OF NEW SOUTH WALES. 285 



This is a very common fossil at Muddy Creek, and is always 

 found of small size. Ifc differs from the two small Turritella of 

 Table Cape, Tasmania, in the almost smooth whorls, garnished 

 with three very inconspicuous keels and a broad, shallow groove 

 at the lower part of each whorl. T. Warhurtonii, mihi, has five 

 keels, T. Sturtii, mihi, has the keels granular. The latter are 

 both abundant at Table Cape, and about the same size. In the 

 larger specimens of this fossil (which is also distinguished by 

 not being decollated) one notices other small faint lira© in the 

 last whorl, especially below the groove. I believe, also, that the 

 outer lip had a deep sinus. 



Thalotia extgua. pi. 20, fisr. 11. 



T. t. parva, tumide conica, spira elata, solida; anfr. nucleo incluso 

 7, planatis, lineis 5 granulorum cinctis ; sutura vix impressa ; 

 apertura quadrata, columella recta, fauce antice lirata, incrassata ; 

 basi spiraliter granulosa ; nucleo 1 anf. lavi, nitente. Long. 6|, 

 lat. 3i. 



This fossil is very like the common Thalotia conica, Gray, of 

 the south coast, except that it is very much smaller and has the 

 aperture thicker in proportion. There are rows of granules in 

 each whorl, and these are small, leaving spaces in which there is 

 sometimes a fine raised line. There is another fossil Thalotia in 

 the Tasmanian tertiary beds. 



Minolta strigata. Plate 21, fig. 7. 



M. turhinato-conoidea, parva, tenui, nitente, strigis rufis aliquando 

 insignita, late, perspective umhilicata ; anfr. 5, medio conspicue 

 carinatis, superne angulatis, coronatis, undigue distanter striatis ; 

 inter coronam et suturojm late planatis ; lineis incrementi declivihus, 

 suhtillissimis ; granulis coronce latis, acutis. Ultimo anfr. ad peri' 

 plieriaw. angulato et carinato; hasi Icevi, planata; umhilico granulis 

 conspicuis marginato, intus corrugato. Apertura vix integra, 

 orhiculata. Alt. 5|, diam 6|. 



This very pretty little species which often preserves its former 

 coloring in faint reddish streaks is rather common in the Muddy 

 Creek beds. It in some respects resembles our M. veciiliginosa, 

 Menke and M. angulata, Ada.ms. The main difference is the coronate 



