A new species of Simulium (Eusimulium) from St. Helena Island, South Atlantic (Diptera: Simuliidae)

2009 ◽  
Vol 34 (3-4) ◽  
pp. 33-37
Author(s):  
R. W. Crosskey
Keyword(s):  
New Species ◽  
South Atlantic ◽  
St Helena ◽  
A New Species

scholarly journals Bryophytes of St. Helena, South Atlantic Ocean. 7. Cylindrocolea (Jungermanniales, Cephaloziellaceae): C. Sanctae-Helenae M. Wigginton Sp. Nov.

2013 ◽  
Vol 58 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Martin J. Wigginton
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
First Report ◽  
The Family ◽  
St Helena ◽  
A New Species

Abstract A new species of Cylindrocolea R. M. Schust. from St. Helena, C. sanctae-helenae M. Wigginton, sp. nov. is described and illustrated. This is the first report of the family Cephaloziellaceae from the island.

Halichoeres sazimai, a new species of wrasse (Perciformes: Labridae) from the Western South Atlantic

Zootaxa ◽  
2009 ◽  
Vol 2092 (1) ◽  
pp. 37-46 ◽  
Author(s):  
OSMAR J. LUIZ ◽  
CARLOS E. L. FERREIRA ◽  
LUIZ A. ROCHA
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
Cytochrome B ◽  
South Atlantic ◽  
Sister Species ◽  
Santa Catarina ◽  
Western Atlantic ◽  
Rocky Reefs ◽  
Color Differences ◽  
A New Species

Halichoeres sazimai, n. sp. is described from the Western South Atlantic. During many years it was misidentified as H. bathyphilus from the Northwestern Atlantic, but it can be distinguished from the latter by striking color differences between the two species, with H. sazimai being characterized by a white body with a midline, zigzag patterned stripe on body, black and brownish in terminal males and yellow or golden in females and juveniles. Preserved specimens can also be distinguished by the visible mid-body stripe in H. sazimai, which disappears in H. bathyphilus. Diagnostic differences in the mitochondrial DNA cytochrome b gene separate H. sazimai from all other Western Atlantic labrids, with H. bathyphilus being its sister species. Individuals of H. sazimai were observed living on the deeper parts (20-40 m) of rocky reefs and sand bottoms, apparently associated with water temperatures lower than 18°C. This species is currently known from the southeastern and southern coasts of Brazil, from Espírito Santo to Santa Catarina States.

scholarly journals Ligophorus uruguayense sp. nov. (Monogenea, Ancyrocephalidae), a gill parasite from Mugil platanus (Mugiliformes, Mugilidae) in Uruguay

2009 ◽  
Vol 54 (2) ◽  
Author(s):  
Gabriela Siquier ◽  
Margarita Núñez
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Geographical Distribution ◽  
Host Species ◽  
Accessory Piece ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
The South ◽  
Gill Parasite ◽  
A New Species

AbstractThe present study describes a new species, Ligophorus uruguayense, parasitizing the gills of Mugil platanus Günther, 1880 from the coast of Uruguay. It differs from all other species of the genus mainly in the shape of the ventral bar, the thick process at the distal end of the inner root of ventral anchors, the J-shaped penis accessory piece and the vaginal tube showing transverse annulations at its distal end, the host species, and geographical distribution. This is the first description of a species of Ligophorus from a mullet in the South Atlantic Ocean.

Taxonomy of the Passerina filiformis complex (Thymelaeaceae)

Bothalia ◽  
2002 ◽  
Vol 32 (1) ◽  
pp. 29-36
Author(s):  
C. L. Bredenkamp ◽  
A. E. Van Wyk
Keyword(s):  
New Species ◽  
Leaf Anatomy ◽  
Wide Distribution ◽  
Eastern Cape ◽  
The South ◽  
The North ◽  
Cape Peninsula ◽  
Great Escarpment ◽  
St Helena ◽  
A New Species

Revision of the genus Passerina L. indicated a new delimitation of taxonomic entities within the Passerina filiformis L. complex. Evidence from leaf anatomy greatly assisted in the recognition of taxa.  P. filiformis is here divided into two sub­species. namely P. filiformis subsp.  filiformis and P. filiformis subsp. glutinosa (Thoday) Bredenkamp A.E.van Wyk. and a new species. P. montivagus Bredenkamp A.E.van Wyk, which is also described. The new taxa are geographically separated: subsp. filiformis ranges from Piquetberg in the north through the Cape Peninsula in the south, where it is quite com­mon. to Attaquaskloof in the southwestern Cape: subsp. glutinosa occurs along the coast between Vredendal and St Helena Bay; and  P. montivagus has a wide distribution from Mossel Bay and Oudtshoom in the south through Eastern Cape and along the Great Escarpment northwards to Zimbabwe, with outliers in Tanzania.

scholarly journals Cyperus stroudii (CYPERACEAE), a new species from Ascension Island, South Atlantic Ocean

Phytotaxa ◽  
2017 ◽  
Vol 331 (1) ◽  
pp. 65 ◽  
Author(s):  
ALAN GRAY ◽  
GAIL STOTT
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Environmental Conditions ◽  
Morphological Characteristics ◽  
Common Garden ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Herbarium Specimens ◽  
Ascension Island ◽  
A New Species

Material from the Cyperus appendiculatus group was collected from Ascension Island and compared using a common garden study and to herbarium specimens from throughout the geographical range. Cyperus stroudii is described as a new species, known only from Ascension Island in the South Atlantic Ocean, it closest relative is C. appendiculatus also native to Ascension Island and Brazil. Cyperus stroudii differs from C. appendiculatus in its dwarf habit and other morphological characteristics, and these characteristics are retained under common environmental conditions indicative of genomic differences.

A new species and hybrid in the St Helena endemic genus Trochetiopsis

1995 ◽  
Vol 52 (2) ◽  
pp. 205-213 ◽  
Author(s):  
Q. C. B. Cronk
Keyword(s):  
New Species ◽  
Natural History ◽  
Chromosome Counts ◽  
History Museum ◽  
Oxford University ◽  
Herbarium Collections ◽  
St Helena ◽  
First Time ◽  
A New Species ◽  
First Descriptions

The discovery in historic herbaria of an overlooked extinct endemic from the island of St Helena is reported. The first descriptions of St Helena Ebony, Trochetiopsis melanoxylon (Sterculiaceae), and the specimens associated with them in the herbaria of Oxford University (OXF) and the Natural History Museum, London (BM), do not match living and later-collected material, and instead represent an extinct plant. A new name is therefore needed for living St Helena Ebony: Trochetiopsis ebenus Cronk sp. nov. The hybrid between this species and the related T. erythroxylon is also described here: Trochetiopsis × benjamini Cronk hybr. nov. (Sterculiaceae), and chromosome counts of 2n = 40 are reported for the hybrid and both parents for the first time. The re-assessment of the extinct ebony emphasizes the importance of historic herbarium collections for the study of species extinction.

A new species of Sporobolus (Poaceae, Chloridoideae) from Trindade Island, Brazil, with comments on the distribution of the genus in the South Atlantic

Phytotaxa ◽  
10.11646/1132 ◽  
2013 ◽  
Vol 144 (1) ◽  
pp. 13
Author(s):  
Hilda Maria Longhi-Wagner ◽  
Ruy José Válka Alves ◽  
Nílber Gonçalves da Silva ◽  
Alessandra Ribeiro Guimarães
Keyword(s):  
New Species ◽  
South Atlantic ◽  
The South ◽  
Trindade Island ◽  
A New Species
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