A new species and new records ofMagelona(Annelida: Magelonidae) from Chabahar Bay, Gulf of Oman, South-eastern Iran

2016 ◽  
Vol 97 (7) ◽  
pp. 1537-1552
Author(s):  
Arash Shakouri ◽  
Kate Mortimer ◽  
Esmaeil Dehani

The infauna of Chabahar Bay (Iranian Coast of the Gulf of Oman) was investigated using shallow water (less than 10 m) grab-samples between June 2013 and March 2014. The magelonid fauna of these samples was studied and prioritized, with four species being present:M. fauchaldisp. nov.,M. symmetrica, M.cf.cinctaandM. crenulifrons. The new species differs from all known magelonid species within the Persian Gulf region in possessing polydentate abdominal hooks. A fifth species, currently undescribed, was also found. The validity ofM. pulchellaoriginally described from Kuwait is discussed in light of its closeness toM. crenulifrons. The main distinguishing feature between the two species is the presence or absence of crenulation of the anterior prostomial margin, a character shown to be variable inM. crenulifrons. Although differences between the type specimens of both species suggestsM. pulchellato be a valid species, examination of further material and DNA analysis is needed.

2009 ◽  
Vol 54 (1) ◽  
Author(s):  
Juan Timi ◽  
Ana Lanfranchi ◽  
Luiz Tavares ◽  
José Luque

AbstractA new nematode species Dichelyne (Cucullanellus) sciaenidicola sp. nov. is described based on specimens collected from the Whitemouth croaker Micropogonias furnieri (Desmarest) and the Argentine croaker Umbrina canosai Berg, from coastal waters of Argentina and Brazil. These nematodes were firstly identified as D. (C.) elongatus (Törnquist, 1931), a commonly reported species from M. furnieri in South American Atlantic waters. However, other species of Dichelyne have so far been reported from this host in the same area, namely D. (C.) rodriguesi (Pinto, Fábio et Noronha, 1970), D. (C.) amaruincai (Freitas, Vicente et Ibañez, 1969) and D. (Dichelyne) micropogonii Pereira et Costa, 1996. A careful re-examination of these parasites, as well as of type specimens of all species reported from M. furnieri, revealed that these nematodes represented a new species. The new species is distinguished from most of its congeners by having papillae 5–7 and 9 forming a subventral line close to cloaca, this feature is shared with other 6 species [D. (C.) dichelyneformis (Szidat, 1950), D. (C.) fraseri (Baylis, 1929), D. (C.) abbreviatus (Rudolphi, 1819), D. (C.) adriaticus (Törnquist, 1931), D. (C.) minutus (Rudolphi, 1819) and D. (C.) mariajuliae Alarcos, Timi, Etchegoin et Sardella, 2006)], which are readily distinguished by their body size, spicules length, distribution patterns of other papillae and position of the excretory pore and deirids. Also, D. (C.) elongatus from Umbrina canariensis (Valenciennes) from West Africa is established as a new species Dichelyne (Cucullanellus) yvonnecampanae sp. nov.; D. (C.) amaruincai from Pacific waters is considered as a valid species, D. (D.) micropogonii is regarded as species inquirendae and D. (C.) rodriguesi is identified as Cucullanus sp.


Zootaxa ◽  
2021 ◽  
Vol 4961 (1) ◽  
pp. 1-85
Author(s):  
HELEN K. LARSON ◽  
MICHAEL P. HAMMER

The tridentigerine genus Pseudogobius is widespread, from temperate to tropical areas of the Indo-west Pacific. A morphological review of the genus was carried out, with the initial focus on South-east Asian and Australian species. There are about 21 nominal species in the genus; however, the type specimens for some nominal species are missing. Our work recognises 15 valid species so far, including seven new species, which are described herein: P. aquilonius n. sp., P. cinctus n. sp., P. eos n. sp., P. hoesei n. sp., P. jeffi n. sp., P. rhizophora n. sp. and P. verticalis n. sp. We also conclude that P. poicilosoma (Bleeker, 1849) is the senior synonym of P. javanicus (Bleeker, 1856). Pseudogobius poicilosoma, P. gastrospilos (Bleeker, 1853) and P. javanicus are accepted here as conspecific, although the types are in poor condition (note that all three names were given to specimens collected within close proximity to each other in coastal Java, Indonesia). A key to valid species is presented. The revision benefited from an adaptive feedback loop with companion genetic analyses, with the most comprehensive data available for the Australian region. Broader preliminary genetic data suggest the potential for recognition of additional cryptic species, with the current study providing a platform for future systematic work. Pseudogobius are a prominent part of estuarine biodiversity in the Indo-west Pacific, and this study helps to highlight the need to better understand the taxonomy and conservation requirements of cryptobenthic fishes. 


2011 ◽  
Vol 9 (4) ◽  
pp. 709-730 ◽  
Author(s):  
Alejandro Londoño-Burbano ◽  
César Román-Valencia ◽  
Donald C. Taphorn

We review species of Parodon Valenciennes, 1850 from the Magdalena, Cauca, Orinoco, Amazonas, Atrato and Caribbean-Guajira River basins of Colombia using meristic and morphological characters. We recognize eight valid species, five previously described: P. apolinari Myers, from the Orinoco River basin; P. buckleyi Boulenger and P. pongoensis (Allen) from the upper Amazon; P. caliensis Boulenger, from the upper Cauca River drainage; and P. suborbitalis Valenciennes, from Lake Maracaibo basin. Three new species are described: P. alfonsoi, from the lower Magdalena River drainage; P. magdalenensis, from the middle Magdalena and upper Cauca River drainages; and P. atratoensis, from the Atrato River basin. We redescribe Parodon suborbitalis using type specimens and topotypes, and designate lectotypes. A taxonomic key is included for identification of the species, as well as geographic distribution maps.


Zootaxa ◽  
2018 ◽  
Vol 4446 (4) ◽  
pp. 401 ◽  
Author(s):  
F. NAZARI ◽  
O. MIRSHAMSI ◽  
A. SARI ◽  
M. ALIABADIAN ◽  
P. MARTÍNEZ ARBIZU

A survey of copepods from intertidal zone of the Persian Gulf and the Gulf of Oman resulted in discovery of three new species belonging to the family Canuellidae Lang, 1944. This work contributes to the final aim to describe meiobenthic copepods from this region and is the first description of meiobenthic copepods from Iranian coastline. The new species belong to the genera Brianola Monard, 1926, Canuella, T. & A. Scott, 1893, and Scottolana Huys, 2009. Compared to other congeners, Brianola haliensis sp. nov. is unique in the armature of the first leg, number of segments and setation of the antennary endopod and exopod. Canuella persica sp. nov. is easily distinguishable from its congeners by the shape of furcal rami and male genitalia. Scottolana gomezi sp. nov. is assigned to the longipes-group by the presence of two and three post-genital somites in the female and male, respectively. It is closely related to S. geei (Mu & Huys, 2004) recorded from the Bohai Sea, China, but can be distinguished by its eight-segmented antennary exopod, mouthparts setation, and shape of the furcal rami. 


Zootaxa ◽  
2020 ◽  
Vol 4806 (1) ◽  
pp. 1-144
Author(s):  
STEFFEN BAYER ◽  
HUBERT HÖFER ◽  
HEIKO METZNER

We propose a revision of the spider genus Corythalia C.L. Koch, 1850 (Salticidae: Euophryini) with a revised genus diagnosis based on examination of all species available to us. In this paper we redescribe all previously described species from South America with revised species diagnoses and describe 20 new species from South America (and the nearby islands). For C. latipes, the type species of the genus Corythalia, a neotype is designated. In total, 52 nominal species of the genus are herein treated, 46 species are recognized as valid. The females of C. waleckii Taczanowski, 1871, C. luctuosa Caporiacco, 1954 and C. latipes (C.L. Koch, 1846) are described for the first time. Corythalia sellata Simon, 1901, erroneously considered as nomen nudum in the present version of the World Spider Catalog, is here recognised as a valid species. Corythalia fulgipedia Crane, 1948 is also considered a valid species and is removed from the synonymy of C. tropica (Mello-Leitão, 1939). One name is considered a nomen dubium (Corythalia variegata Caporiacco, 1954), two are nomina nuda (C. major Simon, 1901; C. dimidiata Simon, 1901). Two species are transferred to other genera: C. argyrochrysos (Mello-Leitão, 1946) to Pachomius Peckham & Peckham, 1896 as Pachomius argyrochrysos (Mello-Leitão, 1946), comb. nov. and C. heliophanina (Taczanowski, 1871) to Neonella Gertsch, 1936, as Neonella heliophanina (Taczanowski, 1871), comb. nov. under incertae sedis. One species is synonymised: C. barbipes (Mello-Leitão, 1939) is a junior synonym of C. cincta (Badcock, 1932), syn. nov. The new Corythalia species are: C. conferta sp. nov. (♂♀, Brazil), C. concinna sp. nov. (♀, Brazil), C. drepane sp. nov. (♂♀, Brazil), C. drepanopsis sp. nov. (♀, Brazil), C. antepagmenti sp. nov. (♂♀, Brazil), C. ricti Bayer, sp. nov. (♂, Guyana), C. protensa sp. nov. (♂, Brazil), C. gasnieri sp. nov. (♂, Brazil), C. verhaaghi sp. nov. (♀, Brazil), C. scutellaris Bayer, sp. nov. (♂♀, Ecuador), C. dakryodes Bayer, sp. nov. (♀, Colombia), C. foelixi Bayer, sp. nov. (♂♀, French Guiana), C. longiducta sp. nov. (♀, Brazil), C. latior sp. nov. (♂, Bolivia), C. trochophora Bayer, sp. nov. (♂, Ecuador), C. lineata Bayer, sp. nov. (♂, Guyana), C. hamulifera Bayer, sp. nov. (♂, Ecuador), C. tribulosa sp. nov. (♂, Colombia), C. flagrans sp. nov. (♂, Brazil) and C. fragilis sp. nov. (♂♀, Brazil). Illustrations are provided for all of the new species and for all (primary) type specimens of the species re-described. Hypotheses of possible relationships among the different species of Corythalia are discussed. 


Zootaxa ◽  
2020 ◽  
Vol 4838 (4) ◽  
pp. 503-514
Author(s):  
HOSSEIN ASHRAFI ◽  
ZDENĚK ĎURIŠ ◽  
REZA NADERLOO

Extensive samplings of benthic fauna along the Iranian coastlines of the Persian Gulf and Gulf of Oman during 2018–2019 resulted in a small series of shrimps of the alpheid genus Salmoneus. Based on a thorough examination of this material, as well as previously collected specimens, one new species, S. rashedi n. sp., is described, whilst a significant range extension of S. chadwickae Ďuriš & Horká, 2016 is reported. Salmoneus rashedi n. sp. is a member of S. gracilipes species group. The present new species differs from other species of the group by a longer rostrum with a short dorsal crest and a single ventral rostral tooth; the species occurs in two colour forms from yellow to reddish orange with some transverse red bands. 


Author(s):  
Vahid Sepahvand ◽  
Alireza Sari ◽  
Hassan Salehi ◽  
Seyed-Mohammad-Bagher Nabavi ◽  
Seyed-Ghasem Ghorbanzadeh

The mud shrimps of Iran are not well known. Material for the present study was collected from 21 out of 51 intertidal localities from the Persian Gulf and Gulf of Oman, Iran. In total, 11 species were found along the Iranian coast. These were belonging to three families, including Upogebiidae (Upogebia carinicauda, U. darwinii and U. pseudochelata), Callianassidae (Neocallichirus jousseaumei, N. calmani, Callichirus masoomi, Corallianassa coutierei, Michaelcallianassa indica, Paratrypaea bouvieri and Gourretia coolibah) and Callianideidae (Callianidea typa). Geographical distributions of the species were considered and the results show that each species is totally dependent on a special type of habitat. Comparing different types of habitat, sandy and muddy substrates of the intertidal and shallow subtidal zone are found as the dominant habitat type for all species, but some species have a preference for boulder dominated coasts or occupy already existing holes and crevices in the boulder and bedrocks. In addition, the world distribution of each species was considered, and according to their present recorded localities, these are grouped into two distributional categories including the Indo-West Pacific region and one in a broader area of the Indo-Pacific.


Zootaxa ◽  
2020 ◽  
Vol 4895 (3) ◽  
pp. 431-439
Author(s):  
FARZANEH MOMTAZI ◽  
ABDOLVAHAB MAGHSOUDLOU

A new species of ampithoid amphipod, Pleonexes nargessi, is described from the southern Iranian coasts of the Persian Gulf and the Gulf of Oman. The new species is the most similar to P. kava (Myers, 1985), but distinguished by the presence of the posterior tooth and the defining robust seta on the palm of male gnathopod 1, semi prehensile pereopod 5, and non-prehensile pereopods 6–7. Ampithoe qeshmensis Layeghi & Momtazi, 2018 is transferred into Pleonexes. 


1957 ◽  
Vol 89 (11) ◽  
pp. 485-490 ◽  
Author(s):  
C. V. G. Morgan ◽  
N. H. Anderson

The clover, or brown, mite, Bryobia praetiosa Koch, was described in 1836 from specimens collected an shrubbery in Germany. The systematics of the species is complex and confusing. By 1838, Koch had described four species in the genus Bryobia but he preserved no type specimens and his descriptions do not agree with his illustrations (7, 12). Subsequent workers either placed Koch's species in synonomy nor described new species. Two species, speciosa Koch and ribis Thomas, have created the most controversv. B. speciosa was accepted as valid by Koch, Berlese, Canestrini and Fanzago, ind Oudemans, but rejected by von Hanstein and Trägårdh (2, 12). The gooseberry mite, B. ribis, was recognized as a valid species by Thomas and von Hanstein but Oudemans and Trägårdh placed it in synonomy with B. praetiosa (12). Further confusion was caused by the descriptions of additional new species of Bryobia and by descriptions of immature stages of B. praetiosa (8). The following taxonomic characters used by early acarologists in describing species of Bryobia have since been considered too variable for distinguishing species: number of femoral and tarsal hairs on the foreleg, body size, concavity of dorsum, and size and shape of cephalothoracic plate (7, 8, 12). Consequently, taxonomists have been at a loss to interpret Koch's original descriptions and subsequent redescriptions became inevitable. Because of the lack of morphological distinctions the modern trend has been to group all previously proposed species into one valid species (7, 8). As a result, 20 synonyms are now recognized for B. praetiosa (8).


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