![Eastern_Seaboard_Mollusks on Twitter: "The Ram's Horn Squid, Spirula spirula, are found in tropical and subtropical oceanic waters worldwide. This species lives deeper by day and migrates to more shallow waters to feed Eastern_Seaboard_Mollusks on Twitter: "The Ram's Horn Squid, Spirula spirula, are found in tropical and subtropical oceanic waters worldwide. This species lives deeper by day and migrates to more shallow waters to feed](https://pbs.twimg.com/media/FZvt49sWYAEsimc.jpg)
Eastern_Seaboard_Mollusks on Twitter: "The Ram's Horn Squid, Spirula spirula, are found in tropical and subtropical oceanic waters worldwide. This species lives deeper by day and migrates to more shallow waters to feed
![File:Spirula spirula (ram's horn squid shell) (San Salvador Island, Bahamas) 1 (16004012540).jpg - Wikimedia Commons File:Spirula spirula (ram's horn squid shell) (San Salvador Island, Bahamas) 1 (16004012540).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/ab/Spirula_spirula_%28ram%27s_horn_squid_shell%29_%28San_Salvador_Island%2C_Bahamas%29_1_%2816004012540%29.jpg)
File:Spirula spirula (ram's horn squid shell) (San Salvador Island, Bahamas) 1 (16004012540).jpg - Wikimedia Commons
![Diversity | Free Full-Text | The First In Situ Observation of the Ram's Horn Squid Spirula spirula Turns “Common Knowledge” Upside Down Diversity | Free Full-Text | The First In Situ Observation of the Ram's Horn Squid Spirula spirula Turns “Common Knowledge” Upside Down](https://www.mdpi.com/diversity/diversity-12-00449/article_deploy/html/images/diversity-12-00449-g001.png)