Hoplodoris hansrosaorum
Dominguez, Garcia & Troncoso, 2006

Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: EUDORIDOIDEA
Family: Dorididae

PHOTO

Holotype. Intertidal zone, Ilha de Cabo Frio, Arraial do Cabo, Brazil, 28 July 1999. 27 mm long alive. Photo: F.J. García & J.S. Troncoso

This species is based on a single specimen. Oval shaped dorid with mantle covered with rounded tubercles. The cenetral part of the mantle is orange-brown, while towards the edge it becomes a palre whitish-orange. There are scattered orange-brown patches on the mantle amongst the rounded tubercles. The larger tubercles have an opaque white basal ring and the tip of each tubercle is pale-orange. The rhinophores are orange, with a pale-cream tip, There are six tripinnate gills. In the description the anterior gills are described as yellowish-cream and the two posterior ones orange, but it is more likely that the gills are like some of the Indo-West Pacific species in which the outside of the gills are whitish and the inside is orange. The mantle underside is whitish, with several brown orange spots on each side of foot. Living animal measured 27 mm in length. This species is named after Hans Bertsch, and his wife Rosa.

  • Domínguez, M., García, F.J. & Troncoso, J.S. (2006) A new species of Hoplodoris Bergh, 1880 (Gastropoda: Opisthobranchia: Nudibranchia) from the Atlantic Ocean  The Nautilus, 120 (4) 150-155.
Authorship details
Rudman, W.B., 2007 (May 8) Hoplodoris hansrosaorum Dominguez, Garcia & Troncoso, 2006. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/hoplhans

Related messages


Hoplodoris hansrosaorum from Florida

October 16, 2009
From: Anne DuPont


Concerning message #21816:

Hello Bill,
How are you and things at the Museum?

Last month I was delighted to find Hoplodoris hansrosaorum here in Florida. This is quite a range extension. (Brazil, Bonaire, and now Florida).

I send the photos to Dr. Hans Bertsch and Dr. Angel Valdes for confirmation. Dr Bertsch send the photos to Francisco J. Garcia and Jesus Troncoso for their confirmation and information.

I was able to go back to the dive site the next day and found the animal and photographed it again. A week later, I was not able to find it.

Locality: Lake Worth Lagoon Palm Beach, , 20 feet, Florida, USA, Atlantic Ocean, 11 July 2009, Interdtidal. Length: 25 mm. Photographer: Anne DuPont .

Cordially,
Anne DuPont
Delray Beach, FL

akdupont@bellsouth.net

DuPont, A., 2009 (Oct 16) Hoplodoris hansrosaorum from Florida. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22595

Dear Anne,

This is an interesting find. Thanks for re-sending the photos which got lost in your original post a few days ago. I am re-posting your message with the photos so no-one misses them.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Oct 16). Comment on Hoplodoris hansrosaorum from Florida by Anne DuPont. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22595

Hoplodoris hansrosaorum from Bonaire, Caribbean

August 22, 2008
From: Jean-Sebastien Morisset

Here's one which looks like a Hoplodoris which we took in Bonaire, at the Town Pier in May 2008.

Locality: Town Pier, 15 feet, length approx 4 cm., Bonaire,  Netherlands Antilles, Caribbean, Atlantic. 25 May 2008.

Jean-Sebastien Morisset

jsmoriss@mvlan.net

J.S. Morisset, 2008 (Aug 22) Hoplodoris hansrosaorum from Bonaire, Caribbean. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21816

BonaireDear JS,

This is an interesting find. I am pretty sure this is the recently named species, Hoplodoris hansrosaorum, which is at present only known from Brazil. There is a photo of a Hoplodoris from Jamaica and the Cayman Islands in  Caribbean Sea Slugs, which may be the same species, but considering how difficult it is to separate some of the Indo-West Pacific species from photos, I guess any identifications will need to be tentative until we know if there is more than one species of Hoplodoris in the western Atlantic.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Aug 22). Comment on Hoplodoris hansrosaorum from Bonaire, Caribbean by Jean-Sebastien Morisset. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21816

Hoplodoris hansrosaorum from Brazil

May 8, 2007
From: Bill Rudman

The first species of Hoplodoris from the Atlantic has recently been described from a specimen collected from Ilha de Cabo Frio, Brazil.

Photo: Intertidal zone, Ilha de Cabo Frio, Arraial do Cabo, Brazil, 28 July 1999. 27 mm long alive. Holotype. Photo: F.J. García & J.S. Troncoso

 It is named H. hansrosaorum after Hans Bertsch who has studied nudibranchs for many years, and his wife Rosa. In a recent email to me, Hans expressed both surprise and delight.

  • M. Domínguez, F. J. García & J. S. Troncoso. (2006) A new species of Hoplodoris Bergh, 1880 (Gastropoda: Opisthobranchia: Nudibranchia) from the Atlantic Ocean: 150-155  The Nautilus, 120 (4) 150-155.

Bill Rudman

Rudman, W.B., 2007 (May 8) Hoplodoris hansrosaorum from Brazil. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19885