A new species of Polyophthalmus (Annelida, Opheliidae) from the Arabian Gulf, with an insight on internal anatomy and diversity of the genus

Zootaxa ◽  
2021 ◽  
Vol 5052 (4) ◽  
pp. 501-528
Author(s):  
JULIO PARAPAR ◽  
MANAL AL-KANDARI ◽  
MARÍA CANDÁS ◽  
JUAN MOREIRA

Polyophthalmus zhadanae sp. nov. (Annelida, Opheliidae), is described from the coast of Kuwait and Saudi Arabia (Arabian Gulf) after specimens collected in the intertidal and shallow subtidal. This new species is characterised by the body pigmentation pattern, distribution of lateral eyes, presence of small dorsal and ventral parapodial cirri and pygidial features. External and internal anatomy was described after examination with SEM and micro-CT. The presence of several body structures in the genus such as a cephalic palpode-like papilla is discussed. Furthermore, the diversity of genus Polyophthalmus and the presence of Polyophthalmus pictus (Dujardin, 1839) in the Indo-Pacific is reviewed and a key to species is provided.  

Author(s):  
Maxim V. Nabozhenko

Ectromopsis merkli sp. n. (Coleoptera: Tenebrionidae: Helopini) is described from Central Anatolia (coast of Eğirdir Lake). The species is the most similar to E. tantilla Ménétriés, 1848 from the Caspian depression (European Russia, West Kazakhstan) and differs in the body shape, structure of genae, the shape of pronotum and elytral punctation. Brief information about a relic type of distribution, trophic associations and adaptations of Ectromopsis spp. are given, as well as a key to species from the eastern part of the range. With seven figures.


Zootaxa ◽  
2009 ◽  
Vol 2053 (1) ◽  
pp. 43-58
Author(s):  
NATALIE BARNES ◽  
TIMOTHY JOHN FERRERO

Two new species of Manunema are described from the coast of Kuwait, one from the intertidal in Kuwait Bay and one found at shallow subtidal sites in the Arabian Gulf. Like other species of Manunema, the two species described here are characterised by coarse striation of the cuticle; a tapered, trunk-like cervical region; a large, elongate oesophageal bulb and corresponding swelling of the body; absence of cervical setae; pedunculate somatic setae; paired outstretched ovaries in females, tubular precloacal supplements in males and a pair of simple, curved spicules in males. Manunema kithara sp. nov. differs from other species in the genus by its characteristic, elongate, double oesophageal bulb which resembles a guitar in shape, being broader in the posterior half, and by the shape and form of the two precloacal supplements in the males. Manunema kuwaitiensis sp. nov. is similar to both M. proboscidis and M. annulata in having a weakly double oesophageal bulb, but differs in the morphology and position of the single precloacal supplement in males.


2011 ◽  
Vol 9 (3) ◽  
pp. 493-504 ◽  
Author(s):  
Mário C. C. de Pinna ◽  
Alexandre L. Kirovsky

A new species of sand-dwelling catfish genus Pygidianops, P. amphioxus, is described from the Negro and lower Amazon basins. The new species differs from its three congeners in the elongate eel-like body, the short barbels, and the small caudal fin, continuous with the body, among other traits of internal anatomy. The absence of anal fin further distinguishes P. amphioxus from all other Pygidianops species except P. magoi and the presence of eyes from all except P. cuao. The new Pygidianops seems to be the sister species to P. magoi, the two species sharing a unique mesethmoid with a dorsally-bent tip lacking cornua, and a produced articular process in the palatine for the articulation with the neurocranium. Pygidianops amphioxus is a permanent and highly-specialized inhabitant of psammic environments. Additional characters are proposed as synapomorphies of Pygidianops, including a hypertrophied symphyseal joint and associated ligament in the lower jaw; an elongate, laterally-directed, process on the dorsal surface of the premaxilla; and a rotated lower jaw, where the surface normally facing laterally in other glanapterygines is instead directed ventrally. These and other characters are incorporated into a revised phylogenetic diagnosis of Pygidianops.


Zootaxa ◽  
2018 ◽  
Vol 4496 (1) ◽  
pp. 218 ◽  
Author(s):  
TEERAPONG SEESAMUT ◽  
CHIRASAK SUTCHARIT ◽  
PARIN JIRAPATRASILP ◽  
RATMANEE CHANABUN ◽  
SOMSAK PANHA

A new species of the megascolecid earthworm genus Pontodrilus Perrier, 1874, Pontodrilus longissimus sp. n., is described from seashores of Thailand and Peninsular Malaysia. The new species differs from congeners, especially the cosmopolitan P. litoralis (Grube, 1855) in the size of the body, number of segments and the shape of the spermathecae. P. litoralis is redescribed, based on specimens collected from the same region and the same type of habitat. DNA fragments of the mitochondrial cytochrome oxidase subunit I of both species were sequenced. Morphological as well as DNA sequence-based comparisons confirm that P. longissimus sp. n. is a lineage distinct from P. litoralis and in fact a new species. The illustrated descriptions are accompanied by a key to species of Pontodrilus. 


Zootaxa ◽  
2018 ◽  
Vol 4526 (1) ◽  
pp. 84
Author(s):  
YOSHINO FUKUI

A new labrid fish, Terelabrus zonalis sp. nov., the fourth species of the genus, is described on the basis of two specimens collected from the Philippines. The new species is characterized by 44 longitudinal series scale rows, 42 pored lateral-line scales, 11–12 gill rakers (including rudiments), the main supratemporal sensory canal with 8 branches posteriorly, the area bounded by the main supratemporal and postotic sensory canals (dorsal view) with 3 scale rows, the least distance between the orbit anteroventral margin and interopercle 7.0% of standard length and 18 faint silver vertical bands on the body in preserved specimens. An underwater photograph of T. dewapyle is reported as the first record of the species from the Philippines. A key to species of Terelabrus is provided. 


2008 ◽  
Vol 25 (4) ◽  
pp. 843-846
Author(s):  
Juan M. Vargas R. ◽  
Celso O. Azevedo

Species of the Neotropical Alongatepyris Azevedo are rarely collected. It is recognized among Sclerodermini genera by having the body extremely flattened and the submedian cell of the fore wing small and completely closed. Originally monotypic, a second species, A. ingens sp. nov. from Colombia, is described and illustrated. This species is characterized by the absence of the radial vein of the fore wing. A diagnosis of A. platunissimus Azevedo, 1992 is presented and both species are compared. A key to species Alongatepyris is provided.


Zootaxa ◽  
2013 ◽  
Vol 3620 (2) ◽  
pp. 273-282 ◽  
Author(s):  
HSUAN-CHING HO ◽  
JEFFREY W. JOHNSON

Parapercis macrophthalma is confirmed as a valid species and redescribed on the basis of the holotype and other specimens collected from the type locality, Taiwan, and Japan. It is morphologically similar to P. muronis Tanaka, 1918, but differs in having five vertical transverse bars that extend well below the lateral line versus five oblique transverse bars, with the third to fifth bars ending on or above the lateral line. A new species is also described on the basis of a specimen collected from southwestern Taiwan. It is distinct in having numerous pores interconnected by canals on the head, forming 10 vertical or oblique rows on the cheek and opercular apparatus, predorsal scales extending to the level of the posterior margin of the eye, four dorsal-fin spines, six oblique bars laterally on the body, and a combination of other characters. A key to species of Parapercis with narrow transverse bars on the upper body is provided.


Zootaxa ◽  
2016 ◽  
Vol 4196 (4) ◽  
pp. 552 ◽  
Author(s):  
MARCELO R. S. MELO ◽  
VINICIUS C. ESPÍNDOLA

A new species of Characidium Reinhardt, 1867 endemic to tributaries of the upper rio Paraguaçu in the Chapada Diamantina, Bahia, Brazil, is described. The new species can be distinguished from its congeners except C. bahiense, C. bimaculatum, C. laterale, C. nana, C. nupelia, and C. xavante, by having a conspicuous peduncular blotch in addition to the basicaudal spot on the base of the middle caudal-fin rays. Among other features, the new species differs from C. bahiense, C. laterale, C. nana, C. nupelia, and C. xavante by having a complete lateral line with 32–36 perforated scales (vs. lateral line short, with 9–11 perforated scales), and from C. bimaculatum by the body pigmentation pattern, with secondary bars present (vs. absent), total bars 11–16 (vs. 10–12), peduncular blotch rounded (vs. horizontally elongated), and mature males not having a darker dorsal fin (vs. proximal third of dorsal fin darker in mature males). Characidium bimaculatum, a poorly known species from Northeastern Brazil, is redescribed. 


Zootaxa ◽  
2018 ◽  
Vol 4420 (1) ◽  
pp. 34 ◽  
Author(s):  
XUANKUN LI ◽  
DAVID K. YEATES

Known as a monotypic genus for over a century, Marmasoma White, 1916 is an endemic Australian bee fly genus belonging to the tribe Eclimini of the subfamily Bombyliinae. A new species: Marmasoma hortorum sp. nov. is described based on a series of specimens from Western Australia and South Australia. This new species can be easily distinguished from the congener by the inconspicuous pale wing markings and mostly white to pale yellow scales on the body, as well as characters of both male and female genitalia. M. sumptuosum is found in south-eastern Australia, including Tasmania, and some specimens have been collected on Kangaroo Island, South Australia. M. hortorum sp. nov. occurs in south Western Australia, and a pair of specimens has been taken just north of Port Augusta in South Australia. A key to species of Marmasoma is provided. 


2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.


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