Marine flatworms in the Gulf of Guinea: a description of a new species of Pseudobiceros (Platyhelminthes; Polycladida) from Principe Island

2020 ◽  
Vol 96 (4) ◽  
pp. 753-764
Author(s):  
Patricia Pérez-García ◽  
Aketza Herrero-Barrencua ◽  
Carolina Noreña ◽  
Juan Lucas Cervera
Keyword(s):  
New Species ◽  
Body Shape ◽  
Dorsal Surface ◽  
Morphological Features ◽  
Background Color ◽  
Gulf Of Guinea ◽  
White Spots ◽  
A New Species ◽  
Oval Body

A new species of polyclad flatworm belonging to the genus Pseudobiceros Faubel, 1984 is described based on external and internal morphological features from specimens collected on the coasts of Principe Island. Pseudobiceros principensis sp. nov. is a large-sized worm, with well-developed pseudotentacles, an elongated oval body shape, and deep marginal ruffles. It is characterized by a blackish to reddish background color, with scattered yellow and white spots or stripes of different sizes (forming a star-like shape) along the whole dorsal surface.

A new species of the Genus Pelodiscus Fitzinger, 1835 (Testudines: Trionychidae) from Huangshan, Anhui, China

Zootaxa ◽  
2021 ◽  
Vol 5060 (1) ◽  
pp. 137-145
Author(s):  
YAN-AN GONG ◽  
LI-FANG PENG ◽  
SONG HUANG ◽  
YAN-FENG LIN ◽  
RU-YI HUANG ◽  
...  
Keyword(s):  
New Species ◽  
Strong Support ◽  
Dorsal Surface ◽  
Cyt B ◽  
White Spots ◽  
Dark Patch ◽  
Maximum Body ◽  
Maximum Body Length ◽  
A New Species ◽  
Yellowish White

A new species of the soft-shelled turtle genus Pelodiscus is described based on seven specimens from Huangshan, southern Anhui Province, China. The new species, Pelodiscus huangshanensis sp. nov., is distinguished from other species in the genus Pelodiscus by the following characteristics: (1) Small size (maximum carapace length of 101.16 mm and maximum body length of 190 mm); (2) keel high; (3) tiny yellowish-white spots on the throat; (4) no black pinstripes around the eyes; (5) white longitudinal bands on both sides of the neck in juveniles, absent in adults; (6) plastron yellowish-white, and only a dark patch on each side of the armpit; (7) many tubercles on the dorsal surface, but indistinct in the center; and (8) entoplastron “⌒” shaped. The phylogenetic relationships of the species in Pelodiscus were reconstructed using the sequences of cytochrome b (cyt b) and NADH dehydrogenase subunit 4 (ND4) genes. The new species formed a monophyletic clade with strong support. The uncorrected pairwise distances between the new species and other representatives of Pelodiscus ranged from 5.4% to 9.2% for cyt b and 4.1% to 7.6% for ND4. The new species brings the number of species of the genus Pelodiscus to six; five species are distributed in China, with three species endemic to China.  

A new species of lambdarina (rhynchonellida, brachiopoda) from the viséan of central sudetes (Poland) and its phylogenetic position

2014 ◽  
Vol 64 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jolanta Muszer
Keyword(s):  
New Species ◽  
Full Range ◽  
Morphological Features ◽  
Phylogenetic Position ◽  
Growth Stages ◽  
Tropical Waters ◽  
Marginal Seas ◽  
Sw Poland ◽  
A New Species

Abstract A new species of micromorphic articulate brachiopod (Rhynchonellida) Lambdarina jugowiensis sp. nov., from the upper Visean (Sokolec Beds) of central Sudetes, SW Poland, is described. The studied specimens are calcified, what makes them unique in respect of their state of preservation. The material is represented by a full range of growth stages; from brephic to gerontic. Based on its morphological features and the palaeogeographical distribution of all its known species, two main evolutionary lines are proposed for the genus; the Australian and the European ones. Lambdarina was widely distributed in the equatorial-tropical waters of marginal seas of the Palaeotethys Ocean, mostly during Mississippian time.

Leptochelia Vatulelensis (Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western Pacific

2011 ◽  
Vol 54 (2) ◽  
pp. 351-363
Author(s):  
Modest Guţu ◽  
Thomas Iliffe
Keyword(s):  
New Species ◽  
New Caledonia ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Western Pacific ◽  
Small Islands ◽  
The South ◽  
Anchialine Caves ◽  
A New Species

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.

Taxonomic revision of the Jita snakes (Lamprophiidae: Boaedon) from São Tomé and Príncipe (Gulf of Guinea), with the description of a new species

2021 ◽  
pp. 1-31
Author(s):  
Luis MP Ceríaco ◽  
Ana Lisette Arellano ◽  
Robert C Jadin ◽  
Mariana P Marques ◽  
Diogo Parrinha ◽  
...  
Keyword(s):  
New Species ◽  
Taxonomic Revision ◽  
Gulf Of Guinea ◽  
Sao Tome And Principe ◽  
A New Species

scholarly journals The freshwater crabs of Danum Valley Conservation Area in Sabah, East Malaysia, with a description of a new species of Thelphusula Bott, 1969 (Crustacea, Brachyura, Gecarcinucidae, Potamidae, Sesarmidae)

ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 89-112 ◽  
Author(s):  
Peter K. L. Ng ◽  
Paul Y. C. Ng
Keyword(s):  
New Species ◽  
Adult Male ◽  
New Record ◽  
Morphological Features ◽  
Unique Combination ◽  
Conservation Area ◽  
Freshwater Crabs ◽  
East Malaysia ◽  
A New Species ◽  
Malaysian Borneo

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: Thelphusulacapillodigitus sp. n., Thelphusuladicerophilus Ng & Stuebing, 1990, Arachnothelphusaterrapes Ng, 1991, Terrathelphusasecula Ng & Tan, 2015, Parathelphusavalida Ng & Goh, 1987 (new record) (Gecarcinucidae); Isolapotamoningeri Ng & Tan, 1998 (Potamidae); and Geosesarmadanumense Ng, 2002 (Sesarmidae). The new species of Thelphusula Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. Arachnothelphusaterrapes is confirmed to be a phytotelm species. A key to all species in the conservation area is provided.

A new species of Tychus Leach, 1817 from Lebanon (Coleoptera, Staphylinidae, Pselaphinae)

Zootaxa ◽  
2019 ◽  
Vol 4656 (3) ◽  
pp. 596-600
Author(s):  
GIORGIO SABELLA ◽  
FABIO MASSIMO VIGLIANISI ◽  
VERA D’URSO
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
A New Species

Tychus meggiolaroi sp. n. from Lebanon is described and illustrated. It belongs to the Tychus cilicicus species group (Sabella & Kurbatov 2002) and can be readily distinguished from related taxa by the different structure of the aedeagus and morphological features of antennae. 

scholarly journals Guianacara dacrya, a new species from the rio Branco and Essequibo River drainages of the Guiana Shield (Perciformes: Cichlidae)

2011 ◽  
Vol 9 (1) ◽  
pp. 87-96 ◽  
Author(s):  
Jessica H Arbour ◽  
Hernán López-Fernández
Keyword(s):  
New Species ◽  
River Basins ◽  
Guiana Shield ◽  
Dorsal Fin ◽  
White Spots ◽  
Tooth Plate ◽  
Northern Brazil ◽  
Pharyngeal Jaw ◽  
River Drainages ◽  
A New Species

A new species of Guianacara is described from tributaries of the Essequibo River and the rio Branco in Guyana and northern Brazil. Guianacara dacrya, new species, can be diagnosed from all congeners by the possession of a unique infraorbital stripe and by the shape of the lateral margin of the lower pharyngeal jaw tooth plate. Guianacara dacrya can be further distinguished from G. geayi, G. owroewefi, G. sphenozona and G. stergiosi by the possession of a thin midlateral bar, from G. cuyunii by the possession of dusky branchiostegal membranes and from G. oelemariensis by the possession of two supraneurals. This species differs from most congeners by the presence of white spots on the spiny portion of the dorsal fin, the placement of the midlateral spot, the presence of filaments on the dorsal, anal and in rare cases the caudal-fin and from at least the Venezuelan species by several morphometric variables. Guianacara dacrya is known from the Essequibo, Takutu and Ireng River basins of Guyana and possibly from the rio Uraricoera in the rio Branco basin in Brazil. A key to the species is provided.

A New Species of Gracixalus (Anura: Rhacophoridae) from Northern Vietnam

2021 ◽  
Vol 28 (3) ◽  
pp. 111-122
Author(s):  
Dzung Trung Le ◽  
Yen Thi Do ◽  
Tung Thanh Tran ◽  
Truong Quang Nguyen ◽  
Nikolai L. Orlov ◽  
...  
Keyword(s):  
New Species ◽  
Tropical Forest ◽  
Central Region ◽  
Lateral Surface ◽  
Dorsal Surface ◽  
Upper Eyelid ◽  
Morphological Differences ◽  
Montane Tropical Forest ◽  
Ventral Skin ◽  
A New Species

A new species of Gracixalus is described from northwestern Vietnam based on morphological differences and molecular divergence. Morphologically, the new species, Gracixalus ziegleri sp. nov., is distinguishable from its congeners on the basis of a combination of the following diagnostic characters: (1) size small (SVL 28.1 – 30.5 mm); (2) head slightly wider than long; (3) vomerine teeth absent; (4) upper eyelid and dorsum without spine; (5) supratympanic fold distinct; (6) skin of dorsal and lateral surface of head, body and limbs rough, sparsely scattered with tubercles; (7) ventral skin granular; (8) tibiotarsal projection absent; (9) toes with moderately developed webbing, formula I1 – 11/2 II1 – 2III1 – 2IV2 – 1V; (10) dorsal surface of head and body brown to beige above, with an inverse Y-shaped dark brown marking, extending from interorbital region to central region of dorsum; (11) external vocal sac absent in males; (12) males with a nuptial pad on finger I. Phylogeneticially, the new species is a sister taxon of Gracixalus sapaensis and G. tianlinensis with well-supported values. Currently, the new species is known only from the evergreen montane tropical forest of Yen Bai Province at an elevation of ca. 2200 m a.s.l.

Stachys semsurensis (Lamiaceae), a new species from Adıyaman province (Turkey) belonging to section Infrarosularis

Phytotaxa ◽  
2021 ◽  
Vol 511 (3) ◽  
Author(s):  
MEHMET FIRAT
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Habitat Structure ◽  
Conservation Status ◽  
Morphological Features ◽  
Point Of View ◽  
Distribution Map ◽  
Comprehensive Description ◽  
Glandular Hairs ◽  
A New Species

A new species, Stachys semsurensis (sect. Infrarosularis), is described and illustrated from Adıyaman province, Turkey. From the morphological point of view, it appears to be similar to Stachys cataonica, but it differs in several morphological features including densely covered with short stalked to subsessile glandular hairs in flowering stems, verticillasters congested into ± globose head, calyx teeth lanceolate-subulate, corolla white, tube exserted and nutlets obovoid, greyish-brown, reticulate. A comprehensive description of the new species is provided, including detailed photographs, geographical distribution map, habitat structure and ecology, vernacular name and IUCN conservation status.

A new species of Plestiodon (Squamata: Scincidae) from the Senkaku Group, Ryukyu Archipelago, Japan

Zootaxa ◽  
2017 ◽  
Vol 4254 (5) ◽  
pp. 520 ◽  
Author(s):  
KAZUKI KURITA ◽  
HIDETOSHI OTA ◽  
TSUTOMU HIKIDA
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
Posterior Surface ◽  
Ryukyu Archipelago ◽  
Molecular Analyses ◽  
Conservation Implications ◽  
Island Group ◽  
A New Species

A new scincid lizard, Plestiodon takarai sp. nov., is described from the Senkaku Group, Ryukyu Archipelago, Japan. The Plestiodon lizards in this island group have previously been identified as P. elegans because they all exhibit a patch of enlarged and irregularly arranged scales on the posterior surface of their femurs. However, detailed molecular analyses revealed that the Senkaku population, although closely related to P. elegans and other species in the P. latiscutatus species group, is substantially diverged from all other recognized species. Furthermore, although the Senkaku population largely exhibits the characteristic morphological features of this species group, it can be differentiated from all recognized species by the scutellation and hatchling tail coloration. The biogeographical and conservation implications of these findings are briefly discussed. 

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