Funnel–mantle locking apparatus
{{Short description|Structure found in many cephalopods}}
File:Argonauta hians lock.jpg]]
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.Young, R.E., M. Vecchione & K.M. Mangold (1999). [http://tolweb.org/accessory/Cephalopoda_Glossary?acc_id=587 Cephalopoda Glossary]. Tree of Life Web Project. It consists of two interlocking components: one located on the mantle (often fibrous) and the other on the funnel (often cartilaginous). The apparatus may permit some anterior–posterior displacement or prevent movement altogether.
Function
{{expand section|what does this cephalopod structure do? how does the animal use it?|date=June 2022}}
Variability
=Funnel component=
Six major forms of the funnel locking apparatus are recognised among teuthids (lazy-T shape, inverted-T shape, straight shape, triangular shape, oval with tragus and/or antitragus, and oval shape) and several more are found in the sepioids (including the boomerang shape and keyhole shape).Young, R.E., M. Vecchione & K.M. Mangold (1997). [http://tolweb.org/accessory/Cephalopod_Funnel_Locking-Apparatus?acc_id=1973 Cephalopod Funnel Locking-Apparatus]. Tree of Life Web Project.
| class="wikitable"
!width=33% | Shape of funnel locking apparatus !width=33% | Species !width=33% | Family |
| File:Idioteuthis cordiformis7.jpg |
| File:Magnapinna talismani4.jpg |
| File:Mastigoteuthis flammea2.jpg |
| File:Mastigoteuthis glaukopis3.jpg |
| File:Mastigoteuthis grimaldii3.jpg |
| File:Mastigoteuthis magna3.jpg |
=Mantle component=
| class="wikitable"
!width=33% | Shape of mantle locking apparatus !width=33% | Species !width=33% | Family |
| File:Mastigoteuthis grimaldii4.jpg |
References
{{reflist}}
{{Cephalopod anatomy}}
{{DEFAULTSORT:Funnel-mantle locking apparatus}}