Fri 1
Jul
2005
Order: NUDIBRANCHIA
Suborder: DORIDINA
Family: Chromodorididae
This is one of a group of similarly coloured species which have been called the “Risbecia tryoni colour group”. Other species include Chromodoris geminus, Chromodoris kuniei and Chromodoris leopardus. They all have large purple or purple-brown spots or marks, usually ringed with white, an often reticulate brownish background, and a purple border. Chromodoris geminus differs in having four colour bands around the mantle edge, an outermost white, then translucent greyish purple, then white, then yellow. The other three have a distinct purple line at the border, narrow in C. leopardus and R. tryoni, but broad in C. kuniei. The shape of the body of R. tryoni, high with a reduced mantle overlap, is typical of the genus Risbecia. The three species of Chromodoris have a wide mantle overlap. Of the three with the purple mantle edge, C. leopardus and C. kuniei can be distinguished from R. tryoni by the broad purple border, consisting of three slightly different coloured bands in C. kuniei, and by the leopard-like multiple spots, or marks, forming a hollow square, found in C. leopardus.
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3 Responses to “Risbecia tryoni”
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July 1st, 2005 at 17:58:07
Hydroid yg didepan kelihatannya tajem juga… apa monitor gue mesti ganti???
July 2nd, 2005 at 10:07:26
Kayaknya dof nya melebar ke depan, gue liat penampakan disini kog tanduknya juga tajam.
December 22nd, 2005 at 22:02:08
Hydroidnya agak mengganggu