Two new species of free-living nematodes genera Microlaimus de Man, 1880 and Aponema Jensen, 1978 (Nematoda: Microlaimidae) from the Black Sea

Zootaxa ◽  
2017 ◽  
Vol 4344 (2) ◽  
pp. 387 ◽  
Author(s):  
TATIANA N. REVKOVA
Keyword(s):  
New Species ◽  
Black Sea ◽  
The Body ◽  
The Black Sea ◽  
Head Region ◽  
Free Living ◽  
Pharyngeal Bulb ◽  
The Family ◽  
Two New Species ◽  
De Man

Two new species of the family Microlaimidae Micoletzky, 1922 are described and illustrated from the Black Sea. Aponema pontica sp. n. is morphologically closest to A. torosum in the shape of the body and spicules, size of amphids, but differs in having small and triangular cardia, absence of constriction in head region, shape of gubernaculum apophyses, rounded and weakly sclerotised lumen of pharyngeal bulb and longer spicules. Microlaimus paraglobiceps sp. n. morphologically resembles M. globiceps de Man, 1880 in the shape of the body, structure of the male sexual organs and presence of precloacal pore, but the main difference is a shorter body, cuticle finely annulated all over the body and absence of sexual dimorphism in the size of amphideal fovea. 

Nephtyidae (Annelida: Polychaeta) from the Sea of Marmara and Black Sea, with descriptions of two new species

Zootaxa ◽  
2021 ◽  
Vol 5060 (2) ◽  
pp. 33-64
Author(s):  
SEVGI KUŞ ◽  
GÜLEY KURT ◽  
MELIH ERTAN ÇINAR
Keyword(s):  
New Species ◽  
Body Size ◽  
Black Sea ◽  
The Body ◽  
The Black Sea ◽  
Sea Of Marmara ◽  
Marine Fauna ◽  
Black Sea Coast ◽  
Two New Species ◽  
Sea Coast

The present paper deals with the diversity of nephtyid polychaetes (Nephtyidae) from the Sea of Marmara and the Black Sea. Three species belonging to two genera (Micronephthys and Nephtys) were found in the Black Sea (coast of Turkey) and six species belonging to three genera (Inermonephtys, Micronephthys and Nephtys) were found in the Sea of Marmara. The material includes two species new to science, Inermonephtys turcica n. sp. and Nephtys sinopensis n. sp., and a species record (Nephtys kersivalensis McIntosh, 1908) new to the Sea of Marmara’s marine fauna. Nephtys sinopensis n. sp. is mainly characterized by having 1–4 geniculate chaetae in the postacicular position of the parapodia; digitiform antennae, palps, and ventral cirri at chaetiger 1 with swollen tips; small and cirriform branchiae present from chaetiger 4 to the end of the body; poorly developed parapodial prechaetal lamellae in median and posterior chaetigers and long ventral cirri along the body. Inermonephtys turcica n. sp. is mainly characterized by having cushion-like palps with digitiform tips; well developed neuropodial postchaetal lamellae; barred chaetae in preacicular position of the anterior and median parapodia; and branchiae first appearing between chaetiger 3 and 13 (depending on body size).  

Two new species of free-living marine nematodes of the family Oxystominidae Chitwood, 1935 (Enoplida) with a review of the genus Thalassoalaimus de Man, 1893 from the Argentine coast 

Zootaxa ◽  
2017 ◽  
Vol 4250 (4) ◽  
pp. 347
Author(s):  
ANTONELA MARTELLI ◽  
VIRGINIA LO RUSSO ◽  
GABRIELA VILLARES ◽  
CATALINA T. PASTOR DE WARD
Keyword(s):  
New Species ◽  
San Antonio ◽  
Marine Nematodes ◽  
San Jose ◽  
Key To Species ◽  
Free Living ◽  
Rio Negro ◽  
The Family ◽  
Two New Species ◽  
De Man

Two new free-living marine nematodes of the family Oxystominidae are described from San Antonio Bay (Río Negro) and San José Gulf (Chubut). Litinium australis sp. n., is characterized by having a rounded tail, by the first and second crown of cephalic setae with different lengths, gubernaculum with apophysis and by the presence of at least four precloacal papillae; Thalassoalaimus nestori sp. n., is characterized by having a conical tail, cephalic setae equal in length, gubernaculum with rounded and dorso-caudally directed apophysis and two precloacal papillae. An emended diagnosis of the genus Thalassoalaimus and a key to species are given. 

A new species of Microlaimus de Man 1880 (Nematoda: Microlaimidae) from the Black Sea

Zootaxa ◽  
2020 ◽  
Vol 4772 (1) ◽  
pp. 183-188
Author(s):  
TATIANA N. REVKOVA
Keyword(s):  
New Species ◽  
Body Length ◽  
Black Sea ◽  
The Body ◽  
Whole Body ◽  
The Black Sea ◽  
The Crimea ◽  
De Man ◽  
Amphidial Fovea ◽  
A New Species

Microlaimus sergeevae sp. n. is described and illustrated from the Crimea shelf of the Black Sea. It is characterized by the 1301–1728 μm long body; cuticle with distinct annuli; spicules 34–37 μm long, curved; gubernacular apophyses 20–25 μm long, surrounding distal end of spicules; criptocyrcular amphidial fovea 7–8 μm in diameter; cervical setae present; four submedian rows of pores spreading along the whole body length, and eight precloacal supplements in males. The new species morphologically resembles M. gerlachi Wieser 1954, M. paraborealis Allgen 1940a and M. kaurii Wieser 1954, but differs from them by the length of cephalic setae, size of the body, presence of cervical setae, shape of the gubernacular apophyses, eight tubular precloacal supplements and submedian rows of pores spreading along the whole body length. M. sergeevae sp. n. differs from M. gerlachi by having a smaller amphidial fovea, shorter spicules and gubernacular apophyses. The new species differs from M. paraborealis by having larger value of c. It differs from M. kaurii by having longer spicules and larger values of c and b. 

A new species of Cymbasoma (Copepoda, Monstrilloida) from the northern coast of Turkey (Black Sea) with comments on the C. longispinosum species-group

Crustaceana ◽  
2014 ◽  
Vol 87 (11-12) ◽  
pp. 1393-1410 ◽  
Author(s):  
F. Üstün ◽  
T. Terbiyik Kurt ◽  
E. Suárez-Morales
Keyword(s):  
New Species ◽  
Black Sea ◽  
Gulf Of California ◽  
Relative Length ◽  
Species Group ◽  
The Body ◽  
The Black Sea ◽  
Northern Coast ◽  
Black Sea Coast ◽  
The One

Cymbasoma sinopense sp. nov. is described from an adult female collected off the Sinop coast, in the southern Black Sea, Turkey. This is the first species of this genus recorded from the Black Sea coast of Turkey. The new species is a member of the widespread Cymbasoma longispinosum species-group, and it closely resembles C. chelemense Suárez-Morales & Escamilla, 1997 from the Yucatan Peninsula and C. californiense Suárez-Morales & Palomares-García, 1999 from the Gulf of California. This species can be distinguished by a combination of subtle characters, including the body proportions, the structure and armature of the fifth legs, the ornamentation of the genital somite, and the relative length of the ovigerous spines. A previous report of C. longispinosum from the northern Black Sea probably represented a misidentified record of C. sinopense sp. nov. The Mediterranean reports refer to a species that is different from the one of the Black Sea. Comparative comments and data including the main taxonomic characters of members of the Cymbasoma longispinosum species-group are presented. Overall, it is confirmed that records of this species from different geographic areas should be revised carefully because they could represent undescribed species. A key for the identification of the females of the currently known species assigned to the Cymbasoma longispinosum species-group is included.

A new species of the genus Thalassironus (Nematoda: Enoplida: Ironidae) from the coasts of South Korea

Zootaxa ◽  
2019 ◽  
Vol 4563 (3) ◽  
pp. 516 ◽  
Author(s):  
RAEHYUK JEONG ◽  
ALEXEI V. TCHESUNOV ◽  
WONCHOEL LEE
Keyword(s):  
New Species ◽  
Morphological Traits ◽  
Bohai Sea ◽  
Buccal Cavity ◽  
Marine Ecosystem ◽  
The Body ◽  
General Morphology ◽  
The Family ◽  
De Man ◽  
A New Species

A new species of the genus Thalassironus de Man, 1889 was discovered during several surveys of the offshore marine ecosystem in Korea. This new species belonging to the family Ironidae, Thalassironus koreanus sp. nov., shares general morphological traits of the genus such as an optically smooth cuticle, buccal cavity consisting of two parts with three movable teeth and thick cuticularized walls, six rounded lips with ten cephalic setae, slit-like amphid and short conical tail with caudal glands present. The new species is most closely related to T. bohaiensis, first discovered in the Bohai Sea, in terms of body ratio (a, b, c, c’) and general morphology, but differs by its generally longer and larger body structures, cervical setae at the level of the buccal cavity, paired somatic setae distributed along the body, and longer/larger spicule. A description of Thalassironus koreanus sp. nov., diagnosis of the genus, emended pictorial key for the genus and discussion of important characteristics for the genus is provided. 

Contributions to our Knowledge of Digenetic Trematodes Part V. On Two New Species of Philophthalmus Looss, 1899 and a Discussion on the Family Philophthalamidae

1962 ◽  
Vol 36 (3) ◽  
pp. 243-258 ◽  
Author(s):  
S. C. Baugh
Keyword(s):  
New Species ◽  
Oral Sucker ◽  
Anterior Extremity ◽  
The Body ◽  
Middle Region ◽  
Nictitating Membrane ◽  
Maximum Width ◽  
Digenetic Trematodes ◽  
The Family ◽  
Two New Species

Two specimens of this fluke were collected from the nictitating membrane of the Steppe Eagle, Aquila nipalensis Hudson, shot near the lake Chinhut, about 5 miles from Lucknow, U.P.The body.(Fig. 1) is aspinose, flattened and clavate with a narrow anterior and a broadly rounded posterior end. It measures 4·5–5·9 mm. in length and 1·5–1·8 mm. in maximum width in the middle region. The oral sucker is terminal measuring 0·33–0·36 mm. X 0·47–0·49 mm. The ventral sucker is larger than the oral sucker, situated at the level of the division of. the anterior and middle-thirds of the body, and about 1·14 mm. from the anterior extremity. It measures 0·56–0·61 mm. X 0·52–0·54 mm.

scholarly journals New species ofEpacanthion(Nematoda: Thoracostomopsidae) from Patagonia coast, Río Negro and Chubut, Argentina

2012 ◽  
Vol 93 (4) ◽  
pp. 925-934 ◽  
Author(s):  
V. Lo Russo ◽  
G. Villares ◽  
A. Martelli ◽  
C.T. Pastor de Ward ◽  
C. Harguinteguy
Keyword(s):  
New Species ◽  
Coastal Areas ◽  
The Body ◽  
Cervical Region ◽  
Marine Nematodes ◽  
Free Living ◽  
Rio Negro ◽  
Body Diameter ◽  
The Family ◽  
Short Spicule

Two new free-living marine nematodes belonging to the family Thoracostomopsidae, subfamily Enoplolaiminae and the generaEpacanthionare described from Patagonian coastal areas, Río Negro and Chubut provinces of Argentina. InEpacanthion bicuspidatumsp. nov. the main features are: two cusps on distal mandible end; presence of two rings of eight setae in the cervical region; and eight crown-shaped setae along the body, presence of one supplement distant two cloacal body diameter (cbd) from cloacae, gubernaculum and short spicule.Epacanthion ampullatumsp. nov. is characterized by having a tubular and long pre-cloacal supplement, short spicule, presence of gubernaculum, presence of three long setae on the tip of the tail, the presence of one supplement distant three cbd from cloacae and the presence of two small cusps on the distal end of the mandible.

First finding of Greeffiella Cobb, 1922 (Nematoda, Desmoscolecida) in the Black Sea

2021 ◽  
Vol 42 ◽  
pp. 96-102
Author(s):  
Nelly G. Sergeeva ◽  
Tatiana N. Revkova
Keyword(s):  
New Species ◽  
Black Sea ◽  
Fine Sand ◽  
The Body ◽  
The Other ◽  
The Black Sea ◽  
Short Esophagus ◽  
First Finding ◽  
Northwestern Shelf ◽  
A New Species

The first finding of the genus Greeffiella Cobb 1922 (Greeffiellinae, Desmoscolecidae) in the Black Sea is presented. Two mature females were collected in Northwestern Shelf of Crimea in strongly silted fine sand with detritus at a water depth of 56 m. Greeffiella sp. is described and illustrated. The absence of males in the collections does not allow the authors to present it as a new species for science or to identify it as one of the known species of the genus Greeffiella. Black sea specimen is distinguished from the other known species of the genus Greeffiella with the presence of 8 pairs of thicker specific setae along the body, the basis of which looks like a small lamina, but without hairs, which was previously described for G. pierri Schrage & Gerlach, 1975 and G. australis Schrage & Gerlach, 1975. The short esophagus at the base has two salivary glands and a cardia. Cardia has not been mentioned before for the known species of the genus Greeffiella.

Two new free-living nematode species of the family Xyalidae from the Laizhou Bay of the Bohai Sea, China

Zootaxa ◽  
2019 ◽  
Vol 4614 (2) ◽  
pp. 383 ◽  
Author(s):  
YAN SUN ◽  
YONG HUANG ◽  
HONGSHUO TANG ◽  
YU ZANG ◽  
HUI XIAO ◽  
...  
Keyword(s):  
New Species ◽  
Bohai Sea ◽  
Small Body ◽  
Nematode Species ◽  
Laizhou Bay ◽  
Free Living ◽  
The Bohai Sea ◽  
The Family ◽  
Two New Species ◽  
Free Living Nematode

Two new species of the family Xyalidae from the Laizhou Bay of the Bohai Sea, China are described and illustrated herein. Daptonema papillifera sp. nov. is characterized by relatively small body size, L-shaped spicules with a large cephalate proximal end, triangular gubernaculum with a dorsal apophysis, 5–6 conjoint precloacal cuticularized spines and two ventral papillae located at the middle of the tail. Daptonema papillifera sp. nov. is easily distinguished from the other species in this genus by having 5–6 conjoint precloacal cuticularized spines and two ventral caudal papillae. Pseudosteineria anteramphida sp. nov. is characterized by eight groups of long subcephalic setae located posterior to amphideal fovea, curved slender spicules with cephalate proximal end and tapered distal end, tubular gubernaculum without apophysis, precloacal supplements absent, and a short precloacal seta present. In comparison with its most similar congeneric species, P. ventropapillata Tchesunov, 2000 the new species differs in having smaller body, not jointed cephalic setae, absence of precloacal supplements and absence of gubernacular apophysis.

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