Croton lindquistii (Euphorbiaceae): a new arborescent species from western Mexico

Phytotaxa ◽  
2014 ◽  
Vol 166 (3) ◽  
pp. 235 ◽  
Author(s):  
VICTOR W. STEINMANN
Keyword(s):  
New Species ◽  
Deciduous Forests ◽  
Agricultural Fields ◽  
Western Mexico ◽  
The Past ◽  
Tropical Deciduous Forests ◽  
A New Species

Croton lindquistii, a new species in Croton subg. Geiseleria sect. Eluteria subsect. Eluteria, is described and illustrated. It occurs in the tropical deciduous forests of western Mexico from Sonora to Oaxaca. The species is economically important, and during the past four decades, plants have been extensively harvested for their straight, hard, and durable trunks that are used as fence posts and stakes in agricultural fields. Although the exact affinities of C. lindquistii are unknown, it is similar to both C. niveus and C. pseudoniveus. It differs from the former by having ovate to cordiform leaves, fruiting pedicels less than 3 mm long, and spiciform thyrses that are very compact with the axis obscured by the buds. It differs from the latter by having 15–16 stamens per flower and stellate-pubescent ovaries and fruits. The name Croton fantzianus has been misapplied to Croton lindquistii. A key is provided that distinguishes the new species from the five other members of Croton sect. Eluteria subsect. Eluteria that have ovaries and fruits with stellate pubescence.

Beaucarnea olsonii (Ruscaceae), a new species of ponytail palm from southwestern Puebla, Mexico

Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Conservation Status ◽  
Deciduous Forests ◽  
Central Mexico ◽  
Distribution Map ◽  
Southern Central ◽  
Tropical Deciduous Forests ◽  
A New Species

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.

scholarly journals The genus Cletocamptus (Harpacticoida, Canthocamptidae): a reappraisal, with proposal of a new subfamily, a new genus, and a new species

ZooKeys ◽  
2022 ◽  
Vol 1080 ◽  
pp. 165-208
Author(s):  
Samuel Gómez ◽  
Beatriz Yáñez-Rivera
Keyword(s):  
New Species ◽  
The Body ◽  
Estuarine System ◽  
Western Mexico ◽  
The Past ◽  
Incertae Sedis ◽  
Mandibular Palp ◽  
North Western ◽  
A New Species ◽  
Swimming Leg

A new species of Cletocamptus closely related to C. helobius was found in sediment samples taken from a polluted estuarine system in north-western Mexico. The genus Cletocamptus was relegated to species incertae sedis in 1986, and this finding prompted us to evaluate the current taxonomic position of the genus within the Canthocamptidae. The latter has been subdivided in several, seemingly unnatural subfamilies in the past to better understand the relationships between its constituent taxa. In this study we propose a new subfamily, the Cletocamptinaesubfam. nov. for Amphibiperita, Cletocamptus, and Cletocamptoides gen. nov., defined by the synapomorphic subdistal ventral spinules on the rostrum. The genus Cletocamptoidesgen. nov. is proposed for C. helobius, C. merbokensis, and C. biushelosp. nov., and is supported by the ‘cletodid’ shape of the body and the reduced one-segmented endopod of the fourth swimming leg. Cletocamptus includes all the other species with long slender spinules on the posterior margin of prosomites and with the sexually modified inner spine on the second endopodal segment of the second swimming leg in the males. Amphibiperita retained the primitive female fifth leg with exopod and baseoendopod separated, and the primitive prehensile endopod of the first leg, but is defined by the loss of the antennary exopod. Other (syn)apomorphies are given, and the evolution of the mandibular palp is briefly discussed. Additionally, a diagnosis for the new subfamily, Cletocamptinaesubfam. nov., an amended narrower diagnosis for Cletocamptus, the diagnosis for Cletocamptoidesgen. nov., and a phylogenetic analysis supporting the proposal of these new taxa, are given.

Prionosciadium guzmanianum (Apiaceae, Apioideae), a new species with red flowers from western Mexico

2021 ◽  
Vol 39 (6) ◽  
Author(s):  
Ramón Cuevas‐Guzmán ◽  
Ana Patricia del Castillo‐Batista ◽  
José Guadalupe Morales‐Arias
Keyword(s):  
New Species ◽  
Western Mexico ◽  
A New Species

Description of a new species of Bush frog (Anura: Rhacophoridae: Raorchestes) from northwestern Yunnan, China

Zootaxa ◽  
2021 ◽  
Vol 4941 (2) ◽  
pp. 239-258
Author(s):  
YUN-HE WU ◽  
XIAO-LONG LIU ◽  
WEI GAO ◽  
YU-FAN WANG ◽  
YING-CHUN LI ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Field Work ◽  
The Body ◽  
Adult Males ◽  
The Past ◽  
Black Region ◽  
One New Species ◽  
A New Species ◽  
Northwestern Yunnan

Approximately half of the species in speciose genus Raorchestes were described during the past 10 years, yet only 11 species are known from Southeast Asia and southern China (SEA-SC), adjacent Himalayas, and northeastern India. Field work in northwestern Yunnan province, China resulted in the discovery of one new species in the genus based on morphological and molecular analyses. The new species is diagnosed by small size with 15.0–19.0 mm SVL in adult males (n=3); tongue pyriform, notched posteriorly; rudimentary webbing between toes; fingers and toes with narrow lateral dermal fringes; tibiotarsal articulation reaching anterior of the eye when hindlimb is stretched along the side of the body; relative finger lengths: I < II < IV < III, relative toe lengths: I < II < V < III < IV; inner metatarsal tubercle oval, outer metatarsal tubercle absent; finger discs and toe discs greyish or orange; flank near the crotch with a distinct black region between two creamy white patches, and the thigh having a similar black patch near the groin, proximal to another creamy white patch; a distinct “) (”-shaped dark marking on the back; male with external single subgular vocal sac; nuptial pad absent. A phylogenetic tree was reconstructed based on the mitochondrial genes for 16S rRNA and ND1. The results indicated that these individuals form a monophyletic group, and show high genetic divergence to their closest relatives within the genus (uncorrected p-distances > 3.2%) by distance of 16S comparable to the divergence between recognized Raorchestes species. This study further enriches the diversity of rhacophorids, especially in northwestern Yunnan. 

Phyllagathis stellata (Sonerileae, Melastomataceae), a new species from southwestern Sarawak, Borneo

Phytotaxa ◽  
2018 ◽  
Vol 365 (3) ◽  
pp. 295
Author(s):  
CHE-WEI LIN ◽  
CHI-HUNG LEE
Keyword(s):  
New Species ◽  
Similar Species ◽  
Distribution Map ◽  
Line Drawings ◽  
The Past ◽  
A New Species

Reknowned for its high biodiversity and endemism, over one third of the Bornean species of Phyllagathis were discovered in Sarawak over the past two years. In this study, we report an addition of a new species of Phyllagathis, namely P. stellata from southwestern Sarawak. In addition to the taxonomic account, color plates, line drawings, a distribution map, and comparisons with morphologically similar species are provided to aid in identification.

Allotoca maculata, a New Species of Goodeid Fish from Western México, with Comments on Allotoca dugesi

Copeia ◽  
1980 ◽  
Vol 1980 (3) ◽  
pp. 408 ◽  
Author(s):  
Michael Leonard Smith ◽  
Robert Rush Miller
Keyword(s):  
New Species ◽  
Western Mexico ◽  
A New Species

Agave manantlanicola (Agavaceae), a new species from western Mexico

Brittonia ◽  
2012 ◽  
Vol 64 (3) ◽  
pp. 330-335 ◽  
Author(s):  
Ramón Cuevas Guzmán ◽  
Francisco J. Santana-Michel ◽  
Oscar Balcazar-Medina
Keyword(s):  
New Species ◽  
Western Mexico ◽  
A New Species

The tale of the headless turtle

Zootaxa ◽  
2016 ◽  
Vol 4200 (2) ◽  
pp. 327 ◽  
Author(s):  
PEDRO S. R. ROMANO
Keyword(s):  
New Species ◽  
Phenotypic Plasticity ◽  
Lower Cretaceous ◽  
Fossil Record ◽  
Diagnostic Features ◽  
Fossil Species ◽  
The Past ◽  
Early Paleocene ◽  
Phylogenetic Hypotheses ◽  
A New Species

Pelomedusoides is the most diverse clade of side-necked turtles and there is an extensive fossil record (de Broin, 1988; Lapparent de Broin, 2000; Gaffney et al., 2006, 2011) that dates back at least to the Barremian (Lower Cretaceous) (Romano et al., 2014). Its large fossil record evidences a greater diversity in the past, particularly at the end of the Mesozoic, and exhibits a good sampling of species that are represented by skull material (Gaffney et al., 2006, 2011). As a consequence, the most complete and recent phylogenetic hypotheses for this clade (e.g. Romano et al., 2014; Cadena, 2015) are based on matrices comprising a great amount of cranial characters derived largely from Gaffney et al. (2006, 2011). In addition, it is well established that shell characters show a lot of phenotypic plasticity, even in the fossil species (Romano, 2008; Gaffney et al., 2006, 2011). In most cases it consequently is not justified to rely on “diagnostic features” of poorly informative shell-only material for describing a new species. Because of that, most authors remark new morphotypes in the literature when such aberrant specimens are recovered, but do not make any nomenclatural act by proposing a new yet poorly supported species (e.g. Romano et al., 2013; Ferreira & Langer, 2013; Menegazzo et al., 2015). Unfortunately, such a supposedly new bothremydid turtle (Pleurodira: Bothremydidae) from the Early Paleocene of Brazil was recently described based on poorly diagnostic remains (Carvalho et al., 2016; hereafter CGB, for the authors initials) and a correction of this unfounded nomenclatural act is required. In addition I present some comments on shell only material from Brazil in order to guide splitter-taxonomists to stop describing poorly preserved fossil specimens as new species. 

scholarly journals A new species of Potamonautes from São Tomé Island, Central Africa, with redescriptions of P. margaritarius (A. Milne-Edwards, 1869) from São Tomé, and P. principe Cumberlidge, Clark and Baillie, 2002, from Príncipe (Decapoda: Potamonautidae)

2018 ◽  
Vol 87 (4) ◽  
pp. 287-303
Author(s):  
Neil Cumberlidge ◽  
Savel R. Daniels
Keyword(s):  
New Species ◽  
Central Africa ◽  
Distinct Species ◽  
Gulf Of Guinea ◽  
Adult Males ◽  
Island Endemic ◽  
The Past ◽  
Freshwater Crabs ◽  
First Time ◽  
A New Species

Surveys of the freshwater crabs of two islands in the Gulf of Guinea, Central Africa, allowed a revision of the taxonomy of two little-known island endemic species, based for the first time on adult males: Potamonautes margaritarius (A. Milne-Edwards, 1869) from São Tomé, and of P. principe Cumberlidge, Clark and Baillie, 2002, from Príncipe (Brachyura; Potamonautidae). A new species of Potamonautes from southern São Tomé (Potamonautes saotome sp. nov.) is also described that is genetically distinct and has a clearly separate geographic distribution from P. margaritarius from northern São Tomé. The new species from southern São Tomé can be recognized by a suite of characters of the carapace, thoracic sternum, and gonopods. The taxonomy of P. margaritarius (A. Milne-Edwards, 1869) is stabilized by selecting a neotype from northern São Tomé. Potamonautes principe from Príncipe is the most distinct of the three taxa, with a more swollen carapace that has smooth anterolateral margins, and a shorter, straighter male first gonopod. All three taxa are morphologically distinct species that have also been clearly distinguished as evolutionarily separate lineages by mtDNA analysis and haplotyping in an earlier study. Previous phylogenetic evidence supports two separate island colonization events at different times in the past from different ancestral populations, one to São Tomé and another to Príncipe that resulted in the establishment of the endemic freshwater crab faunas of these two islands.

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