Description
Original diagnosis after Grogan & Lund, 2009 [5161]: Laterally compressed body, orbits not bound dorsally by a supraorbital cartilage. Small delicate mesial palatal dentigerous plates, buccal plates otherwise absent; palato-buccal dentition of rows of small teeth with lateral cusplets; enlarged parasymphysial upper and median symphysial lower whorls; slim palatoquadrate with tall arcuate pterygoid process articulating with antotic process of anterior, ethmosphenoid moiety of neurocranium; neurocranium with ethmosphenoid and otico-occipital portions articulated by functional intracranial joint, plus a complete oticooccipital fissure; two small lateral and one median rostral processes; rounded slope of occipital surface down to foramen magnum; pectoral girdle linked to cranium by two paired series of cartilages; pectoral metapterygium moderately large, bearing thick first radial plus 11 others, and a multielement axis bearing four free rays; pelvic girdle with dorsal cartilage articulated with small block-like girdle element that supports the elongate triangular basipterygium laterally and the mixopterygium mesially; pelvic girdles articulate in midline; caudal endoskeleton homocercal; dorsal fin plate supports about 12 radials capable of antero-posterior mobility

Remarks
shark-references Species-ID=8206;
type species of Papilionichthys Grogan & Lund, 2009 [5161] by original designation (Art. 68.2 ICZN);

References