Nomeus gronovii , pg 251 from The Fishes of North Carolina (1907) by Hugh McCormick Smith, 1865-1941.
Publisher: Raleigh, N. C. : E. M. Uzzell
Contributing Library: Cornell University Library
Date 1 January 1907
Source https://www.flickr.com/photos/internetarchivebookimages/20727750566/
Author Internet Archive Book Images
Source: https://commons.wikimedia.org/wiki/File:Nomeus_gronovii_north_carolina.jpg

The man-of-war fish or bluebottle fish (Nomeus gronovii) is a species of fish in the family Nomeidae, the driftfish. It is native to the Atlantic, Pacific and Indian Oceans. It is notable for its ability to live within the deadly tentacles of a siphonophore, the Portuguese man o' war, upon whose tentacles and gonads it feeds.