Aporrhais pespelecani (Prosobranchia) - Lokomotion

Video in TIB AV-Portal: Aporrhais pespelecani (Prosobranchia) - Lokomotion

Formal Metadata

Aporrhais pespelecani (Prosobranchia) - Lokomotion
Alternative Title
Aporrhais pespelecani (Prosobranchia) - Locomotion
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
IWF Signature
E 1108
Release Date
Silent film
Hans-Rudolf Haefelfinger
Production Year

Technical Metadata

IWF Technical Data
Film, 16 mm, 67 m ; SW, 6 1/2 min

Content Metadata

Subject Area
Arhythmische Bewegungsweise des Pelikanfußes; das Gehäuse ist auf drei Fortsätzen gelagert, Bewegung des Fußes im "Schalentunnel", Hochstemmen der Schale, die durch Schwerpunktverlagerung horizontal bewegt wird; Nachziehen des Fußes, zickzackförmige Fortbewegung.
Locomotion of the marine prosobranchiate Aporrphais pespelecani (Pelican's foot). Locomotion is not derived from typical creep movements, but from so-called "going on crutches". The shell whorls on the one hand and the shell projections on the other form a kind of tunnel in which the foot can move freely. If the foot is set down, the spiralled shell is lifted, and only the two projections prevent it from rolling over. With greater stretching of the foot, the shell tilts forward slightly and then back again to the ground. The foot is retracted and set down again a little way ahead. The result is a zig-zag form of locomotion.
Keywords Pelikanfuß Gewöhnlicher Pelikanfuß Aporrhais pespelecani Prosobranchia Fortbewegung / Mollusca walking / Mollusca going / Mollusca locomotion / Mollusca Prosobranchia Aporrhais pespelecani common pelican's foot pelican's foot