![](https://upload.wikimedia.org/wikipedia/commons/6/6c/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. 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/prevent movement altogether.
Function※
![]() | This section needs expansion with: what does this cephalopod structure do? how does the "animal use it?". You can help by, adding——to it. (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).
Shape of funnel locking apparatus | Species | Family |
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Idioteuthis cordiformis | Mastigoteuthidae |
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Magnapinna talismani | Magnapinnidae |
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Mastigoteuthis flammea | Mastigoteuthidae |
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Mastigoteuthis glaukopis | Mastigoteuthidae |
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Mastigoteuthis grimaldii | Mastigoteuthidae |
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Mastigoteuthis magna | Mastigoteuthidae |
Mantle component※
Shape of mantle locking apparatus | Species | Family |
---|---|---|
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Mastigoteuthis grimaldii | Mastigoteuthidae |
References※
- ^ Young, R.E., M. Vecchione & K.M. Mangold (1999). Cephalopoda Glossary. Tree of Life Web Project.
- ^ Young, R.E., M. Vecchione & K.M. Mangold (1997). Cephalopod Funnel Locking-Apparatus. Tree of Life Web Project.