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.

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. 

Second representative of the order Misophrioida (Crustacea, Copepoda) from Australia challenges the hypothesis of the Tethyan origin of some anchialine faunas

Zootaxa ◽  
2009 ◽  
Vol 2059 (1) ◽  
pp. 51-68 ◽  
Author(s):  
TOMISLAV KARANOVIC ◽  
STEFAN M. EBERHARD
Keyword(s):  
New Species ◽  
Western Australia ◽  
Apical Seta ◽  
Aquatic Fauna ◽  
The North ◽  
Ecological Implications ◽  
Coastal Margin ◽  
North Western ◽  
A New Species ◽  
Swimming Leg

A new species of the genus Speleophria is described from a cave in the Nullarbor region in southern Western Australia. Its congeners include species from the Balearics, Croatia, Bermuda, Yucatan peninsula and north-western Western Australia, all considered to be Tethyan relicts. However, the discovery of the new speleophriid in the Nullarbor region has important biogeographic and ecological implications. From the biogeographic perspective, it either suggests dispersal as the process determining the current distribution pattern of the aquatic fauna found on the Roe Plains or significantly extends the Tethyan track across Australia, from the north-western coastal margin of the continent to the southern coastal margin. From an ecologic perspective, the new speleophriid suggests the possible existence of anchialine habitats in southern Australia. Speleophria nullarborensis sp. nov. can be distinguished from its four congeners by its plesiomorphic 3-segmented endopod of the first swimming leg (2-segmented in other species) and unusually long innermost apical seta on the caudal ramus. Another character that easily distinguishes our new species, and seems to be an autapomorphic feature, is its constricted preanal somite.

A new species of Robertgurneya Apostolov & Marinov, 1988, with an illustrated record of R. rostrata (Gurney, 1927), an amended genus diagnosis and comments on R. soyeri (Apostolov, 1974) and R. spinulosa (Sars, 1911) (Harpacticoida: Miraciidae)

Zootaxa ◽  
2020 ◽  
Vol 4861 (4) ◽  
pp. 451-485
Author(s):  
SAMUEL GÓMEZ
Keyword(s):  
New Species ◽  
New Genus ◽  
Organic Pollution ◽  
Coastal System ◽  
New Mexican ◽  
Western Mexico ◽  
The Family ◽  
Mexican Species ◽  
North Western ◽  
A New Species

Quarterly sampling campaigns were carried out during year 2019 to study the effects of organic pollution on the diversity and abundance of meiofauna from a polluted coastal system in north-western Mexico. Amongst harpacticoids, the family Miraciidae Dana 1846 was by far the most abundant and diverse, and several new species and the proposal of some new genera of Stenheliinae Brady 1880 and Diosaccinae Sars 1906 will be published elsewhere. Amongst the Diosaccinae, the genus Robertgurneya Apostolov & Marinov 1988 was one of the most abundant. This genus was proposed and diagnosed by Lang (1944, 1948) but after a complex taxonomical history, was made available by Apostolov & Marinov (1988) who proposed an amended diagnosis and designated R. similis similis (Scott A. 1896) as the type species of the genus. Here I propose a new species, Robertgurneya mexicana sp. nov., and give a fully illustrated record of the widely distributed R. rostrata (Gurney 1927). The relationships amongst the species of Robertgurneya are not clear, but the new Mexican species shares with R. falklandiensis (Lang 1936) the elongated inner dimorphic spine on the basis of the male P1. Additionally, a new amended diagnosis for the genus Robertgurneya, as well as the reallocation of R. soyeri (Apostolov 1974) into Typhlamphiascus Lang 1944, and the creation of a new genus, Robertgurneyella gen. nov., for R. spinulosa (Sars 1911) are proposed. 

Re-definition of the genus Javanisomysis Băcescu, 1992 as a subgenus in the genus Anisomysis Hansen, 1910 (Mysida, Mysidae) and a new species of the subgenus from coastal waters in Phuket, Thailand

Crustaceana ◽  
2015 ◽  
Vol 88 (7-8) ◽  
pp. 809-838 ◽  
Author(s):  
Shozo Sawamoto ◽  
Khwanruan Srinui ◽  
Mitsuyasu Moriya
Keyword(s):  
New Species ◽  
Coastal Waters ◽  
Morphological Characteristics ◽  
The Body ◽  
Lateral Margin ◽  
The Third ◽  
Mandibular Palp ◽  
Characteristic Species ◽  
Definition Of ◽  
A New Species

Anisomysis (Javanisomysis) gutzui Băcescu, 1992 was reported as a characteristic species, of which the fourth male pleopod possesses an un-segmented exopod and no endopod. The species is placed in the valid genus Javanisomysis on the basis of the characteristics of the fourth male pleopod; however, the definition of the genus was insufficient. In the present paper, re-examination of the genus Javanisomysis is carried out on the basis of paratypes loaned from the depository in Romania. We found that major morphological characteristics of the types are common to those of the species of the genus Anisomysis, particularly in the forms of the antennal scale, labrum, thoracopodal endopods, and fourth male pleopod. On the basis of the present results, the genus Javanisomysis is reinstated as a subgenus in the genus Anisomysis. The subgenus Javanisomysis is allied to the subgenus Anisomysis in the forms of the body, eye, antennular peduncle, and mandibular palp, but is separable in the following characteristics: carapace armed with spinules on the antero-lateral margin; in the fourth male pleopodal exopod the first segment as long as or slightly shorter than the third segment, excluding the terminal setae; and the telson with un-articulated denticles on the lateral margin. In addition, A. (J.) similis n. sp. is described on the basis of specimens collected from Phuket, Thailand. The new species can be separated from A. (J.) gutzui as follows: the fourth male pleopod without a projection at the expanded corner on the first segment, the telson distally triangular in shape, and an undivided carpopropodus of the sixth thoracopodal endopod in females. Anisomysis (A.) thurneysseni Nouvel, 1973 also shares with the new species such remarkable features as those in the spinules on the carapace, denticles on the telson, and the length of the first segment relative to the third one in the fourth male pleopodal exopod; and accordingly this species is also considered to be a member of the subgenus Javanisomysis. This subgenus thus currently contains three species, A. (J.) gutzui Băcescu, 1992, A. (J.) similis n. sp. and A. (J.) thurneysseni Nouvel, 1973.

scholarly journals A new and showy species of Lepanthes (Orchidaceae: Pleurothallidinae) from North-Western Ecuador

Lankesteriana ◽  
2019 ◽  
Author(s):  
Luis E. Baquero ◽  
Tatiana Jaramillo-Vivanco ◽  
Denisse Galarza Verkovitch
Keyword(s):  
New Species ◽  
Cloud Forest ◽  
The Body ◽  
North Western ◽  
A New Species

A new species of Lepanthes from north-western Ecuador is presented here. Lepanthes mashpica is similar to L. satyrica, with a long, descending, triangular process of the body of the lip but different in the simple and acute appendix versus the vertically bilobed appendix of L. satyrica. The species was found growing in several locations of Mashpi Reserve, a low-land cloud forest close to Quito.   Keywords: Ecuadorean orchids, Lepanthes mashpica, Lepanthes satyrica, Mashpi Reserve

Halice hesmonectes, a new species of pardaliscid amphipod (Crustacea, Peracarida) from hydrothermal vents in the eastern Pacific

1993 ◽  
Vol 71 (9) ◽  
pp. 1724-1732 ◽  
Author(s):  
Joel W. Martin ◽  
Scott C. France ◽  
Cindy Lee Van Dover
Keyword(s):  
New Species ◽  
Low Temperature ◽  
Hydrothermal Vents ◽  
The Body ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Short Article ◽  
The Family ◽  
Mandibular Palp ◽  
A New Species

A new species of the pardaliscid amphipod genus Halice, H. hesmonectes, is described from hydrothermal vents in the eastern Pacific Ocean. The species occurs in large monospecific swarms in the immediate vicinity of low temperature vent openings. Halice hesmonectes differs from other members of the genus in having the following combination of characters: extremely long pereopods 5–7 (exceeding length of pereon, and nearly twice the length of pereopods 1–4); minute dactylus on pereopods 3 and 4, unique, constricted at midlength; pleopods well developed, as long or longer than pereopods 1–4; telson cleft along approximately two-thirds its length and terminating in an acute tip on each lobe; short article 3 (about 1/3 length of article 2) on mandibular palp; and accessory flagellum of first antenna with only two articles, the distal one being approximately 1/6 the length of the proximal. In addition, the body and virtually all appendages are covered by minute cuticular scales, probably present also on other pardaliscids (visible only via SEM) and known from other peracarids. Problematic taxonomy within the family Pardaliscidae is discussed.

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.

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

scholarly journals Discovery of the freshwater sponge genus Corvospongilla Annandale (Porifera: Spongillida) in Australia with the description of a new species and phylogeographic implications

Limnology ◽  
2021 ◽  
Author(s):  
Renata Manconi ◽  
Dirk Erpenbeck ◽  
Jane Fromont ◽  
Gert Wörheide ◽  
Roberto Pronzato
Keyword(s):  
New Species ◽  
Morphological Traits ◽  
Freshwater Sponge ◽  
Freshwater Sponges ◽  
Molecular Analyses ◽  
Biogeographic Patterns ◽  
Hydrographic Basin ◽  
Integrative Systematics ◽  
North Western ◽  
A New Species

AbstractA recent discovery of freshwater sponges in an unexplored hydrographic basin in north-western Australia provided the opportunity to investigate the genus Corvospongilla Annandale (Spongillida: Spongillidae) using integrative systematics. Emendation of the genus diagnosis is provided. A comparative analysis of a Corvospongilla global dataset of morphological traits together with biogeographic patterns disclosed a new Australasian Corvospongilla species and along with molecular analyses provided the basis for a phylogenetic and phylogeographic tree for some Asian, Afrotropical and Australasian lineages.

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