OF NEW SOUTH WALES. 220 



There is no other ornamentation on the body-whorl, except 

 about ten spiral strias near the base, but the lines of growth are 

 very apparent. The species is like the Vienna miocene G. exten- 

 sus Partsch in its young stage, but in that shell the spire is more 

 acute and longer. In our fossil, the upper part of the whorl 

 near the suture is faintly channelled. The granules are also 

 different, and the anterior striae are more numerous and finer. 

 Conus dujardinii is like it in form, and C. antedilvvianus has the 

 corona more marked with a deep sinus near the suture. Both 

 the latter belong to the Vienna miocene. There is nothing at 

 all like it in the Paris basin ; and we have nothing very similar 

 existing in Australia but Conus carmeli, mihi, which has the two 

 last whorls only coronate, but is distinctly grooved all over, and 

 is broader in proportion to length. I have dedicated this inte- 

 resting specimen to Prof. Ralph Tate. 



Natica Wintlei, mihi, var. Hamiltonensis. Plate 21, fig. 8. 



Testa parva, late ovata, soUda, polita, anguste um.bilicata ; anfr, 

 3; rotundatis, rapide accrescentibus, striis incrementi subregulariter 

 ienuiter corrugatis ; apertura semilunari, labro acuto, columella 

 postice plus minusve callosa ; umbilico uno sulco lato, corrugato, 

 insignito, apice vix prominulo. Diam. et alt. 8. 



A common fossil at Muddy Creek, mainly distinguished by its 

 small size. It is polished with very faint signs of the lines of 

 growth. The callosity is not conspicuous and confined to the 

 upper part of the columella. The umbilicus is narrow, with a 

 broad corrugated groove. The aperture is semilunar. The out- 

 line of the shell is diagonal. It cannot be said to have any 

 peculiar or marked features, but it does not resemble any in the 

 Vienna or Paris basins and must mainly be distinguished by its 

 size, the moderate callus and the very slightly exerted spire. 

 In deference to the opinion of Prof. Tate, I have referred this 

 species to my Natica Wintlei described by me in the Proceedings 

 of the Royal Society of Tasmania, for 1875, p. 23. It is 

 generally smaller and more globose than the type referred to. 

 Ancillaria semil^vis. pi. 20, fig. 7. 



A. parca, eloiigata, fusifoi'ini, soUda, nitente, spira apert. cequanti ; 

 anfr. 5| angustis, encaustis, ita ut suiura et struciura. sint nccultin ; 



