Saturday, October 26, 2013

Spectrolebias filamentosus - Rediscovered


In April 2008, I went to the terra typica of Spectrolebias filamentosus only to find the habitat destroyed. In February 2011 I finally found a new habitat 100 km north of the terra typica, but was unsuccessful in reproducing the fishes in sufficient quantities. In February 2013, I returned again to the same location and was finally successful in reproducing this wonderful species. All the photos are from a location called Poza Honda; collection codes: RDB 2011/03 and BP 2013-02. Enjoy!!


Habitat in 2011


Male and female from 2011


Original description from 1996, photo 1


Original description from 1996, photo 2


Young F1 male and female


The same young F1 male


Another F1 male and female


F1 Female (notice blue in fins and body)


Habitat road, 2013


Habitat in 2013

Thursday, July 25, 2013

Neofundulus splendidus - New Species


On July 19, 2013, a new species of South American Annual Killifish from Bolivia was described and published, Neofundulus splendidus. Here are some photos of this new species.

Nielsen, D.T.B. & Brousseau, R. (2013): Description of a new species of annual fish of the genus Neofundulus (Cyprinodontiformes: Rivulidae) from the upper río Mamoré basin, Bolivia. Aqua, International Journal of Ichthyology, 19 (3): 109-114.

Holotype male from collection location BFB 12/05. Photo by Guillaume Dethu
 
Photo by Didier Pilleti

Spectrolebias pilleti - New Species


On July 19, 2013, a new species of South American Annual Killifish from Bolivia was described and published, Spectrolebias pilleti. Here are some photos of this new species.

Nielsen, D.T.B. & Brousseau, R. (2013): Spectrolebias pilleti, a new annual Killifish (Cyprinodontiformes: Rivulidae: Cynolebiatinae) from the upper río Mamoré basin, Bolivia. Aqua, International Journal of Ichthyology, 19 (3): 115-122.

A wild male from the terra typica location, BP 2013-08

A wild male from another location, BP 2013-10

Tuesday, July 23, 2013

Spectrolebias brousseaui - New Species


On March 31, 2013 a new species of South American Annual Killifish from Bolivia was described and published, Spectrolebias brousseaui. Here are some photos of this new species.

Nielsen, D.T.B. (2013): Spectrolebias brousseaui (Cyprinodontiformes: Rivulidae: Cynolebiatinae), a new annual fish from the upper río Mamoré basin, Bolivia. Neotropical Ichthyology, 11 (1): 81-84.


Wild male and female, RDB 2008/02; original material.

A photo taken in April 2008 showing the terra typica location, RDB 2008/02.
Showing colors of a wild male from terra typica, location RDB 2011/01.

An out of focus photo of the same male showing coloration of the spots and flared dorsal and anal fins.

A young wild male that was collected in February 2013 (BP 2013-12). This is a new location and is non terra typica. It is normal for young males to show a red coloration to the fins. This will disappear with age.

Collection location BP 2013-12.