Chromodoris annae
Bergh, 1877
Order: NUDIBRANCHIA
Suborder: DORIDINA
Family: Chromodorididae
DISTRIBUTION
Tropical west Pacific and perhaps Indian Ocean.
PHOTO
UPPER: Buyong Beach, Mactan Is., Cebu, Philippines, 12-15m, April 1983. PHOTO: I.Loch.
CENTRE:Buyong Beach, Mactan Is., Cebu, Philippines, 10m, April 1983. PHOTO: I.Loch. Inset showing dark pitted surface in blue areas of mantle.
LOWER: Negros Island, Philippines, 20m, March 1983, PHOTO: B.E Picton.
This is another of the Chromodoris quadricolor colour group of species characterised by black longitudinal lines, bluish backgrounds and orange borders. This species has similarities to Chromodoris elisabethina but C. annae is characterised by the dark specks in the blue areas. The only other chromodorid with similar pitted blue regions is Chromodoris westraliensis. The animals illustrated here show the colour range within the species. The bottom animals matches best Bergh's original paintings. The orange border is just submarginal and in some specimens it is particularly faint.
Reference:
• Rudman, W.B. (1982c) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Chromodoris quadricolor, C. lineolata and Hypselodoris nigrolineata colour groups. Zoological Journal of the Linnean Society 76: 183-241.
Rudman, W.B., 1998 (November 19) Chromodoris annae Bergh, 1877. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/chroanna
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