1964  Arkanites McCaleb, Quinn & Furnish: 26.
     1978  Arkanites.-Ruzhentsev & Bogoslovskaia: 274.

Type species: Eumorphoceras relictum Quinn, McCaleb & Webb, 1962, p.112 [OD9.

A:   Conch form subglobose, rather evolute, with moderately wide umbilicus and broadly rounded ventral side.
B-C: Sculpture consisting of well developed umbilical ribbing, sometimes with nodelike bases.
E:   Ventrolateral grooves broad and deep.
G:   Suture-line almost of gastrioceran type: ventral lobe large, median saddle exceeding half the height of entire ventral lobe;
       first lateral saddle broadly rounded. Adventitious lobe large, with sigmoidal sides, and pointed.