scholarly journals Rare, deep-water and similar: revision of Sibogasyrinx (Conoidea: Cochlespiridae)

2021 ◽  
Vol 773 ◽  
pp. 19-60
Author(s):  
Yuri I. Kantor ◽  
Nicolas Puillandre

The genus Sibogasyrinx has to date included only four species of rare deep-water Conoidea, each known from few specimens. In shell characters it strongly resembles three distantly-related genera, two of which, Comitas and Leucosyrinx, belong to a different family, the Pseudomelatomidae. A molecular phylogenetic analysis of a large amount of material of Conoidea has revealed the existence of much additional undescribed diversity within Sibogasyrinx from the central Indo-Pacific and temperate Northern Pacific. Based on partial sequences of the mitochondrial cox1 gene and morphological characters of 54 specimens, 10 species hypotheses are proposed, of which six are described as new species: S. subula sp. nov., S. lolae sp. nov., S. maximei sp. nov., S. clausura sp. nov., S. pagodiformis sp. nov. and S. elbakyanae Kantor, Puillandre & Bouchet sp. nov. One of the previously described species was absent in our material. Most of the new species are very similar and are compared to Leucosyrinx spp. Species of Sibogasyrinx are unique among Conoidea on account of the high intrageneric variability in radular morphology. Three distinct radula types are found within Sibogasyrinx, two of which are confined to highly supported subclades.

Phytotaxa ◽  
2018 ◽  
Vol 350 (1) ◽  
pp. 1
Author(s):  
RUI-HONG WANG ◽  
MAO-QIN XIA ◽  
JIN-BO TAN ◽  
CHUAN CHEN ◽  
XIN-JIE JIN ◽  
...  

A new species, Scrophularia jinii (Scrophulariaceae), from Central China is described and illustrated. This new species was formerly misidentified as S. fargesii, from which it differs in many morphological characters. Moreover, it is distinct with all known Scrophularia species in its unique deeply double serrate leaf margin with 3–7 big teeth on each side. Molecular phylogenetic analysis further supports its species delimitation and suggests a close relationship with several Japanese and North American species.


Zootaxa ◽  
2019 ◽  
Vol 4571 (1) ◽  
pp. 99
Author(s):  
HONGXIANG HAN ◽  
PEDER SKOU ◽  
RUI CHENG

Neochloroglyphica gen. nov. and its type species N. perbella sp. nov. are described from Yunnan, China. Morphological characters and molecular phylogenetic analysis, based on one mitochondrial and three nuclear genes, support the hypothesis that Neochloroglyphica is a member of the tribe Neohipparchini, and that it is a sister genus to Chloroglyphica. Morphological characters, including those of the genitalia, are figured and compared with related genera, especially Chloroglyphica, Neohipparchus and Chlororithra. Diagnoses for the genus and the species are provided and illustrations of external features and genitalia are presented. 


Phytotaxa ◽  
2018 ◽  
Vol 348 (4) ◽  
pp. 279 ◽  
Author(s):  
ZIA ULLAH ◽  
SANA JABEEN ◽  
HABIB AHMAD ◽  
ABDUL NASIR KHALID

Inocybe pakistanensis is described and illustrated as a new species based on morphological characters and molecular phylogenetic analysis of nuclear ribosomal DNA including the internal transcribed spacer (ITS) regions along with larger subunit (LSU). The distinctive basidiomata have a highly rimose and fibrillose golden brown pileus with a reddish brown, prominent umbo; ellipsoid to amygdaliform, slightly phasoeliform smooth basidiospores; and clamped septa in all the tissues. Molecular phylogenetic analysis supports the placement of I. pakistanensis in section Rimosae s. str.


Phytotaxa ◽  
2015 ◽  
Vol 217 (2) ◽  
pp. 200 ◽  
Author(s):  
RAMACHANDRAN MURALIDHARAN ◽  
DUVURU NARASIMHAN ◽  
NATESAN BALACHANDRAN

The genus Hubera Chaowasku in Chaowasku et al. (2012) was established in accordance with strict monophyly based on a molecular phylogenetic analysis and morphological characters; the component species were previously considered members of the polyphyletic genus Polyalthia Blume s.l. (1830 : 68). Chaowasku, however, later felt that the genus name Hubera was too similar to Huberia DC (1828 : 167; Melastomataceae) and asked the nomenclature committee for vascular plants if it should be treated as a later homonym of Huberia DC. (Chaowasku 2013). His request was accepted by the nomenclature committee for vascular plants (Applequist 2014). Subsequently, Chaowasku replaced the generic name Hubera with a new name Huberantha and also made new combinations for all 27 species of that genus (Chaowasku et al. 2015). A new species that was recently published under Hubera (Muralidharan et al. 2015) is here transferred to Huberantha.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 11-20
Author(s):  
ZOHMANGAIHA CHAWNGTHU ◽  
JOSIAH MC VABEIKHOKHEI ◽  
RITA ZOMUANPUII ◽  
SURAJIT DE MANDAL ◽  
JOHN ZOTHANZAMA

Ophiocordyceps mizoramensisis described as a new species from Mizoram by using a combination of morphological and molecular phylogenetic analysis. The molecular phylogenetic analysis include both the subunits (LSU and SSU), the internal transcribed spacers (ITS1 and ITS2) with the 5.8S gene region, along with Tef (Translation elongation factor). The new species Ophiocordyceps mizoramensis, differs from other closely related species based on molecular phylogenetic relationships, genetic distance, and minor morphological characters related to sexual structures. The entomopathogenic Ophiocordyceps mizoramensis infected the host Polistes olivaceus (paper wasp) causing death to the whole colony of the hive.


Phytotaxa ◽  
2017 ◽  
Vol 329 (3) ◽  
pp. 277 ◽  
Author(s):  
ANDREW S. URQUHART ◽  
PAULINE M. L. COULON ◽  
ALEXANDER IDNURM

Pilaira australis, a new species of fungus in the coprophilous genus Pilaira, was isolated from emu (Dromaius novaehollandiae) faeces and is described. Morphologically, the species resembles other species in the genus, particularly P. moreaui, except differs in its unique combination of sporangiophore height and sporangiospore length. Molecular phylogenetic analysis indicates that P. australis is distinct from other species in the genus with two regions, the internal transcribed spacers (ITS) and a fragment of the pyrG gene, showing 91% and 90% identity to the nearest species, respectively. Ultrastructure features and carbon utilisation were determined for P. australis, and may provide characteristics for species identification in this genus.


Phytotaxa ◽  
2021 ◽  
Vol 512 (3) ◽  
Author(s):  
YU-YANG ZHOU ◽  
YUN-HAO SI ◽  
ZHEN ZHANG ◽  
QIANG WANG ◽  
YAN YU

Codonopsis atriplicifolia (Campanulaceae) from western Sichuan, China, is described here as a new species, which is similar to C. subscaposa in a number of characters. The results of molecular phylogenetic analysis of 25 species of Codonopsis based on chloroplast DNA fragments (matK, petD with petB-petD, rbcL) show that C. atriplicifolia is closely related to C. farreri. In morphology, the new species is distinctly different from the allied species by its linear-lanceolate leaves with subentire to pinnatipartite margins.


ZooKeys ◽  
2021 ◽  
Vol 1038 ◽  
pp. 179-194
Author(s):  
Sota Komeda ◽  
Kenta Adachi ◽  
Susumu Ohtsuka

A new species of the continental shelf hyperbenthic genus Pilarella is described, the first from the Indo-Pacific. This is the second species of Pilarella known, and the first description of a male in the genus. The new species is easily distinguished from other species of Pilarella (P. longicornis) based on: (1) short caudal rami, approximately 1.5 times longer than wide; (2) 2 setae on the mandibular endopod; (3) 6 setae on the maxillular coxal epipodite; and (4) in the female, a short left antennule reaching the posterior border of the genital double-somite. The new diagnosis of Pilarella differs from Metacalanus in the separation of ancestral segments IX–XII and XIV–XV of the antennule, and the presence of 5–6 setae on the maxillular praecoxal arthrite. Pilarella is also separated from Metacalanalis based on the absence of a seta on the third ancestral segment of the antennary exopod, the symmetry of legs 1–3, the presence of a medial basal seta on the female leg 5, and 2 lateral exopodal spines on the female leg 5. A molecular phylogenetic analysis of some representative genera of the family Arietellidae, including the present new species, recovers two arietellid clades (Metacalanus- and Arietellus-clades) as in previous studies. Dichotomous keys for the genera of Arietellidae and the species of Pilarella are included.


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