Sur le groupe de Flabellipecten flabelliformis; signification du terme "groupe"

1943 ◽  
Vol S5-XIII (4-6) ◽  
pp. 181-192
Author(s):  
Jean Roger

Abstract Describes Flabellipecten arambourgi n.sp. from Pliocene deposits of Oran, Algeria, and discusses its affinities with members of the F. flabelliformis group, to which it is assigned. Criteria for erecting and defining groups are also discussed, and it is concluded that similarities of morphology and stratigraphic and geographic distribution of closely related species warrant the establishment of groups.

Zootaxa ◽  
2011 ◽  
Vol 2791 (1) ◽  
pp. 30 ◽  
Author(s):  
YURI L. R. LEITE ◽  
VILACIO CALDARA JÚNIOR ◽  
ANA CAROLINA LOSS ◽  
LEONORA PIRES COSTA ◽  
ÉVERTON R. A. MELO ◽  
...  

The Brazilian porcupine was one of several species described and illustrated by the 17 th -century naturalist Georg Marcgrave, whose text was among the primary references upon which Linnaeus based his Hystrix prehensilis. As currently understood, Coendou prehensilis is a wide-ranging polytypic taxon that has never been revised and may represent a complex of closely related species. Given that no name-bearing type specimen of C. prehensilis is believed to be extant, and in order to avoid ambiguous application of this name, we designate a specimen collected at the type locality in Pernambuco, northeastern Brazil, as the neotype for Hystrix prehensilis Linnaeus. The geographic distribution of mitochondrial DNA haplotypes suggests that specimens from west-central Brazil previously identified as “Coendou prehensilis” belong to a different species, but only a comprehensive taxonomic revision of the genus will shed light on species limits and the geographic ranges of C. prehensilis and other congeneric forms.


2015 ◽  
Vol 8 ◽  
Author(s):  
Mustapha Hassoun ◽  
Hanaa Moussa ◽  
Hanaa Zbakh ◽  
Hassane Riadi ◽  
Mohamed Kazzaz ◽  
...  

A red algal species,Polyneura bonnemaisonii(Delesseriaceae, Rhodophyta), is described for the first time in the Atlantic Ocean of Morocco. This is also the first reference of the occurrence of this species in Africa. This species was collected in the lower intertidal to subtidal zones, from Hyayda (north-west of Morocco). The Moroccan specimen is studied in detail and compared with other closely related species. Habitat, geographic distribution, description and illustration of the macroscopic and microscopic characters are presented and discussed in this work.


Crustaceana ◽  
1996 ◽  
Vol 69 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Marta Carola ◽  
Claude Razouls

AbstractFifteen specimens of Ridgewayia marki minorcaensis n. ssp., collected from Calan Porter Cave, Minorca (western Mediterranean) on 18 July, 1988, are compared with closely related species. The presence of a hitherto undescribed structure on the basis of the right fifth leg of the male justifies establishing a new subspecies. This is the second record of this species, next to that from the Bermuda islands, and thus represents an interesting geographic distribution. The presence, in the same cave, of Exumella polyarthra Fosshagen, 1970, until now found only in the Bahamas, might pose the hypothesis of a relict character of these Mediterranean populations.


Zootaxa ◽  
2010 ◽  
Vol 2396 (1) ◽  
pp. 50 ◽  
Author(s):  
EDUARDO SANABRIA ◽  
LORENA QUIROGA ◽  
FEDERICO ARIAS ◽  
RICARDO CORTEZ

A new species of bufonid frog, Rhinella bernardoi sp. nov., belonging to the granulosa group, is described from moderately high elevation (1400 m) at Ischigualasto Provincial Park, San Juan, Argentina. The morphology of the new species is compared to and diagnosed from other closely related species of the same group (R. bergi, R. fernandezae, and R. granulosa). We also describe the osteology of the skull and the vertebral column of the new species and present data on its geographic distribution and natural history.


1907 ◽  
Vol 41 (484) ◽  
pp. 207-240 ◽  
Author(s):  
Robert Greenleaf Leavitt

Lankesteriana ◽  
2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Stig Dalström

A new species of Odontoglossum from a limited area in western Ecuador is described, illustrated with a line drawing and color photographs, and compared with apparently closely related species, which are illustrated with color photographs. The new species differs from them all by a combination of features, such as the limited geographic distribution, frequently purple mottled pseudobulbs, a broadly pandurate lip lamina and widely spreading purple striped callus keels on the lip. 


Zootaxa ◽  
2008 ◽  
Vol 1939 (1) ◽  
pp. 38-50 ◽  
Author(s):  
JOSÉ ALEJANDRO SCOLARO ◽  
NORA RUTH IBARGÜENGOYTÍA

A new species, Phymaturus sp. nov. is described as a new member of the Phymaturus patagonicus group of patagonian geographic distribution. It is distinguished by having flat imbricate superciliaries rather than rectangular and non-overlapping, and slightly spiny caudal scales in verticilles. Additionally, the subocular scale is fragmented and separated from the supralabials by two rows of lorilabials (as in most species of the palluma group). The species may be distinguished from other members of the patagonicus group by having metric and meristic differences, as well as a peculiar color pattern characterized by a notorious polychromatism. It lives at about 1000 m of altitude in rocky outcrops near Comallo, in southwestern Rio Negro Province, Argentina. The new species and the closely related species of the patagonicus group are morphologically compared, and its distribution and natural history are described.


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