Pahvozoic Fossils. 365 



Rcnsseldi'ria Itottentot, nov. sp, 



PI. VII., Fig. S. 



This little shell I hail taken for a Retzia when sorting out the 

 specimens in the Geological Commission, but on closely examin- 

 ing it I have come to the conclusion that it is probably a Rensse- 

 lacria; there is no internal structure to guide one in the m?tter. 

 It is certainly an undescribed species. The specimen is an exter- 

 nal cast of the l)rachial valve. 



The central fold is strongly marked with a slight but distinct 

 furrow in the centre ; there are seven ribs on either side, making 

 lo in all. Near the middle the ribs are very prominent, with deep 

 furi'ows between, marked with strit^ of growth : towards the alae 

 they become smaller but still sharply defined. Besides the stricB 

 there ai-e rings of growth. The pedicle impression of the ventral 

 valve, with a slight marginal hinge area, just appears over the 

 dorsal valve. 



Dimensions : — Width 0.7 cm. Depth 0.8 cm. 



Cat. No. 2578. Donor : Geological Commission. Locality, 

 Hottentot's Kloof, Ceres. 



Rcnssflai'ria^ sp. b., Reed. 



Reed, A.R.C., Ann. S.A. Museum, Vol. IV., p. 177, PI. XXI. 

 fig. 9. 



This well markeil species is represented in the Albany 

 Museum by a complete internal cast of the brachial valve. It is 

 unfortunate that it has not a name ; it is said to be similar to 

 R. cwnherJandite, Hall, from the Oriskany Sandstone. 



Cat. No. 2602, Donor : Geological Commission. Locality, 

 Boschluis Kloof, Ladismith, C.C. 



The following specimens are pedicle valves, or impressions 

 of the pedicle valve, with no distinctive characters, and may 

 be any of the radially striate brachiopods. 



Cat. No. 1498. Donor : Mr. A. G. Rain ; no locality. 



Cat. No. 2590. — Tri(/cri<( {':!). Donor: Geological Commission, 

 Gydow Pass. 



Cat. 2603. Donor : Geological Commission. Locality, Koude- 

 veld Berg. 



