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The orange banded arion has a darkened stripe that extends along the entire body and mantle length on both sides of the body, and is gray, off-white, or tan, with a very light-colored foot. Arion fasciatus is about six centimeters in length when moving, secreting a clear mucus which is also left behind it and visible as a trail. However, when ...
The sea slugs can move toward prey or mates by using their cerata, the thin feather-like "fingers" on its body, to make slow swimming movements. [ 10 ] [ 22 ] They are known to prey on the dangerously venomous Portuguese man o' war ( Physalia physalis ), the by-the-wind-sailor ( Velella velella ), the blue button ( Porpita porpita ), and the ...
Slugs in the genus Arion have the pneumostome (respiratory pore) in the front part of the mantle and a round back without a keel. Arion rufus is one of the largest species in the genus, up to 150 mm extended. As an adult it lacks the lateral bands found in many smaller congeners, but in some forms the sides are paler than the back.
Individual slugs can be white, off-white, yellow, dark or light grey, beige, pink, red, or olive green. [4] Each of the color forms have a red (possibly orange, magenta, or maroon) triangle on the mantle surrounding the pneumostome, and a red line at the edge of the foot. The texture of the dorsum of the slug can be smooth or very rough.
Acanthodoris lutea, the orange-peel doris, is a species of nudibranch or sea slug, a shell-less marine opisthobranch gastropod mollusk in the family Onchidorididae. [2] This species is the largest of the northeastern Pacific onchidorids. [3] It is a common species, and it is very noticeable because of its bright coloration, which is aposematic.
This nudibranch displays a stunning set of colors: the body is purple, the cerata are orange and the rhinophores are scarlet. The neon orange appendages on the back of Flabellinopsis iodinea are the cerata which extract oxygen from the sea water they are surrounded by and live in. The cerata are also extensions of the digestive system, and are ...
Pitohuis, red and black birds whose toxic feathers and skin apparently comes from the poisonous beetles they ingest, could be included. [17] It has been proposed that aposematism played a role in human evolution, body odour carrying a warning to predators of large hominins able to defend themselves with weapons.
A 30–40 mm. long (exceptionally up to 50 mm) roundback slug. In colour it is grey to bluish black, with dark lateral bands (the right band usually running entirely above the pneumostome). The tentacles are bluish or reddish, and the slug bluish or orange tip at the tail. The first row of tubercles above the foot-fringe is white.