Two new species of Sphaeromopsis (Crustacea: Isopoda: Sphaeromatidae) from the Persian Gulf

Zootaxa ◽  
2009 ◽  
Vol 2305 (1) ◽  
pp. 33-50 ◽  
Author(s):  
VALIALLAH KHALAJI-PIRBALOUTY ◽  
JOHANN-WOLFGANG WÄGELE

Two new species of Sphaeromopsis (Sphaeromatidae: Isopoda) from Iran are described based on light and electronmicroscope study: Sphaeromopsis sarii sp. nov. from the coasts of Kish and Qeshm Islands, and S. persikolpos sp. nov. from Kish Island, Qeshm Islands and the southern coasts of Iran. The two species are sympatric in most areas. Sphaeromopsis sarii is distinct among other species in the genus for having a pleotelson with a faint dorsomedial furrow and a broadly rounded apex. Sphaeromopsis persikolpos sp. nov. is unique for the single suture at either side of the posterior margin of the pleon, a narrow pleotelsonic apex, and the uropodal exopod extensions that reach well beyond the pleotelsonic apex.

Zootaxa ◽  
2011 ◽  
Vol 2930 (1) ◽  
pp. 33 ◽  
Author(s):  
VALIALLAH KHALAJI-PIRBALOUTY ◽  
JOHANN-WOLFGANG WÄGELE

Two new species of cirolanid isopods, Baharilana kiabii sp. nov. from the western coasts of Qeshm Island and Cirolana tarahomii sp. nov. from the northern cost of Kish Island and the western coasts of Qeshm Island in the Persian Gulf are described. Baharilana kiabii sp. nov. is characterized by pleonite 5 with a median projection and a pleotelson with two longitudinal, parallel ridges and small tubercles on the dorsal surface. Cirolana tarahomii sp. nov. is distinguished by a lateral margins of the frontal lamina converging slightly towards the base, the distal margin is extended with a narrowly rounded apex; appendix masculina distally acute with bifid apex, pleotelson with a broadly rounded apex and 8 marginal robust setae, uropodal rami not deeply bifid.


Zootaxa ◽  
2017 ◽  
Vol 4244 (1) ◽  
pp. 91 ◽  
Author(s):  
ALIEH BONYADI-NAEINI ◽  
NASRULLAH RASTEGAR-POUYANI ◽  
ESKANDAR RASTEGAR-POUYANI ◽  
CHRISTOPHER J. GLASBY ◽  
HASSAN RAHIMIAN

Currently, only 31 nereidid species are known from the Persian Gulf and Gulf of Oman. The present study was carried out in order to investigate the poorly known diversity of nereidid polychaetes from seas of the southern coasts of Iran. Specimens were collected from 23 locations along the intertidal zones of the two water bodies. Among the 26 species found: two are new, and are described here, including Simplisetia qeshmensis sp. nov. and Neanthes biparagnatha sp. nov.; 11 are new geographical records. Neanthes biparagnatha sp. nov. is most similar to N. deplanata (Mohammed, 1971), which is also found in the Persian Gulf, but can be most easily distinguished from it by the presence of bars in addition to cones in Area IV of the pharynx. Simplisetia qeshmensis sp. nov. may be distinguished from its closest congener, S. erythraeensis (Fauvel, 1918), also reported from the Persian Gulf, by having a greater number of paragnaths in Area I of the pharynx, an additional type of chaeta (homogomph spinigers) in the ventral neuropodial fascicle and having a reduced notopodial lobe in posterior chaetigers. The list of new records includes: one species from both areas, Neanthes glandicincta (Southern, 1921); eight species from the Persian Gulf, Leonnates decipiens Fauvel, 1929, Neanthes acuminata (Ehlers, 1868), Neanthes sp., Neanthes sp. cf. N. acuminata, Nereis sp. cf. N. pelagica Linnaeus, 1758, Perinereis cultrifera (Grube, 1840) species complex., Pseudonereis trimaculata (Horst, 1924), Pseudonereis sp. cf. P. variegata (Grube, 1857) and two from the Gulf of Oman, Leonnates persicus Wesenberg-Lund, 1949 and Perinereis kuwaitensis Mohammed, 1970. The present study brings to 40 the number of nereidid species currently known from the Persian Gulf and Gulf of Oman. A taxonomic key to nereidid species from the intertidal zones of the Persian Gulf and Gulf of Oman is presented to facilitate future investigations. 


1900 ◽  
Vol 32 (9) ◽  
pp. 285-286
Author(s):  
Herbert Osborn

Deltocephalus apicatus, n. sp.—Head and pronotum yellow; scutellum and elytra reddish fuscons, the latter with hyaline apex. Length to tip of elytra, ♀ and ♂, 3 mm.Vertex about as long as width between the eyes, margin rounded, apex prominent; front with sides nearly parallel to below the antennæ, then curving sharply to the base of the clypeus; clypeus slightly narrowed to tip. Pronotum, width more than twice the length, lateral margin short, posterior margin straight. Elytra passing the abdomen, with fully formed apical areoles (macropterous), or reaching only to tip of abdomen, with the apical areoles very much abbreviated.


2012 ◽  
Vol 82 (3) ◽  
pp. 201-209 ◽  
Author(s):  
Mohammad Haseli ◽  
Masoumeh Malek ◽  
Harry W. Palm ◽  
Verónica A. Ivanov

Nematology ◽  
2020 ◽  
pp. 1-17
Author(s):  
Azadeh Gharahkhani ◽  
Ebrahim Pourjam ◽  
Oleksandr Holovachov ◽  
Majid Pedram

Summary Members of the family Leptolaimidae are reported for the first time from Iran with description of two new species of Leptolaimus from the Persian Gulf in the south of the country. Leptolaimus hormozganensis sp. n. is described based upon three populations. It differs from other Leptolaimus species in the position of the pharyngeal supplement and the number of precloacal tubular supplements and has a single sickle-shaped tubular pharyngeal supplement at mid-pharynx level in both sexes, 9-12 male precloacal supplements and one female preanal supplement. Leptolaimus dimorphus sp. n. is characterised by the presence of a pharyngeal tubular supplement only in some adults, one female preanal supplement and four male precloacal supplements. It differs from other species in that the pharyngeal supplement is only present in some specimens, presence of four male precloacal supplements, tail 50-59 μm long and ventrosublateral position of vulva on either the right or left side of the body. Near full length SSU rDNA sequences are provided for L. hormozganensis sp. n. and two different males (one with, and one without, a pharyngeal supplement) of L. dimorphus sp. n. COI sequences for three populations of L. hormozganensis sp. n. from different regions of the Persian Gulf are also obtained. New sequences of two Leptolaimus species formed a clade with other sequenced Leptolaimus spp. and representatives of two genera of Leptolaimidae, i.e., Aphanolaimus and Paraplectonema in a phylogeny based on SSU rDNA gene with 1.00/81 Bayesian posterior probability/maximum likelihood bootstrap (BPP/BS) values. Molecular phylogeny confirmed the synonymy of Leptolaimus and Halaphanolaimus that was formerly proposed based only on morphology. Based on SSU sequences and morphological characters, the presence of a pharyngeal supplement may not be a species-specific character and should not be used to differentiate genera.


2006 ◽  
Vol 4 (3) ◽  
pp. 301-308 ◽  
Author(s):  
Tiago Pinto Carvalho ◽  
Vinicius Araújo Bertaco

Two new species of Hyphessobrycon are described from the upper rio Tapajós basin, Mato Grosso, Brazil. Hyphessobrycon melanostichos is distinguished from its congeners by the combination of a conspicuous longitudinal broad black band beginning on the posterior margin of orbit and reaching the tip of middle caudal fin rays, a distinct vertically elongate humeral spot, and 16 to 18 branched anal-fin rays. Hyphessobrycon notidanos is distinguished from its congeners by the combination of an elongate dorsal fin in mature males, a vertically elongate humeral spot, 2-4 maxillary teeth, iii,8 dorsal-fin rays, and 16 to 21 branched anal-fin rays.


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