Description of two new species of Rhadinorhynchus (Acanthocephala, Rhadinorhynchidae) from marine fish in Halong Bay, Vietnam, with a key to species

2011 ◽  
Vol 56 (1) ◽  
Author(s):  
Omar Amin ◽  
Richard Heckmann ◽  
Nguyen Ha
Keyword(s):  
Body Wall ◽  
The Body ◽  
Valid Species ◽  
Key To Species ◽  
Proboscis Hook ◽  
Two New Species ◽  
Gulf Of Tonkin ◽  
Males And Females ◽  
Halong Bay ◽  
Posterior Field

AbstractTwo rhadinorhynchid species of acanthocephalans, Rhadinorhynchus dorsoventrospinosus sp. nov. and Rhadinorhynchus laterospinosus sp. nov. are described from the redtail scad, Decapterus kurroides Bleeker, and the trigger fish Balistes sp., respectively. The hosts were collected off Cat Ba Island, Halong Bay, Gulf of Tonkin, Vietnam in May, 2009. This brings the total number of species of Rhadinorhynchus Lühe, 1911 to 38. Specimens of the first species are characterized by having 11–12 proboscis hook rows with 30–31 hooks each, large dorsal and ventral spines in the posterior field of trunk spines, large eggs (100 × 20), and subterminal gonopore in both males and females. It is further characterized by many prominent fragmented nuclei in the body wall. The 1 female of the second species has 18 proboscis hook rows with 24 hooks each, smaller eggs (62 × 17), lateral trunk spines connecting those in the anterior and the posterior fields, and subterminal female gonopore. Notes on the genus Rhadinorhynchus, lists of the invalid and valid species, and a key to species are provided. Raorhynchus Tripathi, 1959 is proposed to be a junior synonym of Rhadinorhynchus pending a revision of the species of Raorhynchus.

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.

scholarly journals An illustrated key to the species of the genus Narella (Cnidaria, Octocorallia, Primnoidae)

ZooKeys ◽  
2019 ◽  
Vol 822 ◽  
pp. 1-15 ◽  
Author(s):  
Stephen D. Cairns ◽  
Michelle L. Taylor
Keyword(s):  
Outer Surface ◽  
Body Wall ◽  
Species Level ◽  
The Body ◽  
Valid Species ◽  
History Of ◽  
Surface Ornamentation

A history of the description of the 50 valid species of Narella is given, beginning with the first species described in 1860. To help differentiate the various species, a tabular and a polychotomous key are provided. The species in the keys are arranged using nine characters or character sets that are believed to be of value at the species level. New characters or new significance given to previously described characters used in our keys include: 1) the nature of the dorsolateral edge of the basal scale, being ridged or not, 2) the thickness of the body wall scales, and 3) the arrangement of the coenenchymal scales (imbricate or mosaic), their thickness (thin or massive), and their outer surface ornamentation (ridged or not). All characters used in the keys are illustrated.

scholarly journals A hard-earned draw: phylogeny-based revision of the deep-sea shrimp Bentheogennema (Decapoda: Benthesicymidae) transfers two species to other genera and reveals two new species

2019 ◽  
Vol 187 (4) ◽  
pp. 1155-1172 ◽  
Author(s):  
Anastasia A Lunina ◽  
Dmitry N Kulagin ◽  
Alexander L Vereshchaka
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Genus ◽  
Morphological Characters ◽  
The Body ◽  
Phylogenetic Study ◽  
Key To Species ◽  
Molecular Analyses ◽  
Two New Species ◽  
Species Groups

Abstract The phylogenetic study of the deep-sea genus Bentheogennema is based on four molecular markers and 79 morphological characters. All four previously recognized species and two new species of Bentheogennema, representatives of all other genera and species groups of Benthesicymidae, and three outgroups were included in the analyses. We have examined and coded six major groups of morphological characters related to the carapace (three characters), the pleon and the telson (14), the mouthparts (nine), the armature of the pereopods (five), the thelycum (27) and the petasma (21). Results of morphological and molecular analyses were similar. Two species were transferred from Bentheogennema to other genera (for one of them a new genus was erected) and two new species of Bentheogennema were described. Three pelagic genera (Gennadas, Bentheogennema and a new genus) created a robust clade. The divergence of this clade is linked to ‘smoothening’ of the body (reduction of the branchiostegal spine on the carapace, reduction and loss of the dorsolateral spines and the end-piece on the telson) and elaboration of the copulatory structures. We provide amended diagnoses of these three pelagic genera and key to species of Bentheogennema.

Worldwide revision of the genus Phaenoglyphis (Hymenoptera, Cynipoidea, Figitidae, Charipinae)

2019 ◽  
Vol 50 (2) ◽  
pp. 235-296 ◽  
Author(s):  
Mar Ferrer-Suay ◽  
Jesús Selfa ◽  
Noel Mata-Casanova ◽  
Nicolas Pérez Hidalgo ◽  
Juli Pujade-Villar
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Characters ◽  
Type Material ◽  
Valid Species ◽  
Key To Species ◽  
World Species ◽  
Incertae Sedis ◽  
The World ◽  
Two New Species

A complete revision of the world species of the genus Phaenoglyphis Förster, 1869 has been conducted. A total of 25 species of Phaenoglyphis are valid after studying their type material. Two new species are described: Phaenoglyphis belizini sp. n. and Phaenoglyphis palmirae sp. n. Two species are synonymized: P. dolichocera (Cameron, 1889) with P. nigripes (Thomson, 1877) and P. pecki Andrews, 1978 with P. villosa (Hartig, 1841). Phaenoglyphis bangalorensis Kurian, 1953 was considered as incertae sedis. Phaenoglyphis duplocarpentieri (Kieffer, 1904) and P. hedickei Hedicke, 1928 are considered lost. Other three species are discarded as valid species because they are missing important parts without which the species cannot be defined: P. cincta (Hartig, 1841), P. frigidus (Belizin, 1968) and P. repentinus Belizin, 1962. A complete redescription and an illustrative plate are presented. A key to species of the genus Phaenoglyphis is given. Phylogenetic analysis based on morphological characters has been performed.

Two new species of Metachromadora (Nematoda: Desmodoridae) from Guanabara Bay, Rio de Janeiro, Brazil, and a revised dichotomous key to the genus

2013 ◽  
Vol 94 (1) ◽  
pp. 105-114
Author(s):  
Tatiana F. Maria ◽  
Nic Smol ◽  
André M. Esteves
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Rio De Janeiro ◽  
Valid Species ◽  
Guanabara Bay ◽  
Key To Species ◽  
Dichotomous Key ◽  
Two New Species ◽  
Amphidial Fovea

Two new species of Metachromadora are described from Bananal and Bica beaches in Guanabara Bay on the coast of Rio de Janeiro, Brazil. Both new species belong to the subgenus Bradylaimus, which is characterized by the absence of lateral alae. Metachromadora prepapillata sp. nov. is characterized by the presence of 8–9 precloacal papilliform supplements, while Metachromadora verae sp. nov. is characterized by the sexual dimorphism of the amphidial fovea, presence of 8–9 precloacal tubuliform supplements, and three postcloacal papillae. An updated dichotomous key to species of Metachromadora is proposed. Metachromadora asupplementa is reinstated as a valid species.

The genus Thelepus Leuckart, 1849 (Annelida, Thelepodidae) in Brazil, with a redescription of the holotype of T. setosus (Quatrefages, 1866)

Zootaxa ◽  
2017 ◽  
Vol 4250 (6) ◽  
pp. 587
Author(s):  
ORLEMIR CARRERETTE ◽  
JOÃO MIGUEL DE MATOS NOGUEIRA ◽  
PAT HUTCHINGS
Keyword(s):  
New Species ◽  
Body Wall ◽  
Original Description ◽  
Species Level ◽  
The Body ◽  
Type Locality ◽  
Lower Lip ◽  
Cosmopolitan Species ◽  
Wide Range ◽  
Two New Species

The genus Thelepus Leuckart, 1849 is well known in Brazilian waters, from a species recorded by several authors as T. setosus (Quatrefages, 1866), which is considered to be a cosmopolitan species. However, the type locality of T. setosus is in France, which renders the presence of this species in Brazilian waters rather unlikely. The wide range of distribution of T. setosus is most likely due to misidentifications, especially because the original description of the species is very brief and does not include several characters now relevant at species level. We provide herein a redescription of the holotype of T. setosus and describe two new species from Brazilian material previously identified as belonging to that species. Thelepus megalabiatum n. sp. is characterised by having an expanded lower lip extending ventrally, many branchial filaments, originating from swollen cushions, with wide mid-dorsal gap between filaments within pairs, 26–33 segments with glandular areas, and 44–61+ pairs of notopodia. Thelepus brevitori n. sp. is characterised by having fewer branchial filaments, originating directly from the body wall, about 17 segments highly glandular ventrally, and up to 27 pairs of notopodia. Both new species are compared to the most similar congeners, including T. setosus. 

scholarly journals Morphological and molecular description of Rhadinorhynchus laterospinosus Amin, Heckmann & Ha, 2011 (Acanthocephala, Rhadinorhynchidae) from marine fish off the Pacific coast of Vietnam

Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 14 ◽  
Author(s):  
Omar Mohamed Amin ◽  
Richard Anderson Heckmann ◽  
Sara Dallarés ◽  
María Constenla ◽  
Nguyen Van Ha
Keyword(s):  
Host Species ◽  
Pacific Coast ◽  
Molecular Profile ◽  
The Pacific ◽  
Gulf Of Tonkin ◽  
Original Record ◽  
Coast Of Vietnam ◽  
Halong Bay ◽  
Anterior Ring ◽  
Posterior Field

Rhadinorhynchus laterospinosus Amin, Heckmann & Ha, 2011 (Rhadinorhynchidae) was described from a single female collected from a trigger fish, Balistes sp. (Balistidae) from the northern Pacific coast of Vietnam in Halong Bay, Gulf of Tonkin. More recent collections of fishes in 2016 and 2017 revealed wider host and geographical distributions. We report this Acanthocephala from nine species of fish representing six families (including the original record from Balistes sp.) along the whole Pacific coast of Vietnam. The fish species are Alectis ciliaris (Carangidae), Auxis rochei (Scombridae), Auxis thazard (Scombridae), Leiognathus equulus (Leiognathidae), Lutjanus bitaeniatus (Lutjanidae), Megalaspis cordyla (Carangidae), Nuchequula flavaxilla (Leiognathidae), and Tylosurus sp. (Belonidae). We provide a complete description of males and females of R. laterospinosus, discuss its hook metal microanalysis using EDAX, and its micropores. Specimens of this species characteristically have lateral trunk spines bridging the anterior ring of spines with posterior field of ventral spines and a proboscis with 15–19 longitudinal alternating rows of 21–26 hooks each varying with host species. We demonstrate the effect of host species on the distribution and size of the trunk, proboscis, proboscis hooks, trunk spines, and reproductive structures. The molecular profile of this acanthocephalan, based on 18S rDNA and cox1 genes, groups with other Rhadinorhynchus species and further seems to confirm the paraphyly of the genus, which is discussed.

scholarly journals Review of the leafhopper subgenus Pediopsoides (Sispocnis) (Hemiptera, Cicadellidae, Eurymelinae, Macropsini) with description of two new species from China

ZooKeys ◽  
2019 ◽  
Vol 855 ◽  
pp. 71-83
Author(s):  
Hu Li ◽  
Juan Li ◽  
Ren-Huai Dai
Keyword(s):  
New Species ◽  
Type Species ◽  
Sichuan Province ◽  
Junior Synonym ◽  
Southwestern China ◽  
Valid Species ◽  
Key To Species ◽  
Two New Species

The leafhopper subgenus Pediopsoides (Sispocnis) Anufriev, 1967 is reviewed and the type species is fixed asBythoscopuskogotensisMatsumura, 1912. Six valid species of the subgenus are recognized including two new species described and illustrated here, Pediopsoides (Sispocnis) rectus Li, Li & Dai,sp. nov.and P. (S.) triangulus Li, Li & Dai,sp. nov.from Sichuan Province of Southwestern China. Additionally P. (S.) heterodigitatus Dai & Zhang, 2009 is proposed as a junior synonym of P. (S.) aomians (Kuoh, 1981) based on examination of many specimens. A key to species of the subgenus is also provided for identification.

scholarly journals Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Paraguay basin, with a redescription of Hypostomus cochliodonKner, 1854

2014 ◽  
Vol 12 (3) ◽  
pp. 585-602 ◽  
Author(s):  
Luiz F. C. Tencatt ◽  
Cláudio H. Zawadzki ◽  
Otávio Froehlich
Keyword(s):  
New Species ◽  
Thick Layer ◽  
Color Pattern ◽  
The Body ◽  
The Other ◽  
Valid Species ◽  
Monophyletic Clade ◽  
Black Spots ◽  
Two New Species ◽  
Lateral Plates

Hypostomus cochliodon group is a monophyletic clade of 20 valid species of Neotropical armored catfishes that is widely distributed throughout South America. Recently, specimens identified as H. cochliodon from the type locality and nearby localities were examined, and found to include representatives of more than one species. A redescription of H. cochliodon is provided, with a description of two new species, one from the Bodoquena Plateau and another from several localities of the rio Paraguay basin. A lectotype for H. cochliodon is designated herein, since the previous designation is invalid. Hypostomus cochliodon is diagnosed from all other species of the H. cochliodon group by having the opercle almost completely covered laterally by thick layer of skin, the absence of buccal papilla, weak to moderately developed keels on the lateral plates of the body and by the color pattern of its body and fins. Hypostomus basilisko, new species, is distinguished from the remaining species of the H. cochliodon group by the absence of spots on the body, highly developed keels and spoon-shaped teeth. Hypostomus khimaera, new species, is distinguished from the other species of the H. cochliodon group by having a dark tan stripe along the midline of the flank, black spots on the body and/or fins and teeth with mesial cusp and not spoon-shaped.

Two new species of the Nematode Genus Rhabdias

1924 ◽  
Vol 2 (5) ◽  
pp. 203-208 ◽  
Author(s):  
T. Goodey
Keyword(s):  
New Species ◽  
Body Wall ◽  
Parasitic Nematode ◽  
The Body ◽  
Nematode Genus ◽  
Two New Species

Several specimens of this parasitic nematode were collected from the lungs of a common British Toad (Bufo vulgaris). They were examined alive, when it was at once apparent that the anterior end was different from that of R. bufonis, in that the body-wall was swollen almost to a sphere and the surrounding cuticle was correspondingly much inflated. It was also noticed that the oesophagus had a slight bulbar swelling towards its anterior end not present in R. bufonis.

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