Mysidae (Crustacea: Mysida) from sponges in sublittoral waters of Lizard Island (Indo-Pacific: Coral Sea), with description of Heteromysis kaufersteinae sp. nov., first record of H. domusmaris from nature, and range extension in Anchialina lobata

Abstract

The mysids Siriella sp., Anchialina lobata, Heteromysis domusmaris and H. kaufersteinae sp. nov. were extracted from sponges sampled in shallow water at the coast of Lizard Island. The range of A. lobata is extended ≥5400 km along waterways from the coast of SW-Australia to the Coral Sea off NE-Australia. Heteromysis domusmaris is first recorded from nature; this species was previously known only from coral reef aquaria. Heteromysis kaufersteinae sp. nov. differs from closely related species of the subgenus Olivemysis by the basal segment of the antennular trunk being furnished with a mid-dorsal lobe bearing a blade-like spine (modified seta), in combination with an unsegmented antennal scale, the disto-mesial edge of eyestalks bearing a tooth-like projection, by the numbers of segments of the carpopropodus of thoracic endopods 5–8, and by the numbers of spines on modified male pleopods 3–4.