Colour variation in Cadlinella ornatissima

December 26, 2000
From: Scott Johnson

Hi Bill,

Attached are some color variations of Cadlinella ornatissima found here in the Marshall Islands. Specimens from Enewetak and Kwajalein range from pale, with very light yellow dorsal color and only a trace of pink on the tubercle tips, to the more characteristic dark yellow with darker pink tips. Some, such as E047-7, can have more translucent tubercles or distinct
white spots on the yellow dorsum. The most interesting one was the single specimen I collected on my second trip to Bikini Atoll in 1982. This one, e047bik, was 11mm in length and had an interesting network of broken orangeyellow lines on the dorsum and no trace of pink on the tubercles.

In a separate message an individual (e047-3), with another colour variation, is next to its egg mass.

Johnson, S. , 2000 (Dec 26) Colour variation in Cadlinella ornatissima. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Scott,
It certainly is quite variable in colour
Bill Rudman.

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