238 Transactions. 



15. Heterograpsus crenulatus Milne-Edwards. 



Also found xmder stones between tide-marks, but not very common. 



16. Cyclograpsus lavauxi Milne-Edwards. 

 Common under stones between tide-marks. 



17. Chasmagnathus subquadratus Dana. 



This is a very common crab, living on mud-flats in all the shallow bays 

 and estuaries along the coast. It makes burrows not only between tide- 

 marks, but also in situations completely out of reach of the water. Each 

 individual occupies its own hole, those of the females being somewhat 

 deeper than those of the males. 



18. Helice crassa Dana. 



Another species living in bufrows on mud-flats in similar localities to 

 the last. 



19. Sesarrha pentagona Hutton. 



A specimen of this crab in the Otago Museum is labelled (in the late 

 Captain Hutton' s handwriting) as found in Dunedin. I have not come 

 across the species elsewhere. 



20. Pinnotheres pisum Linnaeus. 



This little crab is found living commensally with mussels {Mytilus sp.) ; 

 but it is only the females which live this confined life, the males being free- 

 swimmers and rarely met with. This species spawns in December and 

 January. The eggs are about 0-73 mm. in diameter. A specimen with a 

 carapace 9-3 mm. in width carried about 1,400 eggs. 



21. Halicarcinus planatus White. 



An abundant crab in the harbour and near the coast. Moki taken in 

 the channel just opposite the Portobello Hatchery have been found to have 

 their stomachs crammed with this species. 



22. Hymenicus varius Dana. 



23. Hymenicus pubescens Dana. 



I have referred small crabs taken by the dredge and the trawl-net and 

 under stones in the neighbourhood of Otago Harbour to these species, but 

 the whole group wants revision. 



24. Hymenosoma depressum Jacquinot and Lucas. 

 Neighbourhood of Dunedin. 



25. Elamena producta Kirk. 



In rock-pools along the coast. 



Anomura. 



26. Eupagurus novae-zealandiae Dana. (G. M. Thomson, Trans. N.Z. 



Inst., vol. 31, p. 173, pi. 20, figs. 3-5.) 



Common in Otago Harbour and along the coast. 



