the scales, etc. The two new species are distinguished from each other by the pectoral-fin ray count, the longitudinal- and predorsal-scale counts, and colouration of the body. Rhinogobius estrellae new species and R. tandikan new species have been found allopatrically in a stream within Malatgao River system flowing into the Sulu Sea and in the Cayulo River flowing into the South China Sea, respectively. The Malatgao River system is the southernmost habitat of the genus Rhinogobius. Rhinogobius similis had been considered as the only member of the most basal lineage of this genus, but our mitochondrial genome analysis suggested that the two new species are additional members of this lineage. They are considered to be relicts of their common ancestor with R. similis, which probably had a wider distribution.  

Laonicespecies (Polychaeta, Spionidae) from the Whittard Canyon (NE Atlantic) with descriptions of two new species

2017 ◽  
Vol 97 (5) ◽  
pp. 961-973 ◽  
Author(s):  
Andrey Sikorski ◽  
Laetitia M. Gunton ◽  
Lyudmila Pavlova
Keyword(s):  
New Species ◽  
North Atlantic ◽  
Deep Water ◽  
The Body ◽  
Identification Key ◽  
The Other ◽  
Ne Atlantic ◽  
Two New Species ◽  
Generic Groups ◽  
Number Of Segments

Four species ofLaonice(Annelida: Spionidae) were collected from the lower bathyal depths (3300–3700 m) in the Whittard Canyon, NE Atlantic. Two are herewith described as new species:Laonice whittardensissp. nov. andLaonice nataesp. nov. The other two areLaonice blakeiSikorski & Jirkov, 1988 andLaonice magnacristataMaciolek, 2000.Laonice whittardensishas genital pouches appearing from chaetiger 3, prostomium free of peristomium and bidentate hooks.Laonice nataebelongs to the subgenusAppelloefianov. with prostomium distinct from the peristomium, more than two vertical rows of capillaries in several anterior chaetigers, genital pouches present on a limited number of segments or totally absent. However, the absence of pronounced anterior widening of the body together with anterior branchiae, which are remarkably (nearly twice) longer than the notopodial postchaetal lobes, the narrow lanceolate notopodial postchaetal lobes, the pronounced pointedness of all postchaetal lobes (both notopodial and neuropodial) in the anterior half of body at least, and absence of genital pouches and the size of the body all distinguishL. nataefrom other species belonging to this subgenus. An identification key to all nine known deep-water (>400 m depth)Laonicespecies in North Atlantic is given and four previously recognized sub-generic groups are formally named:Laonice, Sarsianasubgen. nov.,Appelloefiasubgen. nov.,Norgensiasubgen. nov.

Studies on Neotropical crickets: A new Anurogryllina genus (Orthoptera: Gryllidae: Gryllinae)

Zootaxa ◽  
2021 ◽  
Vol 4985 (3) ◽  
Author(s):  
OSCAR J. CADENA-CASTAÑEDA ◽  
MARTHA CAROLINA VÁSQUEZ RODRÍGUEZ ◽  
GLORIA RAQUEL DÁVILA GONZALEZ ◽  
VÍCTOR HUGO GRANDE LÓPEZ
Keyword(s):  
New Species ◽  
New Genus ◽  
The Body ◽  
Median Lobe ◽  
Two New Species

Andeogryllus n. gen. including two new species from the inter-Andean slopes and valleys of the Magdalena and Cauca rivers of Colombia are described. This new genus is similar to Zebragryllus in their habitus, differed by not have white stripes on the body or antennae and by a modified pseudoepiphallic sclerite. The genus Atsigryllus (Atsigryllae group) is located in the subtribe Anurogryllina, highlighting the secondary reduction of the median lobe. An updated key is provided for the genera of the subtribe Anurogryllina and the species of the new genus.

Two new species of Styela (Tunicata: Ascidiacea) from the tropical West Atlantic Ocean

Zootaxa ◽  
2021 ◽  
Vol 4948 (2) ◽  
pp. 275-286
Author(s):  
RODOLFO CORRÊA DE BARROS ◽  
ROSANA MOREIRA DA ROCHA
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Shallow Water ◽  
Atlantic Coast ◽  
The Body ◽  
The South ◽  
Bocas Del Toro ◽  
Espírito Santo ◽  
Two New Species ◽  
Espirito Santo

Two new species of the genus Styela are described, with very rare characteristics in this genus: both are shallow-water and tropical, with more than two gonads in each side of the body. Styela panamensis sp. nov. is described from specimens collected in Bocas del Toro, Atlantic coast of Panama, and Styela multicarpa sp. nov. from specimens collected in Espírito Santo, Brazil and Margarita Island, Venezuela. They are probably native to the south Caribbean and S. multicarpa sp. nov. is introduced in Brazil. 

Nephtyidae (Annelida: Polychaeta) from the Sea of Marmara and Black Sea, with descriptions of two new species

Zootaxa ◽  
2021 ◽  
Vol 5060 (2) ◽  
pp. 33-64
Author(s):  
SEVGI KUŞ ◽  
GÜLEY KURT ◽  
MELIH ERTAN ÇINAR
Keyword(s):  
New Species ◽  
Body Size ◽  
Black Sea ◽  
The Body ◽  
The Black Sea ◽  
Sea Of Marmara ◽  
Marine Fauna ◽  
Black Sea Coast ◽  
Two New Species ◽  
Sea Coast

The present paper deals with the diversity of nephtyid polychaetes (Nephtyidae) from the Sea of Marmara and the Black Sea. Three species belonging to two genera (Micronephthys and Nephtys) were found in the Black Sea (coast of Turkey) and six species belonging to three genera (Inermonephtys, Micronephthys and Nephtys) were found in the Sea of Marmara. The material includes two species new to science, Inermonephtys turcica n. sp. and Nephtys sinopensis n. sp., and a species record (Nephtys kersivalensis McIntosh, 1908) new to the Sea of Marmara’s marine fauna. Nephtys sinopensis n. sp. is mainly characterized by having 1–4 geniculate chaetae in the postacicular position of the parapodia; digitiform antennae, palps, and ventral cirri at chaetiger 1 with swollen tips; small and cirriform branchiae present from chaetiger 4 to the end of the body; poorly developed parapodial prechaetal lamellae in median and posterior chaetigers and long ventral cirri along the body. Inermonephtys turcica n. sp. is mainly characterized by having cushion-like palps with digitiform tips; well developed neuropodial postchaetal lamellae; barred chaetae in preacicular position of the anterior and median parapodia; and branchiae first appearing between chaetiger 3 and 13 (depending on body size).  

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