222 Fredericlc Chapman : 



Palaeontological Notes. 



PleurodicUjum megastomuni, Dun. 



P. megastomum, MoCoy, 1867 (nonien nudum), Ann. Mag. 

 Nat. Hist., ser, 3, vol. XX., p. 201, footnote. 



Dun, 1898, Proc. Roy. Soc. Vict., vol. X.N.S., pt. II., p. 83, pL 

 III., fig. 1. 



The specimens in the present collection, from Glenburnie 

 Road and Merriang Road, afford additional evidence of the pecu- 

 liar habit of this species to attach itself to the stems of 

 crinoids, which character may also hold good for the genus. In 

 a former paper! j have drawn attention to this peculiarity and 

 in the case of the Victorian specimens, \vhose corallum often 

 attains a diameter of over 5 cm., they seem invariably to select 

 a comparatively slender-stalked erinoid for attachment, which 

 must have imposed a heavy burden upon their host. The oppor- 

 tunity is now taken to correct a locality given in my paper 

 above-mentioned (p. 107). caused by a duplication of reference 

 letters and numbers on the Survey specimens, in which the 

 locality B16 as there recorded should read " Simmon?' Bridge 

 Hut on the Yarra," and not " West of Mt. Disappointment " ; 

 the reference to the latter having been afterwards altered by the 

 Survey to Bbl6. 



In reference to its distribution it is interesting to note that 

 P. luegastoiinim was collected by Mr. G. Sweet from near Kil- 

 more, and probably from about the same horizon as the Glen- 

 burnio Road Beds. 



Platystrophia hiforata, Schlotheim, sp. 



The occurrence of the above fossil in strata having a strong 

 Yeringian faoies, viz., the Cemetery Hill Road section, affords 

 further evidence of its greater abundance in Victoria in the 

 equivalent of the AVenlock. It has also been found in the 

 Walhalla and Mt. Wellington Districts in Gippsland hi strata 

 which may be of similar age^. 



1 Proc. Roy. Soc. Vict., vol. xv., n.s., pt. ii., \WA, i>. lOG, pi. xvi., fii;s. i-h. 



2 Vict. Naturalist, vol. xxiv., 1907, p. 34. 



