Biogeographical and ecological insights from Australasian faunas: the megadiverse collembolan genus, Entomobrya (Entomobryidae)

Zootaxa ◽  
2020 ◽  
Vol 4770 (1) ◽  
pp. 1-104
Author(s):  
RAFAEL JORDANA ◽  
PENELOPE GREENSLADE

Originally the genus Entomobrya (Collembola: Entomobryidae) comprised 25 species names in Australia including 7 subspecies of which 13 were exotic (50%) and the rest native. All native species had been either described by H. Schött or H. Womersley and had not been examined since 1942. Specific characters they used were few, mainly colour pattern and gross morphological features such as unguis, unguis teeth and mucronal form. Chaetotaxic characters have now been developed. We now here recognise 47 species of Australian Entomobrya and Hymalanura based on a large collection made over 50 years. Six species (12%) are now recognised as introduced, 37 are new and three unresolved because of lack of specimens in good condition. Detailed descriptions and figures are supplied. Several new species are short-range endemics of conservation significance, others are specialised as to habitat, but most are widespread. Entomobrya is now the most species rich genus of Australian Collembola. A phylogenetic tree based on morphological and biological characters revealed clusters of exotic and montane habitat specialists, indicating that the genus is paraphyletic and so confirms other authors’ work based on molecular characters. A key is supplied to Australian genera of Entomobryomorpha. A new genus record, Himalanura, is recognised extending its range to the Southern Hemisphere and 5,000 km further southeast. 

Author(s):  
Mary L. Cole

Chondrocyclus Ancey, 1898 is a genus of nine species of African operculate land snails restricted to indigenous forest and mesic thicket. Worn specimens (i.e., without a periostracum or operculum), on which some species descriptions and records were based, appear to be indistinguishable morphologically. A comprehensive revision of Chondrocyclus s.l. is provided here based on comparative morphological examinations of the shell, protoconch, periostracum, operculum, radula and penis, and on mitochondrial genes cytochrome c oxidase subunit I and 16S rRNA. Two genus-level lineages are recognised, Chondrocyclus s.s. and Afrocyclus gen. nov. Revised species descriptions are given for seven species. Two species, C. meredithae Bruggen, 1983 and C. chirindae Bruggen, 1986 both from north of South Africa, are removed from Chondrocyclus. Twelve new species are described: C. herberti sp. nov., C. silvicolus sp. nov., C. amathole sp. nov., C. pondoensis sp. nov., C. devilliersi sp. nov., C. pulcherrimus sp. nov., C. cooperae sp. nov., C. langebergensis sp. nov., C. kevincolei sp. nov., A. oxygala gen. et sp. nov., A. potteri gen. et sp. nov. and A. bhaca gen. et sp. nov. This is the first detailed systematic revision of an Afrotropical cyclophorid group to include morphological and molecular data. This study complements research on other taxa of low-vagility forest-dwelling habitat specialists by providing comparative distribution data for an independent, widespread group. Such evidence is urgently needed for conservation of South Africa’s threatened forest biome.


2018 ◽  
Vol 1 ◽  
Author(s):  
Ivanklin Soares Campos-Filho ◽  
Camile Fernandes ◽  
Maria Elina Bichuette ◽  
José Otávio Aguiar ◽  
Stefano Taiti

Terrestrial isopods (Oniscidea) comprise more than 3,700 species distributed in almost all types of the terrestrial habitats, including caves. About 300 troglobiotic species are known, mostly in the northern hemisphere. In South America, Brazil has the highest number of recorded caves, approximately 15,000 (7% of the total estimated, ca. 100,000). Currently, 37 species of terrestrial isopods are known from Brazilian caves, 15 of which are considered troglobiotic. A large collection of terrestrial isopods from caves of the Brazilian states of Pará, Sergipe, Bahia, Minas Gerais, Goiás, São Paulo, Mato Grosso, Mato Grosso do Sul, and Paraná has been examined. Fifty-three species are recognized in the families Styloniscidae (3 genera, 4 species), Rhyscotidae (1 genus, 1 species), Philosciidae (6 genera, 11 species), Scleropactidae (3 genera, 4 species), Platyarthridae (2 genera, 14 species), Dubioniscidae (2 genera, 12 species), Armadillidae (4 genera, 5 species), Porcellionidae (1 genus, 1 species), and Armadillidiidae (1 genus, 1 species). Eight species can be considered troglobiotic in the genera Xangoniscus (2 spp.) (Styloniscidae), Alboscia (1 spp.), Atlantoscia (1 spp.) and Benthana (1 spp.) (Philosciidae), Amazoniscus (1 spp.) and Microsphaeroniscus (1 spp.) (Scleropactidae), and one new genus with two new species of Platyarthridae. A second species of the genus Pectenoniscus (Styloniscidae), a new genus of a spiny Armadillidae with two new species are described, the poorly known Venezillo congener is re-described, and many species have their recorded distributions extended. The total number of cave-dwelling species in Brazil is still far to be complete. It is very important to increase research on cave biodiversity which is threatened by anthropic actions (e.g., monocultures and mining), and to define conservation strategies according to the current legislation.


Zootaxa ◽  
2008 ◽  
Vol 1682 (1) ◽  
pp. 33 ◽  
Author(s):  
E ZHANG ◽  
XIN QIANG ◽  
JIA-HU LAN

A new genus and two new species are described from the Pearl River drainage in Guangxi Province, South China. Hongshuia, new genus, can be distinguished from all other Asian genera of the Labeonini by having a lower lip with its median lobe modified into a round, fleshy plate peripherally greatly protruded so as to form a ring-like fold that is posteromedially continuous with the mental region, and centrally sunken so as to form a round, flat, fleshy pad. This genus is distinct from all other Asian labeonine genera of the Garrina except for one newly described species of Parasinilabeo (P. longibarbus), Pseudocrossocheilus, and Sinocrossocheilus, in the presence of well-developed maxillary barbels. Hongshuia differs from the above three genera in the lower lip morphology, and further from both Pseudocrossocheilus and Qianlabeo in the number of pharyngeal tooth rows and from Sinocrossocheilus in the colour pattern. Two new species, H. banmo and H. paoli, differ in the distribution density and degree of development of papillae on the rostral fold, depth of indentations on the distal edge of the rostral fold, presence or absence of papillae on the lower lip, size and shape of tubercles on the tip of the snout and anterior portion of the lachrymal, length, position and colour pattern of the dorsal fin, and snout length.


ZooKeys ◽  
2019 ◽  
Vol 864 ◽  
pp. 35-65 ◽  
Author(s):  
Kevin W. Conway ◽  
Glenn I. Moore ◽  
Adam P. Summers

A new genus and two new species of miniature clingfishes are described based on specimens collected from dense stands of macroalgae in intertidal and shallow subtidal areas along the coast of southern Australia. The new genus, Barryichthys, is distinguished from other genera of the Gobiesocidae by unique features of the adhesive disc, including elongate papillae in adhesive disc regions A and B, the reduction and/or loss of several elements of the cephalic lateral line canals, the lower gill arch skeleton, and the neurocranium, and by having two distinct types of pectoral-fin rays. Barryichthyshutchinsi is described based on 19 specimens (12.4–18.7 mm SL) from Western Australia and South Australia. Barryichthysalgicola is described based on 22 specimens (9.0–21.0 mm SL) from Victoria, New South Wales and Tasmania. The new species are distinguished from each other by characters of body and head shape, vertebral counts, and aspects of live colour pattern. The new genus shares several characters in common with Parvicrepis, another genus of miniature gobiesocids from southern Australia that also inhabits macroalgae habitats. The many reductions and novel characters of Barryichthys are discussed within the context of miniaturisation.


Zootaxa ◽  
2021 ◽  
Vol 4964 (1) ◽  
pp. 123-139
Author(s):  
JÖRG FREYHOF ◽  
BARAN YOĞURTÇUOĞLU ◽  
CÜNEYT KAYA

Oxynoemacheilus sarus, new species, is described from the lower Ceyhan and Seyhan drainages in southern Anatolia. It is distinguished from other Oxynoemacheilus species in Cilicia (including the Göksu, Seyhan and Ceyhan drainages) by possession of a series of irregularly shaped midlateral blotches, 3–5 dark-brown bands on the caudal fin, a complete lateral line, a forked caudal fin (shortest middle caudal-fin ray is 56–70% of longest ray of the upper caudal-fin lobe), the caudal peduncle depth 1.4–1.8 times in its length, and a suborbital groove in male individuals. The new species occurs in sympatry with superficially similar O. seyhanicola and O. evreni, and is distinguished by colour pattern as well as morphometric and molecular characters. Molecular data suggest that the closest relatives to the new species in our dataset are O. euphraticus and O. shehabi, which is characterised by a minimum K2P distance of 3.6% and 3.8%, respectively, in the COI mtDNA barcode region.


Zootaxa ◽  
2021 ◽  
Vol 5047 (5) ◽  
pp. 589-595
Author(s):  
ELTON ORLANDIN ◽  
EDUARDO CARNEIRO

A recent taxonomic study revealed that specimens so far identified as Apatelodes satellitia (Walker, 1855) are in fact representatives of a complex of cryptic species. A new genus was established to hold this complex of species, namely Pantelodes Herbin, 2017. Here we describe a new species of Pantelodes from Southern Bahia Atlantic Forest based on morphological and molecular characters. Pantelodes camacana Orlandin & Carneiro sp. nov. is compared with other Pantelodes species and their phylogenetic relationships are discussed.  


Zootaxa ◽  
2017 ◽  
Vol 4290 (2) ◽  
pp. 201
Author(s):  
NICOLE L. GUNTER ◽  
THOMAS A. WEIR

A complex of small scarabaeine dung beetles related to Lepanus Balthasar, 1966 (Coleoptera: Scarabaeidae: Scarabaeinae) is described, based on morphological and molecular characters. There are two new genera, six new species, and seven new combinations, including the transfer of one species to a pre-existing genus, as follows. Matthewsius Gunter & Weir new genus includes two new species, M. stricklandensis Gunter & Weir new species from central New South Wales, Australia and M. vanleeuweni Gunter & Weir new species from Pilbara region of Western Australia, Australia; two species formerly included within Aptenocanthon Matthews, 1974, M. rossi (Matthews, 1974) new combination and M. speewah (Storey & Monteith, 2000) new combination; and two species formerly included within Lepanus, M. illawarrensis (Matthews, 1974) new combination and M. penelopae (Matthews & Weir, 2002) new combination. Monteithocanthon Gunter & Weir new genus includes six species: Monteithocanthon elliotensis Gunter & Weir new species, Monteithocanthon koombooloomba Gunter & Weir new species, and Monteithocanthon paraarator Gunter & Weir new species from northern Queensland, Australia; Monteithocanthon peckorum Gunter & Weir new species from southwestern Western Australia; and two species formally included within Lepanus, Monteithocanthon arator (Matthews, 1974) new combination and Monteithocanthon glaber (Matthews, 1974) new combination. Sauvagesinella loftyensis (Matthews & Weir, 2002) new combination is transferred from Lepanus on the basis of genetic and morphological similarities. 


Zootaxa ◽  
2010 ◽  
Vol 2519 (1) ◽  
pp. 31 ◽  
Author(s):  
P. K. PRAMOD ◽  
FANG FANG ◽  
K. REMA DEVI ◽  
TE-YU LIAO ◽  
T. J. INDRA ◽  
...  

Betadevario, new genus, with the single species B. ramachandrani, new species, from Karnataka, southwestern India, is closely related to Devario but differs from it in having two pairs of long barbels (vs. two pairs of short or rudimentary barbels, or barbels absent), wider cleithral spot which extends to cover three scales horizontally (vs. covering only one scale in width), long and low laminar preorbital process (vs. absent or a slender pointed spine-like process) along the anterior margin of the orbit, a unique flank colour pattern with a wide dark band along the lower side, bordered dorsally by a wide light stripe (vs. vertical bars, or stripes narrow and usually in greater number).


Zootaxa ◽  
2004 ◽  
Vol 401 (1) ◽  
pp. 1 ◽  
Author(s):  
MAURICE KOTTELAT

Botia kubotai, new species, is distinguished from all other species of the genus by its unique body colour pattern. In juveniles, three black stripes and five black bars leave four pairs of elongate yellow blotches; with increasing age, the bars and stripes widen, the yellow blotches become more slender and rows of small yellow spots are added in the stripes and in the bars. The nomenclature of Botiinae and the systematics of the South and Southeast Asian taxa are discussed. A new genus is named: Chromobotia (type species: Cobitis macracanthus). Hymenphysa is a synonym of Botia and species usually placed in Hymenphysa should be called Syncrossus.


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