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Zoology Publications from Victoria University of Wellington—Nos. 63 and 64

Abstract

Abstract

In the Wellington area T. capito Jenyns, 1841 and T. robustum Clarke, 1879 spawn from July to October, depositing their eggs in clusters on the undersurface of rubble throughout the littoral zone. These clusters are attended by the male parent until hatching which under laboratory conditions occurs after 17 and 22 days respectively, in temperatures ranging from 11°-13.5°C. The egg development of both species is described.

The prolarvae of T. capito average 4.90mm standard length and possess yolk sacs of varying sizes each with 1-2 small oil droplets. Two large stellate melanophores lie above the gut. There are 16-26 stellate post-anal melanophores along the ventral mid-line, and 2-5 along the dorsal mid-line of the tail. The prolarvae of T. robustum average 5.95mm standard length and differ from T. capito in having only 5-15 mid-ventral melanophores.