scholarly journals Two new stygobiotic species of Horatia Bourguignat, 1887 (Hydrobiidae) from Croatia

2021 ◽  
Vol 37 ◽  
pp. 89-104
Author(s):  
Andrzej Falniowski ◽  
Jozef Grego ◽  
Aleksandra Rysiewska ◽  
Artur Osikowski ◽  
Sebastian Hofman
Keyword(s):  
New Species ◽  
Soft Part ◽  
The Body ◽  
Freshwater Snails ◽  
Terminal Part ◽  
Cave Sediments ◽  
Two New Species ◽  
Body Whorl

In this paper we describe two new species of the freshwater snails of genus Horatia. A new stygobiotic species of Horatia Bourguignat, 1887 is described from Izvor Beguša in Croatia. It occurs in sympatry with the crenobiotic H. klecakiana Bourguignat, 1887, but is morphologically and molecularly distinct. It is characterized by the terminal part of the body whorl separated from the columella, and neither eyes nor any pigment on the soft parts. It is a stygobiont gastropod, known so far only from one living specimen and several empty shells, thus its soft part morphology and anatomy remain unknown. Another new species of stygobiotic Horatia was found inside the cave Mali Rumin, its description is based solely on numerous empty shells from the cave sediments.

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).  

Two new species of montane web-footed salamanders (Plethodontidae: Bolitoglossa) from the Costa Rica-Panamá border region

Zootaxa ◽  
2009 ◽  
Vol 1981 (1) ◽  
pp. 57-68 ◽  
Author(s):  
FEDERICO BOLAÑOS ◽  
DAVID B. WAKE
Keyword(s):  
New Species ◽  
Body Size ◽  
Costa Rica ◽  
Body Wall ◽  
Species Group ◽  
The Body ◽  
Border Region ◽  
Two New Species ◽  
Adult Body ◽  
Salamander Species

Two new species of lungless salamanders (Plethodontidae) are described from high montane habitats of the border region between Costa Rica and Panamá. Bolitoglossa pygmaea and B. robinsoni are distinguished from each other and from other salamander species in this remote area by differences in adult body size, external proportions, foot webbing, tooth counts and/or external coloration. Both new species are assigned to the B. subpalmata species group, subgenus Eladinea. The miniaturized B. pygmaea is remarkable in being extensively depigmented, yet having the peritoneum and stomach area heavily pigmented and visible through the body wall.

Two new species of Pseudecheneis, rheophilic catfishes (Teleostei: Sisoridae) from Nepal

Zootaxa ◽  
2005 ◽  
Vol 1047 (1) ◽  
pp. 1 ◽  
Author(s):  
HEOK HEE NG ◽  
DAVID R. EDDS
Keyword(s):  
New Species ◽  
The Body ◽  
Unique Combination ◽  
Ganges River ◽  
Caudal Peduncle ◽  
Fin Ray ◽  
Two New Species ◽  
Eye Diameter ◽  
Adipose Fin ◽  
The Ganges

Two new species of sisorid catfish of the genus Pseudecheneis are described from tributaries of the Ganges River in Nepal: Pseudecheneis crassicauda and P. serracula. Pseudecheneis crassicauda can be distinguished from congeners by a unique combination of 38–39 vertebrae, caudal peduncle depth 6.0–6.6% SL, eye diameter 7.5–8.3% HL, length of adipose-fin base 20.3–24.3% SL, pelvic fins reaching the base of the first anal-fin ray, and the presence of pale spots on the body. Pseudecheneis serracula can be distinguished from congeners in having a unique combination of 36–38 vertebrae, strongly elevated neural spines of the last 2–3 preanal and first 6–7 postanal vertebrae, length of adipose-fin base 26.8–30.4% SL, pelvic fins reaching the base of the first analfin ray, and the presence of pale spots on the body.

Two new species of Manunema (Plectida: Peresianidae) from the Arabian Gulf, with notes on the phylogeny of the genus

Zootaxa ◽  
2009 ◽  
Vol 2053 (1) ◽  
pp. 43-58
Author(s):  
NATALIE BARNES ◽  
TIMOTHY JOHN FERRERO
Keyword(s):  
New Species ◽  
Arabian Gulf ◽  
The Body ◽  
Cervical Region ◽  
Posterior Half ◽  
Kuwait Bay ◽  
Two New Species ◽  
Shallow Subtidal ◽  
Oesophageal Bulb

Two new species of Manunema are described from the coast of Kuwait, one from the intertidal in Kuwait Bay and one found at shallow subtidal sites in the Arabian Gulf. Like other species of Manunema, the two species described here are characterised by coarse striation of the cuticle; a tapered, trunk-like cervical region; a large, elongate oesophageal bulb and corresponding swelling of the body; absence of cervical setae; pedunculate somatic setae; paired outstretched ovaries in females, tubular precloacal supplements in males and a pair of simple, curved spicules in males. Manunema kithara sp. nov. differs from other species in the genus by its characteristic, elongate, double oesophageal bulb which resembles a guitar in shape, being broader in the posterior half, and by the shape and form of the two precloacal supplements in the males. Manunema kuwaitiensis sp. nov. is similar to both M. proboscidis and M. annulata in having a weakly double oesophageal bulb, but differs in the morphology and position of the single precloacal supplement in males.

Studies on trematodes of the genus Lecithodendrium Looss, 1896 from some Egyptian bats, with a description of two new species

1976 ◽  
Vol 50 (4) ◽  
pp. 281-285
Author(s):  
M. F. A. Saoud ◽  
M. M. Ramadan
Keyword(s):  
New Species ◽  
The Body ◽  
The Other ◽  
Two New Species ◽  
Continuous Band

ABSTRACTThe genus Lecithodendrium Looss, 1896 is reviewed and its prevalence in some Egyptian bats is reported. Lecithodendrium aegyptiacus n.sp. is described from Asellia tridens tridens and Rhinopoma hardwickei cystops. It can be easily differentiated from other species of the genus by the lobulation of the ovary and testes and the presence of tegumental spines all over the body of the trematode. Lecithodendrium duboisi n.sp. is described from Taphozous nudiventris nudiventris. It differs from the other known species of the genus by the characteristic arrangement of the vitellaria in the form of a continuous band posterior to the testes, while in the other species of the genus the vitellaria occur in the form of two separate clusters of posttesticular vitelline follicles.

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