G. M. Thomson. — Xafuiril Ilisfor// of Otago Harbour. 237 



Leptomithrax australis Jacquinot and Lucas. 



Not uncommon on the coast. Occasionally taken on the sandbanks 

 by the seine net. 



6. Acanthophrys filholi A. Milne-Edwards. 



Occasionally met with at moderate depths along the coast. All have 

 the carapace more or less covered with sponges, &c. 



7. Prionorhynchus edwardsii Jacquinot and Lucas. 



This is the largest of the New Zealand crabs. It was originally found 

 in the Auckland Islands, and was supposed to be peculiar to the group. 

 Later it was taken on the Campbell Islands, and in August, 1900, the 

 trawlers picked up great numbers of them outside of Otago Heads. On 

 rare occasions since they have come across them again. 



8. Eurynolambrus australis Milne-Edwards. 

 Very occasionally met with on the east coast. 



9. Cancer novae-zealandiae Jacquinot and Lucas. 



This is an extremely abundant crab in Otago Harbour and along the 

 coast-line, from the tide-exposed sandbanks to 30 fathoms. 



10. Nectocarcinus antarcticus Jacquinot and Lucas. 



k common swimming-crab, both in Otago Harbour and in the adjacent 

 sea. It is an extremely active and pugnacious species. 



11. Ovalipes bipustulatus Milne-Edwards. {Platyonichvs bipustulatus.) 



This is another very common swimming-crab, often of considerable size, 

 the carapace being 4 in. across and 3 in. deep. While moving about in the 

 water, partly crawling and partly swimming, it carries its sharp and very 

 powerful chelae in an elevated position ready for action. It buries itself 

 in sand with great rapidity, front downwards at first, disappearing out of 

 sight in five or six seconds, and then thrusts out its eye-peduncles, so as to 

 be able to look around it. 



12. Ommatocarcinus macgillivrayi White. 



Occasionally taken in the trawlers, and found in the stomachs of fishes, 

 from outside Otago Heads. 



13. Macrophthalmus hirtipes Jacquinot and Lucas. 



Very common on sandbanks in Otago Harbour and shallow bays along 

 the coast. It is an active and most aggressive species. 



14. Heterograpsus sexdentatus Milne-Edwards. 



An extremely common shore-crab, occurring between tide-marks, usually 

 under stones. The males have very powerful chelae, but they appear to 

 use them only in self-defence, as they are not pugnacious. The ova hatch 

 out in August and September. 



