1: large mouth fringed by thick, yellow, outer lips on larger specimens.
2: cephalic tentacles similar colour to mantle-skirt.
3: cephalic tentacles similar colour to head.
4: when shut, large mouth is transverse, and snout folds in at posterior. Thick outer lips whitish on small specimens.
5: inner lips darker yellow. Open laterally for protrusion of radula.
6: eye is primitive (or degenerate) cavity, open to seawater and lined with black retina cell; most of eye looks grey as black-lined pit seen laterally through translucent white tentacle (view full-screen to see).

OTHER SPECIES ALBUMS
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