New or Little-knoiun Victorian Fossils. 303 



pared Av-ith our specimen figured in the same aspect. The ven- 

 tral border in the latter example is more strongly curved than 

 that in P. matutina from Shropshire, and there is also a faint 

 mid-dorsal pit which was not seen in the English specimen, 

 although this feature is characteristic of Primitia. The dimen- 

 sions given of the English specimen slightly exceed those of our 

 form. In view of the slight differences referred to above, the 

 specific determination is given with some reserve. 



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

 gian). 



Primitia reticristata, Jones. (Pi. XIII., Figs. 7a-c). 



Primitia reticristata, Jones, 1887. Sil. Ostrac. Gothland, 

 p. 5. 



P. reticristata, Jones, 1888. Ann. Mag. Nat. Hist., ser. 6, 

 vol. i., p. 406, pi. xxii., figs. 15 a-c. 



P. reticristata, Jones, Krause, 1891. Zeitschr, Deutsch. 

 Geol. Gesellsch, p. 495, pi. xxx., figs. 8 a-d, 9 a-d. 



Observations.- — ^The previous occurrences for this neat and 

 characteristic Primitia are Frojel and INIulde, Gotland (Silurian), 

 and also from the drifted Silurian blocks of N. Germany. Our 

 specimens are typical, and they are not rare. 



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

 gian). 



Primitia (cf.) obsoleta, Jones and Holl. (PI. XIII., 

 Figs. 8a-c). 



Primitia obsoleta, Jones and Holl, 1865. Ann. Mag. Nat. 

 Hist., ser. 3, vol. xvi., p. 423, pi. xiii., figs. 12 a-c. 



Observations. — The present example agrees most nearly Avith 

 the above species in the form of the carapace and the simple 

 flanged border, which, however, in our specimen does not die 

 away towards the anterior extremity as in Jones and Holl's 

 specimen. Tlie original specimen came from the Silurian di'ifted 

 blocks of Scandinavian limeetone, North Germany. 



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

 gian). 



