FINE STRUCTURE OF CINCINNULI ON THE APPENDICES INTERNAE OF PUERULUS LARVAE IN THE ROCK LOBSTER JASUS EDWARDSII (HUTTON, 1875) (DECAPODA, PALINURIDAE)

摘要

Several groups of decapods, stomatopods, leptostracans and euphausiids possess a structure called cincinnuli near the tip of the appendix interna, an appendage associated with the endopod of the pleopods, or directly on the endopod (e.g., Bate, 1888;Tombes & Foster, 1979; Nicol & Nicol, 1983; Bouchon & Chaigneau, 1991; Ingle, 1992; Martinez & Dupre, 2010). From scanning electron microscopy images it can be seen that the cincinnuli comprise an assemblage of several to hundreds of mushroom- or hook-like processes, with varying number and shape according to the taxa, and those from the right and left appendix interna can adhere to each other, possibly enhancing synchronized beats of the paired pleopods (e.g., Tombes & Foster, 1979; Pohle & Telford, 1981; Nicol & Nicol, 1983; Bouchon & Chaigneau, 1991).