New or Little-knoiim Victorian Fossils. 305 



Locality and Horizon. — Cave Hill, Lilydale. Silurian (Yerin- 

 gian). 



Primitia paucipunctata, Jones and IIoll. (PI. XTV., 

 Figs. 4a-c ; PI. XV., Figs. 2a-c). 



Primitia variolata, var. paucipunctata, Jones and Holl, 1865. 

 Ann. Mag. Nat. Hist., ser. 3, vol. xvi., p. 419, pi. xiii., figs. 6 

 0, d. 



P. paucipunctata, Jones and Holl, 1886. Ibid., ser. 5, vol. 

 xvii., p. 409, pi. xiv., figs. 3 a, b. 



Observations. — -The example here figured on Plate XV., Fig. 

 2, is somewhat more elongate than those of this species already 

 known, but there is probably a great amount of variation in the 

 carapace. In general outline the figured form referred to is, in 

 its lateral aspect, closely comparable with the foregoing variety 

 of P. elongata, but the edge view does not bear out the com- 

 parison. The scattered depressions on the hinder portion of the 

 valves serve to distinguish this from related forms. Fig. 4 of 

 Plate XIV. is probably an immature specimen, but is more 

 typical in its shape. 



P. paucipunctata is a well-known form in the English Silurian 

 strata. 



Locality and Horizon. — Cave Hill, Lilydale. Silurian (Yerin- 

 gian). 



Primitia striata, Krause. (PL XV., Figs. 3a-c). 



Primitia 1 striata, Krause, 1891. Zeitschi'. Deutsch. Geol. 

 Gesellsch., p. 496, pi. xxxi., figs. 4, 5 a-c. 



Observations. — Our specimen, which is unfortunately imper- 

 fect, dift'ers from the above species in having an acuminate 

 anterior extremity, instead of being squarely rounded oW, as in 

 the examples figured by Dr. Krause ; and the general shape of 

 the carapace is more elongate. The species is, however, a very 

 variable one, and the present example may therefore be regarded, 

 in the absence of other specimens, as merely a sub-variety ; like 

 the original examples, this one is longitudinally and interrup- 

 tedly striate. Krause's type specimens came from the Silurian 

 drifted block of Scandinavian limestone. North Germany. 



20 



