The dwarf form has the most complex coloration of any baleen whale. Dark gray fields and capes alternate with light gray and white blazes, patches, and streaks. The dark gray spinal field lies above an ivory white ventral field. This spinal field extends down into a nape field, which separates a light gray rostral saddle and a light gray, triangular, usually forwardly peaked thorax patch. The nape field, in turn, extends even further down into a dark throat patch, which reaches down to the ventral pleats and extends back to the front of the pectoral fins. Further back the spinal field extends into a dark thorax field, which usually forms an inverted triangle between the thorax patch and the light gray flank patch. This flank patch can be separated into an anterior and posterior flank patch by a dark triangular or even wave-like flank infill. Finally, the dark peduncle field covers the posterior portion of the caudal peduncle to the tips of the dorsal side of the flukes, which are white ventrally and thinly bordered by dark gray.