37 



a series of articles " On the Salenidae," published in the Ann. and Mag, 

 of Nat. History ; in part in., " on a third form of recent Salenise, and on 

 the Saleniae from the tertiary deposits," July, 1878, the learned author 

 writes respecting our species — " It is a tine form of Salenia, with all the 

 characters of the cretaceous species, except the distribution of the pores 

 in the ambulacra. In the older Salenice there is a pair of pores to each 

 ambulacral tubercle, and one intermediate, or in other words, two pairs 

 are in relation to each tubercle. The Salenia described by Prof. Tate 

 has but one pair. This is the case with the recent species, so far as is 

 known." 



The total number of recorded Echinoderms from our Tertiaries is 

 fifteen, but that is not a moiety of those collected by me from the 

 Murray and Aldinga Cliffs. The chief additional genera are Pentaciinus, 

 Temnechinus, Fibularia, Laganum, Hemiaster, Echinobrissus, Linthia, 

 and Comaster. The systematic description of the new species is being 

 proceeded with, and I hope soon to have the pleasure of communicating 

 to you a summary of the results arrived at. 



The Polyzoa, which constitute so prominent a feature in the Ter- 

 tiary fauna of South Australia, many of the strata being made up of 

 their debris, have been much neglected, and the field is almost untrodden. 

 From their variety of form and the beauty of their ornament they are 

 highly attractive to the microscopist. Professor Busk in 1860 examined 

 a collection from Mount Gambier, forwarded by the Rev. J. E. Tenison 

 Woods, and classified them into forty species of sixteen genera ; thirty- 

 six of the former were considered undescribed, and three of the latter 

 being new ; but being unaccompanied by descriptions or figures, the list 

 published in the Quart. Journ. Geol. Soc. is of no aid to the student 

 Mr. Woods, in his " Geol. Observ. in S. A.," attached specific names to 

 some polyzoa figured on a lithographic plate in that work ; and further 

 added a little to our knowledge in a paper, " Proc. Roy. Soc. of Victoria 

 for 1862." But a more important step was made by him in communi- 

 cating to the Roy. Soc. of ISf. S. Wales, 1876, descriptions of " Some 

 Tertiary Polyzoa from Mount Gambier." Thirteen new species are techni- 

 cally described and illustrated by two well-executed lithographic plates ; 

 they are Eschara, 10 sp., Pustulipora, 2 sp., and Tubilipora, 1 sp. 



The present state of our knowledge of the coral fauna of the Ter- 

 tiary strata of Australia is given by Mr. Woods in the introduction to his 

 paper published herewith, and that of the S. Australian tertiaries in a 

 supplementary note added by me. 



