An Electrophoretic and Morphological Examination of Bothriembyron kendricki (Pulmonata: Bulimulidae), a New Species previously Considered Conspecific with B. bulla (Menke)

1983 ◽  
Vol 31 (2) ◽  
pp. 227 ◽  
Author(s):  
A Hill ◽  
MS Johnson ◽  
H Merrifield
Keyword(s):  
New Species ◽  
Shell Morphology ◽  
Morphological Examination ◽  
A New Species

Bothriembryon bulla (Menke) has previously been thought to include pale and melanic morphs. Studies of morphology and allozymes reveal that the two forms are reproductively isolated. The melanic is herein referred to as B. kendricki, sp. nov. Both species show large amounts of variation among populations for both shell morphology and allozymes, emphasizing the need for comprehensive geographic sampling in studies of the genus Bothriembryon.

A new species of sponge-inhabiting barnacle Neoacasta (Archaeobalanidae, Acastinae) in Kyushu, Japan

Crustaceana ◽  
2020 ◽  
Vol 93 (11-12) ◽  
pp. 1515-1532
Author(s):  
Meng-Chen Yu ◽  
Takefumi Yorisue ◽  
Gregory A. Kolbasov ◽  
Benny K. K. Chan
Keyword(s):  
New Species ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Dna Barcode ◽  
Shell Morphology ◽  
Coi Gene ◽  
Cytochrome C Oxidase I ◽  
Morphological Examination ◽  
A New Species ◽  
I Gene

Abstract This paper describes a new species of sponge-inhabiting barnacle, Neoacasta liui sp. nov., collected in Fukuoka, Kyushu, Japan. In the present study we used both the morphological examination and DNA barcode (cytochrome c oxidase I gene) to distinguish this new species from acastine species including its congeners from Neoacasta Kolbasov, 1993. Neoacasta liui sp. nov. is similar to Neoacasta glans (Lamarck, 1818) in shell morphology, but the divergence in COI gene between them reached inter-specific differences. N. liui sp. nov. is characterized by externally latticed, narrow scutum, beak-shaped tergum with wider spur, and lack of six inwardly prominent teeth on margin of basis. N. glans having an Indo-West Pacific distribution may represent a complex of cryptic species.

scholarly journals Systematic revision of Stegodera Martens, 1876 (Gastropoda, Stylommatophora, Camaenidae), with description of a new genus

ZooKeys ◽  
2021 ◽  
Vol 1059 ◽  
pp. 1-21
Author(s):  
Zhe-Yu Chen ◽  
Zhi-Tong Lyu ◽  
Min Wu
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Shell Morphology ◽  
Monotypic Genus ◽  
Morphological Examination ◽  
Systematic Revision ◽  
Molecular Phylogenetic ◽  
Southern Hunan ◽  
A New Species

The monotypic genus Stegodera Martens, 1876 is systematically revised based on anatomical and morphological examination of freshly collected specimens. A new species from southern Hunan, which resembles Stegodera angusticollis, is confirmed to represent a new genus evidenced by comparative shell morphology and anatomy as well as by molecular phylogenetic analyses. The new genus might be more closely related to Stegodera and Nesiohelix Kuroda & Emura, but differs anatomically from the latter two genera by the absence of a dart apparatus.

A new species of the genus Rapturella (Gastropoda: Acteonidae) from southeast Brazil

Zootaxa ◽  
2018 ◽  
Vol 4521 (1) ◽  
pp. 125 ◽  
Author(s):  
CARLO M. CUNHA ◽  
LUIZ RICARDO L. SIMONE
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Deep Water ◽  
Shell Morphology ◽  
Southwest Pacific ◽  
Southeast Brazil ◽  
Pacific Waters ◽  
A New Species ◽  
High Diversity

Acteonidae d'Orbigny, 1843 is the largest family within the superfamily Acteonoidea (Bouchet et al. 2017) and includes small gastropods typical of infralittoral environments. Most acteonids living on the continental shelf or in deep water have been described on the basis of shell morphology alone (Simone 2006; Valdés 2008; Cunha 2011; Salvador & Cunha 2016), because little material with soft parts has been collected and examined. Consequently, little is known about the ecology of the species.  Recently, many new species of the genus Acteon Montfort, 1810 have been described from tropical Southwest Pacific waters (Valdés 2008), suggesting that a high diversity of acteonid species may await discovery in other deep water environments, including those of Brazil. 

scholarly journals A new species of Arene (Vetigastropoda, Areneidae) from Canopus Bank, off NE Brazil

2018 ◽  
Vol 58 ◽  
pp. 23
Author(s):  
Daniel Caracanhas Cavallari ◽  
Luiz Ricardo Lopes de Simone
Keyword(s):  
New Species ◽  
Large Scale ◽  
Shell Morphology ◽  
Shell Color ◽  
A New Species ◽  
Axial Growth

Arene lychee sp. nov. is described from Canopus Bank, a seamount located ~190 km off Fortaleza, Ceará, NE Brazil (02°14’25”S, 38°22’50”W), based on shell morphology. The species is characterized by a large, trochiform shell; color ranging from intense reddish to white (darker on spiral cords, lighter at base) with a yellow apex; sculpture of 3‑8 wide spiral cords with large scale-like spines; cords separated by deep interspaces with similar width, and interspaces sculptured by closely-packed, thin axial growth lines.

Exploring high-mountain limnic faunas: discovery of a novel endemic bivalve species (Sphaeriidae : Pisidium) in the Nepal Himalayas

2016 ◽  
Vol 30 (6) ◽  
pp. 588 ◽  
Author(s):  
Ulrich Bößneck ◽  
Catharina Clewing ◽  
Christian Albrecht
Keyword(s):  
New Species ◽  
Molecular Phylogenetics ◽  
Nuclear Data ◽  
Elevational Gradient ◽  
Shell Morphology ◽  
High Mountain ◽  
Mountain Range ◽  
Field Surveys ◽  
The Past ◽  
A New Species

High-mountain regions are known to harbour considerable biodiversity, although it is not all well known. The terrestrial fauna of the world’s largest mountain range, the Himalayas, has been moderately well studied, but this is not the case with the limnic fauna, and especially molluscs. During intensive malacozoological field surveys conducted over the past 20 years, the bivalve family Sphaeriidae has been studied in Nepal along an elevational gradient from 100 to 4010 m above sea level (a.s.l.). Here we describe a new species of Sphaeriidae, Pisidium alexeii, sp. nov., based on comprehensive molecular phylogenetics, anatomy and shell morphology. The species can be clearly distinguished from all other sphaeriid species occurring in Nepal. A molecular phylogeny based on mitochondrial and nuclear data inferred the oriental biogeographical affinity of the new species. The species is ecologically restricted and only occurs at a few sites between 1010 and 1700 m a.s.l. A review and updated checklist of the sphaeriid fauna of Nepal is provided and biodiversity and biogeographical patterns are discussed.

The genus Phillipsia from China and Thailand

Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 138 ◽  
Author(s):  
ANUSHA H. EKANAYAKA ◽  
D. J. BHAT ◽  
KEVIN D. HYDE ◽  
E. B. GARETH JONES ◽  
QI ZHAO
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Examination ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
A New Species

The genus Phillipsia (Sarcoscyphaceae) is characterized by large, bright-coloured, sub-stipitate apothecia, sub-operculate asci and asymmetrical ascospores with longitudinal striations. Morphological and phylogenetic studies were carried out on new collections of Phillipsia from China and Thailand. Phillipsia subpurpurea are recorded from China and Phillipsia gelatinosa from Thailand is introduced as a new species to science. Our new collections are confirmed to be divergent from other species of Phillipsia based on morphological examination and molecular phylogenetic analyses of ITS and LSU sequence data. Descriptions and figures are provided for the taxa which are also compared with allied taxa.

Salvia rhizomatosa (Lamiaceae) a new species from Sierra Madre Occidental in Durango, Mexico, with a synopsis of Salvia sect. Brandegeia

Phytotaxa ◽  
2020 ◽  
Vol 434 (3) ◽  
pp. 255-269
Author(s):  
JESÚS GUADALUPE GONZÁLEZ-GALLEGOS ◽  
ARTURO CASTRO-CASTRO ◽  
HERIBERTO ÁVILA-GONZÁLEZ
Keyword(s):  
New Species ◽  
Distinct Species ◽  
Identification Key ◽  
Central Mexico ◽  
New Taxon ◽  
Distribution Map ◽  
Morphological Examination ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
A New Species

Recent botanical explorations in Sierra Madre Occidental in Durango, Mexico, led to the discovery of a new species which according to its morphology belongs to Salvia sect. Brandegeia. The new taxon is morphologically most similar to S. oresbia from central Mexico, against which it is thoroughly compared. Additionally, it is presented a synopsis of the section in order to provide updated and standardized descriptions for those species known only in base to their protologues, which allows a more detailed and precise comparison in respect to the new species. The morphological examination of the species in the section also revealed that the recognition of S. sharpii as a distinct species from S. blepharophylla is not justified; consequently, it is reduced to synonymy. An identification key, a distribution map, photographs, and a drawing of the new species are also presented.

Revision of several poorly known Antarctic aeolid nudibranch species (Mollusca: Gastropoda), with the description of a new species

2011 ◽  
Vol 92 (5) ◽  
pp. 1161-1174 ◽  
Author(s):  
Ángel Valdés ◽  
Amy L. Moran ◽  
H. Arthur Woods
Keyword(s):  
New Species ◽  
Embryonic Development ◽  
Ross Sea ◽  
Egg Mass ◽  
Morphological Examination ◽  
Antarctic Species ◽  
External Appearance ◽  
Reproductive Anatomy ◽  
First Time ◽  
A New Species

Morphological examination of several specimens of aeolid nudibranchs collected from the Ross Sea, Antarctica, revealed an unexpectedly high number of species. Based on the collected material the following species are re-described and for the first time their colour, reproductive anatomy and radula are illustrated together: Eubranchus glacialis, Cuthona modesta, Cuthona crinita, Cuthona elioti and Guyvalvoria paradoxa. Additionally, a new species of Cuthona is described from this area. The new species differs from other Antarctic and sub-Antarctic species of Cuthona in its external appearance, radular morphology and reproductive anatomy. Information on the egg mass and embryonic development of several species is provided.

scholarly journals Salvia gomezpompae (Lamiaceae), a new species from Veracruz, Mexico

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Jesús Guadalupe González-Gallegos ◽  
Brenda Yudith Bedolla García ◽  
Rolando Uría
Keyword(s):  
New Species ◽  
Leaf Shape ◽  
Morphological Characters ◽  
Similar Species ◽  
Morphological Examination ◽  
Standard Procedures ◽  
Vegetative Characters ◽  
Floral Characters ◽  
Comparative Examination ◽  
A New Species

Background: During a prospecting revision of Salvia collections at IEB, MEXU and XAL herbaria for Flora of Veracruz, undetermined specimens, or misidentified either as S. nana or S. prunelloides, not referable to any known species were identified. Hypotheses: The morphological characters of these specimens match with those of Salvia subg. Calosphace sect. Farinaceae and support them as an undescribed species. Taxon: Lamiaceae, Salvia sp. nov. Study site: Central portion of the state of Veracruz. Methods: Botanical explorations were conducted in the two general areas in which the putative new species has been recorded, new specimens were collected and prepared according to standard procedures. A thorough morphological examination was applied, and the hypothesis was tested contrasting the evidence against specialized taxonomic literature and specimens of the most similar species. Results: Salvia sp. nov. is vegetatively almost identical to S. nana but lacks the diagnostic floral characters defining the group to which this species belongs, sect. Uliginosae. Floral characters rather match those of sect. Farinaceae, to which is assigned; between the species of this section, it is most similar to S. oblongifolia but clearly differs by vegetative characters (petiole length, absence of axillary leaves, leaf shape, size, pubescence and texture, as well as by having thickened veins). Conclusions: Morphological and comparative examination contrasting with the species of Salvia justifies the recognition of a new Salvia species, which is here named as Salvia gomezpompae and properly described.

A new Givetian athyridid species from northwest Africa discovered by three-dimensional reconstruction of shell morphology of internal molds

2014 ◽  
Vol 88 (4) ◽  
pp. 708-718 ◽  
Author(s):  
Mena Schemm-Gregory
Keyword(s):  
New Species ◽  
Three Dimensional ◽  
Shell Morphology ◽  
Serial Sections ◽  
Three Dimensional Reconstruction ◽  
Ct Scanner ◽  
Faunal Assemblage ◽  
Northwest Africa ◽  
Dimensional Reconstruction ◽  
A New Species

A new method of analyzing the internal shell morphology (including the complete brachidium of internal molds) of articulated brachiopod shells through the use of serial sections and digital three-dimensional reconstruction is presented. The method introduced is essential for the study of internal shell structures such as brachidia, or cardinalia, if computed tomography (CT) is not suitable or if a CT scanner is not available. A new species ofAthyrisfrom Givetian beds of Northwest Africa was selected to exemplify this method. To compare this species with figured serial sections in the literature, two-dimensional drawings of grinding surfaces are provided.Athyris africanan. sp. is only preserved as internal molds of articulated specimens. The new species is included in the evolutionary lineage of the group aroundAthyris concentrica. The faunal assemblage ofA. africanan. sp. shows affinities to Western European and North American brachiopod faunas.

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