Funnel–mantle locking apparatus
Structure found in many cephalopods / From Wikipedia, the free encyclopedia
The funnel–mantle locking apparatus is a structure found in many cephalopods that connects the mantle and hyponome (funnel) and restricts their movement relative to each other.[1] It consists of two interlocking components: one located on the mantle (often fibrous) and the other on the funnel (often cartilaginous).[1] The apparatus may permit some anterior–posterior displacement or prevent movement altogether.[1]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/6/6c/Argonauta_hians_lock.jpg)