A new sponge associated shrimp species of the Indo-West Pacific genus Paraclimenaeus (Decapoda, Caridea, Palaemonidae)

Crustaceana ◽  
2017 ◽  
Vol 90 (7-10) ◽  
pp. 1099-1115
Author(s):  
Machteld Odijk ◽  
Charles H. J. M. Fransen
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Mitochondrial Gene ◽  
West Pacific ◽  
Shrimp Species ◽  
Associated Species

A new sponge-associated species,Paraclimenaeus michaelisp. nov. from Sulawesi, Indonesia, and Singapore, is described and illustrated. The new species can be distinguished from its congenerics by: (1) the downwards curved rostrum with 2 acute dorsal teeth subdistally, (2) the absence of subdistal teeth on the fixed finger of the major second chela, (3) the pairs of dorsal telson spines at about 0.33 and 0.66 of the telson length, (4) the caudal fan sparsely setose, and (5) the second pereiopods without subdistal teeth on fixed finger. To evaluate its relationship with congenerics and species of the related generaApopontoniaandClimeniperaeus, a phylogenetic analysis based on the 16S mitochondrial gene is presented. A key for the identification of the species inApopontonia,ClimeniperaeusandParaclimenaeusis proposed.

scholarly journals The first representatives of the millipede family Glomeridellidae (Diplopoda, Glomerida) recorded from China and Indochina

ZooKeys ◽  
2020 ◽  
Vol 954 ◽  
pp. 1-15
Author(s):  
Weixin Liu ◽  
Sergei Golovatch
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Barcoding ◽  
Southern China ◽  
Mitochondrial Gene ◽  
Guizhou Province ◽  
The Family ◽  
Structural Details ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of glomeridellid millipede is described from Guizhou Province, southern China: Tonkinomeris huzhengkunisp. nov. This new epigean species differs very clearly in many structural details, being sufficiently distinct morphologically and disjunct geographically from T. napoensis Nguyen, Sierwald & Marek, 2019, the type and sole species of Tonkinomeris Nguyen, Sierwald & Marek, 2019, which was described recently from northern Vietnam. The genus Tonkinomeris is formally relegated from Glomeridae and assigned to the family Glomeridellidae, which has hitherto been considered strictly Euro-Mediterranean in distribution and is thus new to the diplopod faunas of China and Indochina. Tonkinomeris is re-diagnosed and shown to have perhaps the basalmost position in the family Glomeridellidae. Its relationships are discussed, both morphological and zoogeographical, within and outside the Glomeridellidae, which can now be considered as relict and basically Oriental in origin. Because of the still highly limited array of DNA-barcoding sequences of the COI mitochondrial gene available in the GenBank, the first molecular phylogenetic analysis of Glomerida attempted here shows our phylogram to be too deficient to consider meaningful.

Nassarius wesselinghi, new name for the homonymous N. reductus Vermeij and Wesselingh, 2002 (Gastropoda: Nassariidae)

2011 ◽  
Vol 85 (1) ◽  
pp. 178-178
Author(s):  
W. O. Cernohorsky ◽  
G. J. Vermeij
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Middle Miocene ◽  
Strict Sense ◽  
Pacific Region ◽  
West Pacific ◽  
New Name ◽  
Freshwater Gastropod ◽  
Peruvian Amazonia

Vermeij and Wesselingh (2002: 267, figs. 3 and 4) named a small freshwater gastropod from the Pebas Formation (middle Miocene) of Peruvian Amazonia as ?Nassarius reductus new species. This name turns out to be a secondary homonym of Nassa reticulata var. reducta Dollfus, 1926 (p. 103-106), a taxon from the Pliocene of Albania. The genus name Nassa as used by Dollfus is a misused variant on the correct genus name Nassarius Duméril, 1806. Although the Peruvian species is clearly not a Nassarius in the strict sense (restricted to the marine Indo-West Pacific region) a global phylogenetic analysis of Nassariidae is needed before its proper allocation can be determined, as already noted by Vermeij and Wesselingh (2002). We here rename the Peruvian fossil as Nassarius (s.l.) wesselinghi in honor of Frank P. Wesselingh who discovered the species. We thank Richard E. Petit for pointing out Dollfus's monograph to us.

Evaluation of the taxonomic position of the genus Carinina (Nemertea:Palaeonemertea), with descriptions of two new species

2021 ◽  
Author(s):  
Alexei V. Chernyshev ◽  
Neonila E. Polyakova ◽  
Terra C. Hiebert ◽  
Svetlana A. Maslakova
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Mitochondrial Gene ◽  
The Sea Of Japan ◽  
28S Rrna ◽  
North East ◽  
The North ◽  
Two New Species ◽  
Close Relationship ◽  
Brown Body

The genus Carinina Hubrecht, 1885 has long been considered the most ‘archaic’ nemertean taxon because its members are distinguished by the basiepidermal position of the brain and lateral nerve cords, characters thought to be plesiomorphic for the phylum. Here we describe two new species, Carinina yushini sp. nov. from the Sea of Japan (Russia) and C. chocolata sp. nov. from the north-east Pacific (Oregon, USA), distinguished by brown body colour. A phylogenetic analysis based on partial sequences of five nuclear and mitochondrial gene regions, 18S rRNA, 28S rRNA, histone H3, 16S rRNA and COI, confirms the monophyly of Carinina (Family Carininidae), and points to a close relationship to Carinoma (Family Carinomidae). The two groups together form a sister clade to the rest of the palaeonemerteans (Family Tubulanidae + Family Cephalotrichidae s.l.). Carinina plecta most likely belongs to the Tubulanidae. A morphological synapomorphy of the clade Carininidae + Carinomidae is a larva with a single midventral eye (in contrast to eyeless larvae of the Tubulanidae and two-eyed larvae of the Cephalotrichidae). Our phylogenetic analysis suggests that the basiepidermal position of the central nervous system is an autapomorphy of Carininidae (and, independently, C. plecta), rather than a plesiomorphy of the phylum Nemertea or the class Palaeonemertea, emphasising that the genus Carinina is no more archaic than any other palaeonemertean genus.

A new species of Dendrobates (Anura: Dendrobatidae) from the Amazonian lowlands in Perú

Zootaxa ◽  
2006 ◽  
Vol 1152 (1) ◽  
pp. 45 ◽  
Author(s):  
JASON L. BROWN ◽  
RAINER SCHULTE ◽  
KYLE SUMMERS
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Related Species ◽  
Repetition Rate ◽  
Mitochondrial Gene ◽  
Sister Group ◽  
Closely Related Species ◽  
Mean Frequency ◽  
Amazonian Lowlands ◽  
A New Species

We describe a new species of poison frog from Amazonian Peru. Dendrobates uakarii, sp. nov. is distinguished by the presence of paired parallel dorsolateral lines: one yellow oblique lateral and one red dorsolateral (on each flank), with one vertebral line, similar in color to the dorsolateral lines. Phylogenetic analysis show that D. uakarii, sp. nov. and closely related taxa (D. ventrimaculatus sp. aff. Shreve from Porto Walter, Brazil and another from Amazonas, Brazil) form the sister group to D. fantasticus Boulenger. This new species can be distinguished from its sister taxa on the basis of 19 unique mitochondrial gene nucleotide site substitutions. Comparisons between closely related species show a slight difference in call repetition rate and mean frequency.

A re-description of Cyrtodactylus chrysopylos Bauer (Squamata: Gekkonidae) with comments on the adaptive significance of orange coloration in hatchlings and descriptions of two new species from eastern Myanmar (Burma)

Zootaxa ◽  
2018 ◽  
Vol 4527 (2) ◽  
pp. 151 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L., JR. WOOD ◽  
MYINT KYAW THURA ◽  
NAY MYO WIN ◽  
MARTA S. GRISMER ◽  
...  
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
Color Pattern ◽  
Sister Species ◽  
Base Pairs ◽  
Bright Orange ◽  
Cave Population ◽  
Intraspecific Communication ◽  
Associated Species ◽  
The Village

The karstic foothills and hilly western edge of the Shan Plateau of eastern Myanmar continue to be sources of discovery for new species of the gekkonid genus Cyrtodactylus. Two new karst-associated species within this unique landscape from Mandalay Region—C. aunglini sp. nov. from the Kyauk Nagar Cave and C. myaleiktaung sp. nov. from Mya Leik Taung Mountain—are described on the basis of color pattern, morphology, and genetics. A molecular phylogeny of the C. gansi group (defined herein) based on 1481 base pairs of the mitochondrial gene ND2 and its flanking tRNAs place C. aunglini sp. nov. as the sister species to C. gansi and C. myaleiktaung sp. nov. as the sister species of C. chrysopylos. A new population of C. chrysopylos from a boulder-strewn, karstic ridge near the village of Yane, Shan State at an elevation 951 m is reported here. Genetic and geographic variation as well as differences in natural history between it and the lowland cave population of C. chrysopylos from the type locality in the Panlaung-Pyadalin Cave Wildlife Sanctuary, Shan State at 303 m are discussed. Hatchlings of the new population from Yane are nearly uniformly bright-orange in color. We provide evidence in support of a hypothesis claiming this color functions as a mechanism for crypsis during low levels of illumination and is not involved in intraspecific communication. 

scholarly journals Three new species of Phyllodesmium Ehrenberg (Gastropoda: Nudibranchia: Aeolidoidea), and a revised phylogenetic analysis

Zootaxa ◽  
2009 ◽  
Vol 2201 (1) ◽  
pp. 30-48 ◽  
Author(s):  
ELIZABETH MOORE ◽  
TERRENCE GOSLINER
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Phylogenetic Analyses ◽  
Protective Measure ◽  
Dental Morphology ◽  
Current Analysis ◽  
The Third ◽  
Genetic Sequences ◽  
Three New Species ◽  
Associated Species

Mimicry and camouflage are an important protective measure for nudibranch gastropods. In the genus Phyllodesmium, species have evolved elaborate morphological traits that allow them to be very cryptic among their coral prey. In this study, three new species of Phyllodesmium from the Philippine islands are described: Phyllodesmium tuberculatum n. sp., Phyllodesmium pinnatum n. sp., and Phyllodesmium karenae n. sp. The first two, P. tuberculatum and P. pinnatum, are highly cryptic on their prey and were already included in a phylogenetic analysis by Moore & Gosliner (in press). The third species (P. karenae) is newly discovered and has not yet been observed on its prey. A revised morphological phylogenetic analysis is presented that includes this species, as well as three species that were recently described by Burghardt et al. (2008a). In addition, the current analysis excludes a previously presumed new species, which was referred to as Phyllodesmium sp. 3 by Moore & Gosliner (in press), because it was determined to be an abnormally preserved specimen of P. jakobsenae. The newest species, P. karenae, has an unusual dental morphology, no branching of the digestive diverticula, and no zooxanthellae present in the cerata. It fell into the basal part of the phylogeny, as was expected based on previous general trends showing the derived status of symbiotic species. The three species described by Burghardt et al. (2008a), two of which are associated with xeniid corals, appear in a highly unresolved part of the phylogeny including other xeniid-associated species. One of these, P. koehleri, is not associated with xeniid corals but is indistinguishably intermixed within this clade. Decay analysis values for most nodes are low, indicating that support for this topology is lacking. It is recommended that the addition of less ambiguous characters, such as genetic sequences, be considered for further phylogenetic analyses.

scholarly journals Two new species of shrimp of the Indo-West Pacific genus Hamodactylus Holthuis, 1952 (Crustacea: Decapoda: Palaemonidae)

2016 ◽  
Author(s):  
Ivona Horká ◽  
Charles H.J.M. Fransen ◽  
Zdeněk Ďuriš
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Single Pair ◽  
Barrier Reef ◽  
Two New Species ◽  
The Status ◽  
Associated Species ◽  
Full Reduction

Two new alcyonacean-associated species, Hamodactylus paraqabai sp. nov. from Papua New Guinea and the Great Barrier Reef and H. pseudaqabai sp. nov. from Indonesia and Malaysia, are described and illustrated. To evaluate the status of the new species and their relationship within the genus Hamodactylus Holthuis, 1952, we combined morphology and phylogenetic analyses based on the cytochrome c oxidase subunit I (COI) mitochondrial gene. Both new species are closely related, with their mutual genetic divergence reaching 3-4%. They are further most related to Hamodactylus aqabai Bruce & Svoboda, 1983, originally described from the Red Sea. Both new species are distinguished from all other congeners by the presence of multiple teeth distally on the cutting edges of the fingers of the first pereiopods, and, in the case of H. paraqabai sp. nov., by a full reduction of the fixed finger on the second pereiopod chela. In H. pseudaqabai sp. nov. the finger is greatly reduced to a small but distinct stub, and the telson bears only a single pair of dorsal spines, as in H. aqabai. A key for the identification of all six currently known species is proposed.

Culex (Culex) longitubus, A New Species of the Mimeticus Subgroup (Diptera: Culicidae) From Bhutan

2021 ◽  
Author(s):  
Pradya Somboon ◽  
Thanari Phanitchakun ◽  
Jassada Saingamsook ◽  
Rinzin Namgay ◽  
Ralph E Harbach
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Male Genitalia ◽  
Immature Stages ◽  
High Altitudes ◽  
Coi Sequences ◽  
Anal Papillae ◽  
A New Species

Abstract Culex longitubus Somboon, Namgay & Harbach is described as a new species of the Mimeticus Subgroup of the subgenus Culex. The larva is most similar to the larva of Cx. tianpingensis Chen from China, but is distinguished by the length of the siphon and the anal papillae, the form of the comb scales and pecten spines, and the development of setae 7-P, 13-T, 1-X, and 4-X. The adults have wing markings and male genitalia similar to those of species of the Mimeticus Complex. Phylogenetic analysis of COI sequences revealed that the new species is closely related to Cx. murrelli Lien of the Mimulus Complex. The immature stages of the new species were found in stagnant pools and marshes at high altitudes in several districts of Bhutan.

Four new Burmese species of Hemiphyllodactylus Bleeker (Squamata: Gekkonidae) from distantly related parapatric clades from the Shan Plateau and Salween Basin

Zootaxa ◽  
2020 ◽  
Vol 4758 (1) ◽  
pp. 45-82 ◽  
Author(s):  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
EVAN S. H. QUAH ◽  
MYINT KYAW THURA ◽  
JAMIE R. OAKS ◽  
...  
Keyword(s):  
New Species ◽  
Cloud Forest ◽  
Mitochondrial Gene ◽  
Color Pattern ◽  
The South ◽  
Taxonomic Analysis ◽  
The North ◽  
North And South ◽  
Northwestern Thailand

An integrative taxonomic analysis based on morphology, color pattern, and the mitochondrial gene ND2 recovered four new species of Hemiphyllodactylus Bleeker that are endemic to the Shan Plateau or Salween Basin in eastern Myanmar. Hemiphyllodactylus ngwelwini sp. nov. from the Shan Plateau is part of the earlier described “eastern Myanmar clade” renamed herein as the north lineage and H. kyaiktiyoensis sp. nov. and H. pinlaungensis sp. nov. of the Shan Plateau and H. zwegabinensis sp. nov. of the Salween Basin compose an entirely new Burmese clade herein referred to as the south lineage. Although the north and south lineages come within 46 km of one another on the Shan Plateau, they are not sister lineages but sequentially separated by two lineages from Yunnan, China and another from northwestern Thailand. Hemiphyllodactylus zwegabinensis sp. nov. is the first species of this genus to be recorded from the Salween Basin and is known only from a wind-blown cloud forest on the top of the insular, karstic mountain Zwegabin in Kayin State. All other Burmese species except for H. typus, are endemic to the various localities throughout the Shan Plateau. These four new species bring the total number of Hemiphyllodactylus in Myanmar to at least 10 which is certainly an extreme underestimate of the diversity of this genus given that we discover new species at every upland locality we survey. 

scholarly journals Black spicules from a new interstitial opheliid polychaete Thoracophelia minuta sp. nov. (Annelida: Opheliidae)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Naoto Jimi ◽  
Shinta Fujimoto ◽  
Mami Takehara ◽  
Satoshi Imura
Keyword(s):  
Developmental Biology ◽  
Phylogenetic Analysis ◽  
New Species ◽  
Morphological Diversity ◽  
The Body ◽  
Evolutionary Significance ◽  
Research Subject ◽  
Ecological Diversity ◽  
Coelomic Cavity ◽  
Molecular Phylogenetic

AbstractThe phylum Annelida exhibits high morphological diversity coupled with its extensive ecological diversity, and the process of its evolution has been an attractive research subject for many researchers. Its representatives are also extensively studied in fields of ecology and developmental biology and important in many other biology related disciplines. The study of biomineralisation is one of them. Some annelid groups are well known to form calcified tubes but other forms of biomineralisation are also known. Herein, we report a new interstitial annelid species with black spicules, Thoracophelia minuta sp. nov., from Yoichi, Hokkaido, Japan. Spicules are minute calcium carbonate inclusions found across the body and in this new species, numerous black rod-like inclusions of calcium-rich composition are distributed in the coelomic cavity. The new species can be distinguished from other known species of the genus by these conspicuous spicules, shape of branchiae and body formula. Further, the new species’ body size is apparently smaller than its congeners. Based on our molecular phylogenetic analysis using 18S and 28S sequences, we discuss the evolutionary significance of the new species’ spicules and also the species' progenetic origin.

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