MORTENSENENUS MINUS, A NEW GENUS AND SPECIES OF CORONIDID STOMATOPOD FROM MAURITIUS

Abstract

Mortensenenus minus, new genus, new species, is described from a specimen collected by Th. Mortensen at Mauritius. This distinctive new genus, the fifth to be recognized in the Coronididae, resembles Coronida Brooks, 1886, and Neocoronida Manning, 1976, in having 4 teeth on the dactylus of the claw, but differs from these genera in lacking dorsal spines or stellate tubercles on the sixth abdominal somite and telson. It differs from Parvisquilla Manning, 1973, in being much larger and in having a mandibular palp, 5 epipods, and a rostral plate that extends beyond the antennular somite, and from Acoridon Adkison, Heard, and Hopkins, 1983, in lacking a subapical ventral projection on the rostral plate and in having 4 rather than 5 teeth on the dactylus of the raptorial claw. Among the extensive collections of stomatopods made by Th. Mortensen and housed in the Zoological Museum, Copenhagen, is an undescribed species that represents a new genus ofcoronidid. It is named here for Mortensen. The type has been deposited in the Zoological Museum, Copenhagen. Mortensenenus, new genus