Further data on Iranian marine nematode diversity, with description of three new Desmodoridae Filipjev, 1922 (Nematoda: Desmodorida) species from the Persian Gulf

Nematology ◽  
2021 ◽  
pp. 1-22
Author(s):  
Azadeh Gharahkhani ◽  
Ebrahim Pourjam ◽  
Daniel Leduc ◽  
Majid Pedram

Summary The Desmodoridae is a diverse and widespread family of free-living nematodes. Here, we provide the first record of the group in the Persian Gulf and describe three new species: Metachromadoroides sinuspersici sp. n., Zalonema iranicum sp. n. and Z. supplementorum sp. n. Metachromadoroides sinuspersici sp. n. is characterised by finely annulated cuticle, short and stout cephalic sensilla, amphidial fovea on cuticular thickening, pharyngeal bulb well developed and partitioned into three sections, absence of precloacal supplements, and presence of 6-8 pairs of rounded postcloacal papillae. Zalonema iranicum sp. n. is characterised by papilliform subcephalic sensilla (best observed with SEM), convex cephalic capsule, large multispiral amphidial fovea with 4-5 turns in both males and females, buccal cavity with one ventrosublateral and two dorsal teeth and posterior body of males with lateral alae extending from the last third of the body to the cloacal aperture and ventral alae extending 1395-2250 μm anterior to the cloacal aperture, and no precloacal supplements. Zalonema supplementorum sp. n. is characterised by four subcephalic sensilla 1-2 μm long, multispiral amphidial fovea with three turns in both males and females, buccal cavity with one dorsal and two ventrosublateral teeth, males with lateral alae present on each side of body from posterior half of body to cloacal aperture, ventral alae extending 942-1257 μm anterior to cloacal aperture, strongly cuticularised spicules 41-43 μm long, and 12-16 precloacal supplements. Near full length SSU and partial D2-D3 LSU sequences are provided for M. sinuspersici sp. n. and Z. iranicum sp. n., and the COI sequence is provided for Z. iranicum. The SSU phylogeny suggests a close relationship between M. sinuspersici sp. n. and Metachromadora and Metachromadoroides species and the monophyly of Zalonema (after currently available data). The LSU phylogeny suggests an affinity between Metachromadoroides and Zalonema with Spirinia and Acanthopharynx, respectively.

2019 ◽  
Vol 24 (7) ◽  
pp. 1319-1336
Author(s):  
Shahrooz Kazemi

In a survey on the edaphic mesostigmatic mites in mangrove forests of Qeshm Island, eastern of the Persian Gulf, two species of the family Ascidae were collected in broken cockleshells and sand in littoral zone: Leioseius sepidehae sp. nov. and Protogamasellus mica (Athias-Henriot, 1961). This is the first record of the genus Leioseius from Iran. Leioseius sepidehae sp. nov. is described from adult females. Intraspecific variations of some characters of P. mica are discussed, and based on those, P. primitivus machadoi Genis, Loots & Ryke, 1967 and P. primitivus similis Genis, Loots & Ryke, 1967 are herein synonymized under P. mica. Finally, the occasional presence of the gland pores gv1 in Ascidae is reviewed, and a key to the Iranian genera and species of Ascidae is presented.


Zootaxa ◽  
2011 ◽  
Vol 2834 (1) ◽  
pp. 17 ◽  
Author(s):  
OSCAR LISI

The author examined paratypes of Doryphoribius flavus (Iharos, 1966) (formerly Hypsibius (Isohypsibius) flavus Iharos, 1966), and the holotype and paratypes of D. citrinus (Maucci, 1972) (which is considered a junior synonym of D. flavus), furnishing new details, both qualitative and metric, to the description of the species, and providing a discussion on the synonymy. Specimens, previously attributed to these species, from Amazonia, South Africa, and Bali, were also examined and proved to belong to three species new to science: Doryphoribius amazzonicus sp. nov., Doryphoribius bindae sp. nov., and Doryphoribius solidunguis sp. nov. Doryphoribius amazzonicus sp. nov. has a reticular cuticular ornamentation with ridges forming a tubercle at each crossing; legs lacking cuticular ornamentation; buccal tube slightly longer than in D. flavus with respect to the body length, stylet supports inserted on the buccal tube in a slightly more caudal position; peribuccal papulae present; teeth and ridges appear to be absent in the buccal cavity; pharyngeal bulb with apophyses and two macroplacoids; claws slightly shorter and stouter than in D. flavus. Accessory points and smooth lunules present. No other cuticular thickening present on the legs. Doryphoribius bindae sp. nov. has a delicate reticular cuticular ornamentation formed by narrow ridges with a tiny tubercle at each crossing; a fine reticular design present on the legs; peribuccal papulae present, buccal armature with only one dorsal tooth near the medial margin of each stylet sheath. Pharyngeal bulb with apophyses and two macroplacoids. Accessory points and small lunules present. No other cuticular thickening present on the legs. Doryphoribius solidunguis sp. nov. has a very obvious reticular cuticular ornamentation with an irregular shape and size mesh (usually large) delimited by thick, sometimes protruding ridges that may form tubercles at crossings; cuticle of the legs smooth; peribuccal papulae present and two pairs of dorsal teeth lying along the anterior margins of the stylets sheaths. Pharyngeal bulb with apophyses and two macroplacoids. The claws are large and stout with very small accessory points; lunules present, those of the inner claws more evident than in similar species; a cuticular bar is present on the first three pairs of legs. Doryphoribius flavus was considered widespread, but this work exposing cryptic species indicates that the geographic distribution is more restricted.


2010 ◽  
Vol 49 (1) ◽  
pp. 109-110
Author(s):  
Fateme Amini Yekta ◽  
Aria Ashja Ardalan ◽  
Mohammad Reza Shokri

2020 ◽  
Author(s):  
nerssy nassirabady ◽  
N. Negar Ghotbeddin ◽  
Laleh Roomiani

Abstract Background Mudskipper is from the Gobiidae family and from the subfamily Oxudercinae. Mudskipper contains four main genera Boleophthalmus, Periophthalmodon, Periophthalmus, and Scartelaos. The aim of this research identification of bacterial agent (Marine bacteria) mudskippers Boleophthalmus dussumieri on the Shores of the northern intertidal areas of the Persian Gulf (Abadan, Hendijan and Bahrekan), Iran. The mud sediment and water samples (at the depth of one m), and mudskipper fish samples (near shore at the intertidal) were collected from Abadan, Hendijan and Bahrekan in northern coasts of the Persian Gulf, Iran. Results A total of 80 aerobic bacteria marine (from the intestines of mudskipper, seawater, and muddy sediments ) was identified by biochemical tests and 16S rRNA gene sequence analysis. The bacteria's (Marine bacteria) [Eubacterium] tenue strain DSM 20695, Praclostridium bifermentans strain JCM 1386 and Vibrio hyugaensis strain 090810a was first identified in the northern intertidal areas of Persian Gulf, Iran. Conclusions Bacteria compete with other organisms to get oxygen to the surface layers of the flower bed. They give that the bacterial species common to the fish intestines and sediments is high and due to fish feeding of sediment it can be concluded that the species present in the fish intestine in the present study may be a function of substrate species that needs further studies to prove this.


2016 ◽  
Author(s):  
Sharif Ranjbar ◽  
Mohammad Sayed Dakhteh ◽  
Koen Van Waerebeek

A small, juvenile rorqual live-stranded on Qeshm Island, Iran, in the northern Strait of Hormuz (Persian Gulf) in September 2007. Cause of stranding remains unknown but the whale (QE22.09.2007) showed no severe traumatic injuries nor was emaciated. Based on at least seven morphological features, considered diagnostic in combination, allowed a positive identification as Omura's whale Balaenoptera omurai. Features included diminutive body size (397 cm), a large number of ventral grooves (n=82) extending caudad of the umbilicus, a strongly falcate dorsal fin, asymmetric colouration of the head (especially lower jaws) reminiscent of fin whale, including three unilateral dark stripes, faint/incomplete lateral rostral ridges, record low number of short, broad baleen plates (204 in right jaw). The likelihood for the existence of a local B. omurai population in the eastern Persian Gulf or northern Arabian Sea seems higher than the wandering of a very young animal or mother/calf pair from any of the known distant distribution areas in the eastern Indian Ocean or SW Indian Ocean (Madagascar). This is the first record of B. omurai in the NW Indian Ocean.


2008 ◽  
Vol 11 (21) ◽  
pp. 2521-2524 ◽  
Author(s):  
P. Sadeghi ◽  
A. Savari ◽  
V. Yavari ◽  
M. Loghmani Devin

2012 ◽  
Vol 5 ◽  
Author(s):  
Abdul-Reza Dabbagh ◽  
Musa Keshavarz ◽  
Dariush Mohammadikia ◽  
Majid Afkhami ◽  
Seyyed Afshin Nateghi

Crustaceana ◽  
2016 ◽  
Vol 89 (3) ◽  
pp. 259-271 ◽  
Author(s):  
Mehrnaz Afkhami ◽  
Christoph D. Schubart ◽  
Reza Naderloo

The marine environment of the Persian Gulf is characterized by extreme biophysical factors, like high salinities. This gulf is a semi-enclosed basin and is connected to the Gulf of Oman via the narrow Strait of Hormuz that may act as a barrier to gene flow between the two gulfs. Consequently, animal populations living in the Persian Gulf are hypothesized to be isolated and thus to evolve independently from neighbouring populations. We tested this hypothesis with the xanthid crab,Leptodius exaratus(H. Milne Edwards, 1834), which is one of the most common intertidal crabs occurring in the Persian Gulf and the Gulf of Oman. Four-hundred-and-fifty specimens were collected from eight sampling sites, i.e., four sites each in the Persian Gulf and the Gulf of Oman. Fifteen morphometric characters were measured. Males and females were analysed separately to avoid bias as a consequence of sexual dimorphism. Due to the lack of normal distribution in males, two different approaches were carried out in this paper. Female specimens were included in parametric analyses, while males were tested with permutational multivariate analyses of variance. In female morphometric characters,t-test analyses showed significant differences between the two sets of populations, and the discriminant analysis showed divergence between the two groups (with 83% correct groupings). In the males, the applied analyses showed a significant difference () between the two gulfs. These divergences can be interpreted as a consequence of regional adaptations and a low rate of larval migration between the two gulfs.


Zootaxa ◽  
2019 ◽  
Vol 4624 (2) ◽  
pp. 296-300
Author(s):  
CHAMUNDEESWARI KANAGARAJ ◽  
RICH MOOI ◽  
DEEPAK SAMUEL VIJAY KUMAR ◽  
HRISHIKESH PREMACHANDRAN ◽  
ABHILASH KOTTARATHIL RAJENDRAN ◽  
...  

The irregular urchin, Metalia persica (Mortensen, 1940), a heart urchin of the family Brissidae, is reported for the first time from the southeastern coast of India. A single specimen was collected from fishing by-catch at Chinna Neelankarai (12º 56’ 29.7” N, 80º 15’ 36.6” E),  Chennai on April 5, 2018. Metalia persica was previously recorded only from the Persian Gulf (Arabian Gulf). This study records Metalia persica for the first time from Indian waters, in the Bay of Bengal, and elucidates features of the anal fasciole. 


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