Neiv and Rare Fossils. 51 



-may be readily distinguished from C. polita, not only in the 

 narrower extremities, but also in the angularly tumid outline of the 

 carapace in edge view. It is extremely abundant in the washings 

 from the Mallee bores, and occurs from the Miocene upwards. 



Occurrence.— Boi-e 2, 198-200 feet (Kalimnan). Bore 3, 260 feet, 

 -circ. (Janjukian). Bore 4, 163-170 feet (Kalimnan). Bore 9, 256- 

 263 feet; 315-325 feet (Kalimnan or Janjukian). Bore 10, 230-254 

 feet (Kalimnan). Bore 11, 175-197 feet; 197-199 feet; 219-260 

 feet (Kalimnan). 349-353 feet; 540-542 feet; 554-556 feet; 558-560 

 feet (Janjukian). 



Cytherella punctata, G. 8. Biady. (Plate IX., Fig. 47). 



Cytherella piincfafa, G. S. Brady, 1866, Trans. Zool. Soc, 

 Lond., vol., v., p. 362, pi. Ivii., figs., 2r^ h. Idem, 1880, 

 Rep. Chall. Zool., vol., i., pt. iii., p. 174, pi. xxxvi., 

 figs. 6a, h.; pi. xliv., figs., ^a-g. Egger, 1901, Abhandl. 

 d. k. bayer. Akad. Wiss., vol. xxi., abth. ii., p. 469, 

 pi. iv., figs. 34, 35. 

 Observations. — As a recent species this is one of the deeper 

 water forms of the genus Cytherella. It has been noted from Tris- 

 tan d'Acunha; Port Jackson; from Challenger Sta. 167 in the 

 Southern Ocean between Sydney and Nevr Zealand ; off the Ki 

 Islands; and in the Straits of Magellan. 



Egger records the above species from the west coast of Aiistralia at 

 "357 metres. 



Occurrence.— Bove 6. 114-150 feet (Kalimnan). Bore 9, 256^263 

 feet (Kalimnan or Janjukian). Bore 11, 267-270 feet (Janjukian). 



Cttherella subtruncata, sp. uov. (Plate TX., Figs. 48a, b). 



Descrij)tion. — Carapace, from the side, compressed oblong or sub- 

 rectangular, with broadly rounded extremities; dorsal margin 

 nearly straight, slightly concave in the middle, ventral broadly 

 concave, antero- and postero-ventral angles rather more produced 

 than the dorsal; encircling border or flange fairly conspicuous on 

 the ventral edge. Median surface depressed. Seen from below, 

 compressed, elongate, pyriform, the contour depressed in the 

 middle, anterior extremity compressed and rounded, the posterior 

 inflated and much thicker. Surface smooth. 



