Further observations on the type subgenus of Pyramimonas (Prasinophyceae), with particular reference to a new species, P. chlorina, and the flagellar apparatus of P. propulsa

1997 ◽  
Vol 75 (12) ◽  
pp. 2196-2215 ◽  
Author(s):  
Stuart D. Sym ◽  
Richard N. Pienaar
Keyword(s):  
New Species ◽  
Key Words ◽  
South African ◽  
Flagellar Apparatus ◽  
Primitive Form ◽  
Unique Structure ◽  
Inshore Waters ◽  
Microtubular Roots ◽  
A New Species

A new quadriflagellate species of Pyramimonas isolated from South African inshore waters is described. It has ultrastructural features most consistent with the subgenus Pyramimonas McFadden. The flagellar apparatus of this organism is basically of the 3-1 type, but a unique structure, which may be considered a homologue of the R2-associated fiber found in Pterosperma cristatum, is associated with the 1s root. It thus could be construed as an alternate primitive form of the genus to Pyramimonas mucifera Sym & Pienaar. The flagellar apparatus of Pyramimonas propulsa Moestrup & Hill has surprising differences to that of Pyramimonas octopus Moestrup. Hori, & Kristiansen, particularly with regard to the microtubular roots and the distal fibrillar bands. Features of these two species, together with those extracted from the literature, show a considerable overlap between the subgenera Pyramimonas and Punctatae but, ironically, it is considered inappropriate at this time to combine the two subgenera because of anomalies exhibited by the new species. Key words: flagellar apparatus, Pyramimonas subgen. et gen., P. chlorina sp.nov., P. longicauda, ultrastructure.

Erigeron cabelloi A. Pujadas, R. García-Salmones & E. López (Asteraceae) nueva especie del Pirineo. Erigeron cabelloi A. Pujadas, R. García-Salmones & E. López (Asteraceae) a new species from the Pyrennees

2019 ◽  
Vol 37 ◽  
pp. 211-215
Author(s):  
Antonio J. Pujadas Salvà ◽  
Raúl García-Salmones ◽  
Eusebio López Nieto
Keyword(s):  
New Species ◽  
Key Words ◽  
Palabras Clave ◽  
A New Species

Erigeron cabelloi A. Pujadas, R. García-Salmones & E. López (Asteraceae) a new species from the Pyrennees. Palabras clave. Andorra, Compositae, Corología, Erigeron neglectus, Flora Ibérica. Key words. Andorra, Chorology, Compositae, Erigeron neglectus, Iberian Flora.

A new species of Odontepyris (Hymenoptera: Bethylidae: Bethylinae) from East Asia

2021 ◽  
Vol 23 (1) ◽  
pp. 9-16
Author(s):  
RYUDAI ITO ◽  
TOSHIHARU MITA
Keyword(s):  
New Species ◽  
South Korea ◽  
East Asia ◽  
Key Words ◽  
Wing Venation ◽  
Palaearctic Species ◽  
Key To Species ◽  
Morphological Variations ◽  
Median Area ◽  
A New Species

Odontepyris costatus sp. nov. is described from Japan and Taiwan. This new species is most similar to O. formosicola Terayama, 1997 known from Cambodia and Taiwan according to the key to the Eastern Palaearctic Odontepyris. O. costatus sp. nov. can be distinguished from the latter by the relatively small eye and the wide metapectal-propodeal disc. It is also similar to O. telortis Lim & Lee, 2009 known from South Korea, but it is distinguished from O. telortis by the imbricate median area of metapostnotum. The morphological variations and diagnostic characters of the Eastern Palaearctic species are briefly discussed and the modified key to species is provided. Key words: new species, Japan, Taiwan, wing venation

A new species of Phialocephala (Hyphomycetes)

1992 ◽  
Vol 70 (12) ◽  
pp. 2484-2489 ◽  
Author(s):  
Amanda L. Siegfried ◽  
Keith A. Seifert ◽  
Barton C. Bilmer
Keyword(s):  
New Species ◽  
Key Words ◽  
Bright Green ◽  
Low Levels ◽  
A New Species

A new species in the Hyphomycete genus Phialocephala is described. The new species Phialocephala virens produces an intense greyish green to turquoise colour on certain media and has smaller conidia, shorter phialides, and shorter conidiophores than previously described Phialocephala species. Its tolerance to low levels of the antibiotic cycloheximide suggests the fungus may have affinities with species of Ophiostoma. Cultures of the fungus cause a bright green stain when inoculated onto sapwood of some conifers. Key words: Phialocephala virens, new species, Hyphomycetes, sapstain.

Studies in the liverwort genus Riccia (Marchantiales) from the south-west Cape

Bothalia ◽  
1984 ◽  
Vol 15 (1/2) ◽  
pp. 117-124 ◽  
Author(s):  
O. H. Volk ◽  
S. M. Perold
Keyword(s):  
New Species ◽  
The South ◽  
Unique Structure ◽  
South West ◽  
A New Species

A new species of Riccia, R. parvo-areolata Volk Perold, as well as sporophytes and spores of R. villosa Steph. ex Brunnthaler, are described. Earlier descriptions of R. villosa were based on sterile plants. The unique structure of the dorsal epithelium consisting of loose cell pillars in these two species (and also present in allied species grouped together in the section Pilifer) is described and illustrated.

A new crab-associated amphipod of the genus Isaeopsis Barnard, 1916 (Amphipoda: Senticaudata: Ischyroceridae) from southern Chile

Zootaxa ◽  
2020 ◽  
Vol 4861 (1) ◽  
pp. 107-119
Author(s):  
JORGE PÉREZ-SCHULTHEISS ◽  
LUIS MIGUEL PARDO
Keyword(s):  
New Species ◽  
South African ◽  
Southern Chile ◽  
The Family ◽  
A New Species

A new species of amphipod of the family Ischyroceridae is described. Isaeopsis chiloensis n. sp. was discovered in association with the cancrid species Metacarcinus edwardsii and Romaleon setosum, in the inner sea around Chiloé Island, in Southern Chile. This represents the second species of the genus Isaeopsis, a group formerly known only from South African waters.                The new species is characterized principally by the structure of the gnathopods, the propodus of pereopods 3–7 and the ornamentation of the outer ramus of uropod 3. The male gnathopod 2 has a prominent thumb in the posteroproximal margin of the propodus and the pereopods 3–7 are subchelate with the palm armed by a row of at least five strong setae. In addition, the apex of the outer ramus of uropod 3 bears a comb with more than thirty fine teeth. Isaeopsis chiloensis n. sp. is completely described and a series of illustrations is provided. 

scholarly journals Revision of Bairdiella (Sciaenidae: Perciformes) from the western South Atlantic, with insights into its diversity and biogeography

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Alexandre Pires Marceniuk ◽  
Eduardo Garcia Molina ◽  
Rodrigo Antunes Caires ◽  
Matheus Marcos Rotundo ◽  
Wolmar Benjamin Wosiacki ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Species Complex ◽  
Atlantic Coast ◽  
Geographic Range ◽  
Molecular Evidence ◽  
Western Atlantic ◽  
Taxonomic History ◽  
Inshore Waters ◽  
A New Species

ABSTRACT The sciaenid genus Bairdiella comprises a group of relatively small fishes found in inshore waters and estuaries of the western Atlantic and eastern Pacific. Despite recent analyses of the phylogenetic relationships of Bairdiella, there has been no comprehensive revision of the alpha taxonomy of the species of the genus. Bairdiella ronchus from the western Atlantic, has a complex taxonomic history, with four junior synonyms recognized. Based on morphological and molecular evidence, this study indicates that B. ronchus represents a species complex. The species is therefore redescribed and its geographic range is redefined. Bairdiella veraecrucis, which is currently recognized as a junior synonym of B. ronchus, is revalidated, and a new species of the genus is described from the Atlantic coast of Brazil. Finally, inferences are made on the diversity and biogeography of the B. ronchus species complex.

A new species group of the genus Trechosia from the Cape region of South Africa (Coleoptera, Carabidae, Trechinae)

Zootaxa ◽  
2007 ◽  
Vol 1469 (1) ◽  
pp. 43-50
Author(s):  
GERNOT GEGINAT
Keyword(s):  
South Africa ◽  
New Species ◽  
South African ◽  
Species Group ◽  
The South ◽  
Species Groups ◽  
A New Species

Trechodes intermedia sp. nov. and T. kogelbergensis sp. nov. are described from South Africa. A third species, T. humeralis (Jeannel, 1930) comb.nov. is transferred to Trechosia Jeannel from the genus Cothresia Jeannel. All three species are macropterous, endemic to the South African Cape region, and together represent a new species group of the genus Trechosia. Keys to the species groups of the genus Trechosia and to the species of the new T. intermedia group are provided.

THE MASCARENE MARTIN PHEDINA BORBONICA (GMELIN) IN MOZAMBIQUE: A NEW SPECIES TO THE SOUTH AFRICAN LIST

Ostrich ◽  
1969 ◽  
Vol 40 (1) ◽  
pp. 5-8
Author(s):  
P. A. Clancey ◽  
Walter J. Lawson ◽  
Michael P. Stuart Irwin
Keyword(s):  
New Species ◽  
South African ◽  
The South ◽  
A New Species

Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus

1978 ◽  
Vol 35 (9) ◽  
pp. 1223-1233 ◽  
Author(s):  
Lesley C. Fleming ◽  
Michael D. B. Burt
Keyword(s):  
New Species ◽  
Key Words ◽  
Type Material ◽  
Present Material ◽  
Chionoecetes Opilio ◽  
The Family ◽  
Hyas Araneus ◽  
First Time ◽  
A New Species ◽  
Egg Capsule

Ectocotyla hirudo (Levinsen, 1879) is redescribed and recorded for the first time from the gills and branchial chambers of Chionoecetes opilio and Hyas araneus. Problems arising from previous descriptions are resolved through comparison of freshly collected material, at different times of the year, with type material of Coleophora sp. and the type material of E. paguri Hyman, 1944, both of which are shown to be identical to the present material. Accordingly, E. paguri Hyman, 1944 is regarded as a junior synonym of E. hirudo (Levinsen, 1879). A new species, E. multitesticulata, is described and recorded also from C. opilio and H. araneus. Ectocotyla multitesticulata differs from E. hirudo primarily in the larger size of the worm, the greater number and size of the testes, the size of the egg capsule, and in the differences of the karyotype. The genus Ectocotyla is discussed in relation to closely related genera (Peraclistus, Minona, and Preminona) in the family Monocelididae. Key words: turbellarian systematics, Proseriata, Monocelididae, Ectocotyla, crab commensal

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