Periclimenes imperator on mating Risbecia pulchella

August 3, 2005
From: Matan Ninio

Hi Bill,
Here is one more species to the list of hosts of Emperor shrimps. Images from Eilat, Israel (Red-sea).

Locality: South beach, Eilat. Israel. Red sea. 6 July 2005. Photographer: Raz (rubberduck) Cohen

The full sequence can be found in the Israeli slug forum at:
.
http://www.tapuz.co.il/Communa/ViewmsgCommuna.asp?Communaid=152&msgid=4644664

Matan Ninio

matan@frumhsofiotyam.diving.el.ninio.org

Ninio, M., 2005 (Aug 3) Periclimenes imperator on mating Risbecia pulchella. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14454

Dear Matan,
Thanks to you and Raz for these photos. I would very much like to see photos of this animal laying eggs. Although my message [# 9625 ] may suggest I am confident about the differences between Risbecia pulchella and R. ghardaqana, I would really like to see some photos which fit the original description of R. ghardaqana. Although your animals don't have the tongue-like purple patches extending in from the mantle edge, typical of R. pulchella, the gills certainly appear to be 'vibrating' in some of your photos, and the animal on the right in the lower photo certainly shows branched gills, typical of R. pulchella. One difference Gohar & Soliman mentions is the colour of the egg ribbons, orange in R. pulchella and white in R. ghardaqana, so photos of any yellow-spotted chromodorids laying eggs could be very interesting
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Aug 3). Comment on Periclimenes imperator on mating Risbecia pulchella by Matan Ninio. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14454

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