Halosaurus

Expert review, taxon ID uncertain based on photo

Description: Halosauridae, or genus Halosaurus (single median dorsal fin, anal fin tapering to a fine tip). The snout tip is rounded and a bit inflated, consistent with genus Halosaurus, as opposed to the otherwise similar genus Aldrovandia. Item Type: Image Title: Eel Copyright: SERPENT project Species: Halosaurus sp. Behaviour: Swimming above seabed. Site: Atlantic -- South Atlantic -- Nigeria -- Usan fieldAtlantic -- Central Atlantic -- Nigeria -- Usan field Site Description: Equipment Depth (m): 750m Latitude: 3 deg 29' 00" N Longitude: 7 deg 28' 00" E Countries: North AfricaNorth Africa Habitat: Benthic Rig: Bourbon Diamond Project Partners: Total EandP Nigeria, Bourbon, Oceaneering ROV: Millennium 73 Deposited By: Mr R Curry Deposited On: 08 December 2009

Description: 600 - 1000 mm length. A Halosauridae. Brain not visible. Item Type: Image Title: Halosaurus Copyright: SERPENT project Species: Halosaurus sp. Behaviour: Swimming above the seabed. Site: Atlantic -- South Atlantic -- Nigeria -- Akpo fieldAtlantic -- Central Atlantic -- Nigeria -- Akpo field Site Description: Seafloor Depth (m): 1366m Latitude: 3 deg 07' 00" N Longitude: 6 deg 49' 00" E Countries: West Africa -- Nigeria Habitat: Benthic Rig: Jack Ryan Project Partners: Total, Transocean, Oceaneering ROV: Millennium 43 Deposited By: Mr R Curry Deposited On: 09 December 2009

Description: 600 - 1000 mm length. Not a Synaphobranchidae, but a Halosauridae, of either the genus Halosaurus or Aldrovandia. If we had a better image, I could zoom in on the top of the head to see if scales are present (Halosaurus) or absent (Aldrovandia). However, since the brain is visible through the occipital 'window', scales are probably absent. Item Type: Image Title: Halosaurus Copyright: SERPENT project Species: Halosaurus sp. Behaviour: Swimming above the seabed. Site: Atlantic -- South Atlantic -- Nigeria -- Akpo fieldAtlantic -- Central Atlantic -- Nigeria -- Akpo field Site Description: Seafloor Depth (m): 1366m Latitude: 3 deg 07' 00" N Longitude: 6 deg 49' 00" E Countries: West Africa -- Nigeria Habitat: Benthic Rig: Jack Ryan Project Partners: Total, Transocean, Oceaneering ROV: Millennium 43 Deposited By: Mr Rob Curry Deposited On: 14 December 2009

Description: Halosaurus johnsonianus. Date: 1888. Source: Éxpeditions scientifiques du Travailleur et du Talisman pendant les années 1880, 1881, 1882, 1883 Vaillant Léon, 1834-1914. Author: Bideault. : This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Restoration. Modifications made by Citron.

Description: Halosaurus johnsonianus. Date: 1896. Source: Résultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco Fascicule X, Albert I, Prince of Monaco, 1848-1922 url. Author: Carl Nielsen.

Description: Halosaurus ovenii. Date: 1888. Source: Éxpeditions scientifiques du Travailleur et du Talisman pendant les années 1880, 1881, 1882, 1883 Vaillant Léon, 1834-1914. Author: Bideault. : This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Restoration. Modifications made by Citron.

Lateral. Catalog no.: IBUNAM-16533. Specimen ID: 2011707. Field no.: COBERPES X2. Taxon rep.: Halosaurus aff. guentheri. Image quality: 1. Aspect ratio: 1.333.

Lateral. Catalog no.: USNM 421275. Specimen ID: 2704963. Field no.: MOP110261. Taxon rep.: Halosaurus radiatus. Image quality: 1. Aspect ratio: 1.499.

Lateral. Catalog no.: USNM 421547. Specimen ID: 2705070. Field no.: MOP110368. Taxon rep.: Halosaurus attenuatus. Image quality: 1. Aspect ratio: 1.499.