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| Jaume, Damià; Wagner, H.P.. |
| Two new stygobiont amphipods are described from anchialine caves located in the Jaragua region (Pedernales Prov., Dominican Republic, Hispaniola). Ottenwalderia kymbalion gen. et sp. nov. is the first lysianassoid known to have penetrated into completely fresh waters, and the fourth colonizing hypogean habitats. Bahadzia jaraguensis sp. nov. is the second representative of this West Indian thalasso-stygobiont genus to be reported from fresh waters; it exhibits the most troglomorphic aspect (i.e. elongation of first antennae and sixth pereiopods) recorded for the genus. Its diagnosis is complemented with a key to the species of the genus Bahadzia. The in situ swimming behaviour of both taxa is briefly described. It is postulated that both amphipods share a... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Amphipoda; Ottenwalderia; Gen. nov.; Bahadzia; Anchialine caves; Stygobionts; Taxonomy; Biogeography. |
| Ano: 1998 |
URL: http://www.repository.naturalis.nl/record/534346 |
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| Afonso, Odette; Henry, Jean-Paul; Magniez, Guy. |
| From now on, the genus Bragasellus Henry & Magniez, 1968 includes 2 oculated and 17 stygobiotic species. As a natural and monophyletic taxonomic unit, we consider it a good genus. Its original area corresponds to the north-west quarter of the Iberian Peninsula. Secondarily, this area has extended eastward, using mainly the alluvial channels of hydrographic systems (Ríos Douro + Ebro and tributaries), finally reaching the underground waters of several Mediterranean rivers. This active expansion is exclusively due to the migration of two stygobiotic sibling species: B. lagari Henry & Magniez, 1973 towards the high basin of the Río Tajo, then downstream to the basins of the Ríos Jucar and Turia (Prov. Valencia); and B. lagarioides n. sp., downstream... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Bragasellus; Stygobionts; Active expansion; Recent alluvial deposits; Taxonomy; New species; Zoogeography; Iberian Peninsula. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/504446 |
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