212 RECORDS OF THE AUSTRALIAN MUSEUM. 



Wliile dredging we had drifted inshore and estimated that the 

 second haul was in a depth of two hundred and fifty fathoms, at 

 a distance of twenty-three miles due east of South Head. We 

 returned to port after an absence of twelve hours. 



The study of the Crustacea was undertaken by Mr. F. E. 

 Grant, and liis paper^ has already appeared. 



The Corals have been examined by Mr. J. Dennant, who will 

 shortly publish an account of them. 



An Elasipod Holothurian was determined by Mr. T. White- 

 legge as Pannychia moseleyi, Theel. There was also a fine Sea- 

 pen of the genus Kophohelemnon,. Representatives of other 

 groups have been handed to various specialists and it is hoped 

 that further I'eports on them may appear. The types of all new 

 species described in this article are presented to the Trustees of 

 the Australian Museum. 



The decided change of fauna between the one hundred fathom 

 level and the zone touched by our dredge, appears to us to 

 indicate that the animals obtained grew below the wai-m southerly 

 current. 



About twenty-five miles south-south-west of the position of our 

 dredging lies the "Challenger" Station 164 B., where, in four hun- 

 dred and ten fathoms, a large series of mollusca are reputed to 

 have been obtained. A large proportion of these were well- 

 known Atlantic species. This incongruous mixture has been con- 

 sidered by Crosse-^ and other writers as clear evidence of error. 

 One of us has discussed* the matter at length and recommended 

 the rejection of the whole tainted haul. 



Perhaps the most important result of our excursion is the re- 

 discovery of about half of the new " 164 B" shells, but none of 

 the European species occurred with them. It is evident that the 

 "Challenger" collectors had mixed gatherings from different oceans, 

 and while those here recognised are rehabilitated, the balance 

 had best be carried to a suspense account awaiting further 

 investigation. 



It is no longer possible to clieck the " Challenger " results by 

 dredging at 164 B, because the submarine telegraph cable to New 

 Zealand crosses the place. 



More than a hundred species of shells are contained in the 

 collection, some are fragmentary, or for other reasons cannot be 

 determined. The following is a list of those identified. 



1 Gi-ant— Proc. Linn. Soc. N. S.Wales, xxx., 1905, pp. 312-324. 



'^ Crosse — .lourn. de Conch., xliii., 1895, p. 257. 



3 Hedlev— Proc. Linn. Soc. N. S. Wales, xxvi., 1901, p. 22. 



