Sharkbacks

The Sharkbacks were an army formed after the Battle of Sraph Bay, consisting of the 10th-19th Naval Divisions under Admiral Loethaec and the 100th-109th Aerial Divisions under Aermiral-Commandant Thrasgream. All Sharkbacks had necklaces with a sharks vertrebrae, with a rank system later updated so the number of shark teeth signified rank.

Differences
The Sharkbacks were different from the normal sailors and airmen due to several things. First, they all had a necklace with a single shark vertebra, with shark teeth then strung on to signify rank - one tooth for every rank above private. For every year served in the Sharkbacks, one received another shark vertebra.

Additionally, Sharkback officers wore grey instead of the typical naval blue or aerial white.