scholarly journals Phylogenetic Relationship and Morphology of Dalzellia gracilis (Podostemaceae, Subfamily Tristichoideae) with Proposal of a New Genus

2009 ◽  
Vol 170 (2) ◽  
pp. 237-246 ◽  
Author(s):  
Satoshi Koi ◽  
Rolf Rutishauser ◽  
Masahiro Kato
Keyword(s):  
Phylogenetic Relationship ◽  
New Genus

Proposal of Fiersiphontina gen. nov., redescription of Fiersiphontina sensillata comb. nov., and new data on the distribution of Spiniferaphonte (Copepoda, Harpacticoida, Laophontidae)

Zootaxa ◽  
2011 ◽  
Vol 2809 (1) ◽  
pp. 1 ◽  
Author(s):  
MARIA CRISTINA BRUNO ◽  
Vezio Cottarelli
Keyword(s):  
Sexual Dimorphism ◽  
Phylogenetic Relationship ◽  
Type Species ◽  
New Genus ◽  
New Caledonia ◽  
Original Description ◽  
Sandy Beaches ◽  
The Philippines ◽  
Interstitial Fauna ◽  
Relationship Of

The taxonomic position and original description of Laophontina sensillata Wells & Rao, 1987 are reviewed based on specimens collected from the interstitial fauna of littoral coral sands of several islands of the Philippines and New Caledonia, and the species is designated as the type species of Fiersiphontina gen. nov. The new genus is proposed based on the total loss of sexual dimorphism in the P3 and P4 exopods, and the sexual dimorphism in P2 exopod. Fiersiphontina is highly adapted to the littoral interstitial habitat of coral sandy beaches, and is related to Laophontina Norman & T. Scott, 1905, Wellsiphontina Fiers, 1991 and Spiniferaphonte Gheerardyn & Fiers, 2007. The shared characteristics that indicate a strong affinity of Fiersiphontina to Spiniferaphonte are the robust, dorsally bent, and strongly sclerotised caudal seta V and the morphology of the genital field. The phylogenetic relationship of Spiniferaphonte and Fiersiphontina is also suggested by the analysis of the last ontogenetic phases of the species of the two genera. We re-describe here the adults of both sexes, describe the last three copepodid stages of Fiersiphontina sensillata (Wells & Rao, 1987) comb. nov., and provide notes on the biogeography of the four related genera, and on the ecology of Fiersiphontina and Spiniferaphonte.

scholarly journals Multi-Locus Phylogenetic Analyses of the Almadablennius Clade Reveals Inconsistencies with the Present Taxonomy of Blenniid Fishes

Diversity ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 53
Author(s):  
Luca Vecchioni ◽  
Andrew C. Ching ◽  
Federico Marrone ◽  
Marco Arculeo ◽  
Peter J. Hundt ◽  
...  
Keyword(s):  
Genetic Differentiation ◽  
Phylogenetic Relationship ◽  
Phylogenetic Trees ◽  
New Genus ◽  
Nuclear Dna ◽  
Phylogenetic Analyses ◽  
Dna Fragments

We used a multi-locus phylogenetic approach (i.e., combining both mitochondrial and nuclear DNA fragments) to address some long-standing taxonomic inconsistencies within the diverse fish clade of Combtooth Blennies (Blenniidae—unranked clade Almadablennius). The obtained phylogenetic trees revealed some major inconsistencies in the current taxonomy of Parablennini, such as the paraphyletic status of the Salaria and Parablennius genera, casting some doubt regarding their actual phylogenetic relationship. Furthermore, a scarce-to-absent genetic differentiation was observed among the three species belonging to the genus Chasmodes. This study provides an updated taxonomy and phylogeny of the former genus Salaria, ascribing some species to the new genus Salariopsis gen. nov., and emphasizes the need for a revision of the genus Parablennius.

A new genus of Aeshnini (Odonata: Aeshnidae) from the Andes, with description of a new species

1994 ◽  
Vol 25 (4) ◽  
pp. 427-438 ◽  
Author(s):  
Jürg De Marmels
Keyword(s):  
New Species ◽  
Phylogenetic Relationship ◽  
Type Species ◽  
New Genus ◽  
World Species ◽  
Neotropical Species ◽  
The Andes ◽  
Close Phylogenetic Relationship ◽  
Fourth Species ◽  
A New Species

AbstractAndaeschna gen. n. is established for three neotropical species currently assigned to Aeshna (Aeshna s.str.) Fabricius: Andaeschna unicolor (Martin, 1908) comb. n., A. rufipes (Ris, 1918) comb. n., and A. andresi (Racenis, 1958) comb. n. (type species). A fourth species, Andaeschna timotocuica sp. n., is described from Venezuela. The male lectotype of A. unicolor is redescribed. Andaesehna shares some peculiar character states with the Old World species 'Anaciaeschna' isoceles (Müller, 1767), but a close phylogenetic relationship between the two can not be demonstrated convincingly, and the true generic affiliation of the latter is unknown.

A new aglaspidid euarthropod with a six-segmented trunk from the Lower Ordovician Fezouata Konservat-Lagerstätte, Morocco

2015 ◽  
Vol 153 (3) ◽  
pp. 524-536 ◽  
Author(s):  
JAVIER ORTEGA-HERNÁNDEZ ◽  
PETER VAN ROY ◽  
RUDY LEROSEY-AUBRIL
Keyword(s):  
Phylogenetic Relationship ◽  
New Genus ◽  
Taxonomic Revision ◽  
Morphological Disparity ◽  
Early Ordovician ◽  
Late Cambrian ◽  
Lower Ordovician ◽  
Group A

AbstractA new euarthropod with an uncommon morphology, Brachyaglaspis singularis gen. et sp. nov., is described from the Early Ordovician (middle Floian) Fezouata biota of Morocco. The presence of a pair of postventral plates, widely attached to each other and located under the posterior-most trunk tergite and the base of the tailspine, indicates a phylogenetic relationship with the enigmatic group Aglaspidida. The overall morphology of Brachyaglaspis most closely resembles that of the ‘Ordovician-type’ aglaspidids, more specifically the late Cambrian – Early Ordovician genus Tremaglaspis. However, the presence of a prominent cephalon and only six trunk tergites in the new genus deviates from the organization of all other known aglaspidid species, notably extending the known range of morphological disparity of the group. A taxonomic revision of this euarthropod group indicates that the most accurate name and authorship combination correspond to Aglaspidida Walcott, 1912.

Molecular evidence for a close phylogenetic relationship among box-shaped halophilic bacteria, Halobacterium vallismortis, and Halobacterium marismortui

1983 ◽  
Vol 29 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Diarmuid E. Nicholson ◽  
George E. Fox
Keyword(s):  
Phylogenetic Relationship ◽  
New Genus ◽  
Sequence Data ◽  
Halophilic Bacteria ◽  
5S Rrna ◽  
Molecular Evidence ◽  
Rrna Sequence ◽  
Close Phylogenetic Relationship ◽  
Single Genus

The 5S rRNAs from Halobacterium vallismortis, Halobacterium marismortui (the Ginzburg strain), and two extremely halophilic isolates that exhibit an unusual "box-shaped" morphology were examined by ribonuclease T1 fingerprinting. The 5S rRNAs are found to be essentially identical and it is concluded that the four strains are in fact close phylogenetic relatives that should properly be assigned to a single genus. Comparison with previously available 5S rRNA sequence data from Halobacterium cutirubrum and Halococcus morrhuae indicates that the four strains examined here are quite distinct from both. It is further argued that this molecular evidence is not inconsistent with the previously proposed creation of a new genus, Haloarcula.

Patellaria: A new genus in the Chenopodiaceae

1976 ◽  
Vol 87 (5) ◽  
pp. 289-292
Author(s):  
J. T. Williams ◽  
A. J. Scott ◽  
B. V. Ford-Lloyd
Keyword(s):  
New Genus
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