Swedish Plectida (Nematoda). Part 3. The genus Loveninema gen. n.

Zootaxa ◽  
2012 ◽  
Vol 3505 (1) ◽  
pp. 26
Author(s):  
OLEKSANDR HOLOVACHOV ◽  
SVEN BOSTRÖM
Keyword(s):  
New Species ◽  
Excretory Pore ◽  
Reproductive System ◽  
West Coast ◽  
New Genus ◽  
Ventral Side ◽  
The West ◽  
Two New Species ◽  
Amphidial Fovea ◽  
Ventral Edge

A new genus Loveninema gen. n., with two new species L. tubulosa gen. n., sp. n. and L. unicornis gen. n., sp. n. is de-scribed from bottom sediments collected in Skagerrak off the west coast of Sweden. Loveninema gen. n. is unique amongother genera of Plectida by possessing a midventral labial projection located on the ventral edge of the oral opening andprotruding anteriorly. Other diagnostic characters include: sclerotised labial framework in the shape of a conoid ring withthree projections extending posteriorly: one mid-dorsal, one left-subventral and one right-subventral; papilliform outer la-bial and cephalic sensilla; amphidial fovea a transverse slit located anterior to cephalic sensilla bases; excretory pore open-ing on the ventral side of the labial region; pharynx uniformly muscular, cylindrical; female reproductive systemdidelphic, amphidelphic; male reproductive system monorchic, with reflexed testis; spicules present; gubernaculum pres-ent or absent; either alveolar or tubular supplements present in males, absent in females; caudal glands and spinneret pres-ent. L. tubulosa gen. n., sp. n. is particularly characterised by the 0.66–1.12 mm long body; short midventral labialprojection; straight vagina without sclerotisations; male without alveolar and with 12–15 tubular supplements, 15.0–21.5µm long spicules, and with gubernaculum. L. unicornis gen. n., sp. n. is particularly characterised by the 0.65–0.98 mmlong body; long midventral labial projection; straight vagina without sclerotisations; male with up to 20 alveolar and without tubular supplements, 11.5–14.0 µm long spicules, and without gubernaculum.

scholarly journals Occigamasus, a new genus of pergamasine mites, with description of two new species from the west coast of North America (Parasitiformes: Gamasina: Parasitidae)

Acarologia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 551-570
Author(s):  
Ilinca Juvara-Balş
Keyword(s):  
New Species ◽  
North America ◽  
West Coast ◽  
New Genus ◽  
Vancouver Island ◽  
New Combination ◽  
The West ◽  
Two New Species

Occigamasus n. gen., O. lindquisti n. sp. and O. makarovae n. sp. from Vancouver Island (Canada) and Oregon (U.S.A.) are described. Five other new species and their sites are noted but not enough specimens were available for adequate descriptions. Cycetogamasus californicus (Banks) sensu Hennessey and Farrier, 1988 is transferred to Occigamasus as a new combination.

scholarly journals Belgopeltula belgica (Vincx & Gourbault, 1992) gen. et comb. nov. and Mudwigglus micramphidium sp. nov. from the west coast of Sweden, and reappraisal of the genus Pseudaraeolaimus Chitwood, 1951 (Nematoda: Araeolaimida: Diplopeltidae)

2017 ◽  
Author(s):  
Oleksandr Holovachov
Keyword(s):  
Excretory Pore ◽  
West Coast ◽  
New Genus ◽  
Distal Part ◽  
Dorsal Side ◽  
The Body ◽  
Type Material ◽  
Double Loop ◽  
The West ◽  
Amphidial Fovea

Two species of the nematode family Diplopeltidae are described from Skagerrak. The new genus Belgopeltula gen. nov. is proposed for Diplopeltula belgica Vincx & Gourbault, 1992 and is characterised by: amphidial fovea circular in female and double-loop-shaped in male; excretory pore located at the level of cephalic setae bases; oral opening on the dorsal side of the body; pharynx subdivided into strongly muscularised fusiform corpus and weakly muscularised narrow and long postcorpus; female didelphic with antidromously reflexed ovaries; supplements absent. Mudwigglus micramphidium sp. nov. is characterised by: a body of 0.6 mm long; cephalic sensilla 1.5 µm long; amphidial fovea loop-shaped, 8 µm long and 3.5 µm wide; gymnostom without cuticularised ring; tail elongate conoid, with subcylindrical distal part; terminal setae absent; spicules 15 µm long; gubernaculum present; two midventral precloacal setae. It is distinguished from M. macramphidium Leduc, 2013 in having shorter amphidial fovea, shorter spicules and presence of two precloacal setae. Redescription of Diplopeltis cylindricauda Allgén, 1932 is provided based on type material. Diplopeltula minuta Vitiello, 1972 is transferred to the genus Mudwigglus Leduc, 2013. Diplopeltis cylindricauda Allgén, 1932, Diplopeltula laminata Vitiello, 1972 and Diplopeltula cassidaignensis Vitiello, 1972 are transferred to the genus Pseudaraeolaimus Chitwood, 1951.

Two new species of Bargmannia (Pyrostephidae, Physonectae, Siphonophorae)

Zootaxa ◽  
2019 ◽  
Vol 4686 (1) ◽  
pp. 74-82
Author(s):  
P. R. PUGH
Keyword(s):  
New Species ◽  
West Coast ◽  
Distal Part ◽  
The West ◽  
Two New Species ◽  
Living Species

Two new deep-living species of the genus Bargmannia (Siphonophorae, Physonectae, Pyrostephidae) are described based, almost exclusively, on the nectophores of single specimens collected by ROVs off the west coast of California. The nectophores of B. stenotes sp. nov. were relatively small, up to 11.4 mm in length and, in the preserved condition had very narrow nectosacs. There was a marked bend in the distal part of the preserved nectophore, resulting in the ostium opening upwards. The mature nectophores of B. profunda sp. nov. were almost twice as long as those of B. stenotes and were characterised by the fact that the lower lateral ridges did not join, distally, with the meso-lateral ones. This feature also was present in smaller nectophores of B. amoena but those of B. stenotes, at that stage, did not have a mouth-plate. 

New fossil portunids from Washington, USA, and Argentina, and a re-evaluation of generic and family relationships within the Portunoidea Rafinesque, 1815 (Decapoda: Brachyura)

2000 ◽  
Vol 74 (4) ◽  
pp. 636-653 ◽  
Author(s):  
Carrie E. Schweitzer ◽  
Rodney M. Feldmann
Keyword(s):  
New Species ◽  
North America ◽  
New Taxa ◽  
Family Relationships ◽  
West Coast ◽  
New Genus ◽  
New Combinations ◽  
The West

New portunoid fossils from southern Argentina and from the west coast of North America permit the reevaluation of the generic and family relationships within the Portunoidea Rafinesque, 1815. It has previously been suggested that the Portunidae and the Geryonidae Colosi, 1923, are closely related families (Manning and Holthuis, 1989). The new fossils suggest that the Geryonidae may in fact be derived from a portunid progenitor,ProterocarcinusFeldmann, Casadío, Chirino-Gálvez, and Aguirre Urreta, 1995, through a process of peramorphosis in which juveniles of the geryonid speciesChaceon peruvianus(d'Orbigny, 1842) resemble adults ofProterocarcinus latus(Glaessner, 1933). Examination of several genera within the portunid subfamily Polybiinae Ortmann, 1893, includingImaizumilaKarasawa, 1993;Megokkosnew genus;MinohellenusKarasawa, 1990;PororariaGlaessner, 1980;PortunitesBell, 1858; andProterocarcinus,suggests that the subfamily had an amphitropical distribution early in its history. New taxa reported here includeMegokkosnew genus andPortunites nodosusnew species. New combinations includeChaceon peruvianus(d'Orbigny, 1842),Imaizumila araucana(Philippi, 1887),Megokkos alaskensis(Rathbun, 1926),Megokkos hexagonalis(Nagao, 1932),Megokkos macrospinus(Schweitzer, Feldmann, Tucker, and Berglund, 2000),Minohellenus triangulum(Rathbun, 1926), andProterocarcinus latus(Glaessner, 1933).

A taxonomic revision of Pseudochitinopoma Zibrowius, 1969 (Annelida, Serpulidae) with description of two new species

Zootaxa ◽  
2012 ◽  
Vol 3507 (1) ◽  
pp. 57
Author(s):  
ELENA K. KUPRIYANOVA ◽  
HARRY A. TEN HOVE ◽  
EJIROH NISHI
Keyword(s):  
New Species ◽  
North America ◽  
Red Sea ◽  
Western Australia ◽  
West Coast ◽  
Taxonomic Revision ◽  
The West ◽  
Reproductive Patterns ◽  
Two New Species ◽  
Phylogenetic Affinities

This study is a revision of the poorly known genus Pseudochitinopoma Zibrowius, 1969 (Annelida, Serpulidae), erected for Hyalopomatopsis occidentalis Bush, 1905 from the West Coast of North America. Subsequently, an unnamed Pseudochitinopoma sp. nov. from the Seychelles (ten Hove 1994) (described herein as P. amirantensis sp. nov.) and P. pavimentata Nishi, 1999 were added to the genus. Ficopomatus capensis Day, 1961 is herein referred to Pseudochitinopoma, based on examination of the type material. Finally, Pseudochitinopoma beneliahuae sp. nov. was described from Western Australia and the Red Sea. Reproductive patterns and phylogenetic affinities of Pseudochitinopoma spp. are discussed.

Overview of Candoninae (Crustacea, Ostracoda) of South America and the West Indies, with the description of two new species and one new genus

Zootaxa ◽  
2009 ◽  
Vol 2267 (1) ◽  
pp. 1-25 ◽  
Author(s):  
IVANA KARANOVIC ◽  
THIBAULT DATRY
Keyword(s):  
New Species ◽  
South America ◽  
West Indies ◽  
New Genus ◽  
Type Material ◽  
The West ◽  
Madre De Dios ◽  
Two New Species

The present paper contains descriptions of two new species and one new genus: Latinopsis patagonica gen. nov., sp. nov., and Candona quasiincarum sp. nov. Both species were collected during a two-month Franco-Chilean expedition to Madre de Dios archipelago in January and February 2006. The following new systematic arrangements are proposed: L. anisitsi (Daday, 1905) comb. nov., L. columbiensis (Mehes, 1914) comb. nov., and L. falclandica (Vavra, 1898) comb. nov. Latinopsis anisitsi is redescribed from the type material and a lectotype is designated. Two species are excluded from the subfamily Candoninae, one of which is Danielocandona albida (Sars, 1901). After examination of the type material the species is reclassified as Neocypridopsis albida (Sars, 1901) comb. nov. A checklist of the known species of Candoninae of South America and the West Indies is provided.

A taxonomic revision of the southern African native and naturalized species of Silene L. (Caryophyllaceae)

Bothalia ◽  
2012 ◽  
Vol 42 (2) ◽  
pp. 147-186
Author(s):  
J. C. Manning ◽  
P. Goldblatt
Keyword(s):  
New Species ◽  
Southern Africa ◽  
Morphological Variation ◽  
West Coast ◽  
Native Species ◽  
Taxonomic Revision ◽  
Western Cape ◽  
The West ◽  
Sem Micrographs ◽  
Two New Species

The native and naturalized species of Silene L. in southern Africa are reviewed, with full synonomy and the description of two new species from the West Coast of Western Cape. Eight native species and three naturalized species are recognized, including the first identification in southern Africa of the Mediterranean S. nocturna L. The identity of S. aethiopica Burm., which has remained unknown since its description, is established and is found to be the oldest name for S. clandestina Jacq. Patterns of morphological variation within each species are discussed and subspecies are recognized for geographically segregated groups of populations that are ± morphologically diagnosable. The following new names or combinations are made among the southern African taxa: S. aethiopica subsp. longiflora; S. burchellii subsp. modesta, subsp. multiflora, and subsp. pilosellifolia; S. crassifolia subsp. primuliflora; S. saldanhensis; S. rigens; and S. undulata subsp. polyantha. Each taxon is described, with information on ecology and distribution, and most species are illustrated, including SEM micrographs of the seeds.

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