CALTPTRiEA. 251 



suture ; there are a few coarse spiral striae, wliilst tlie internal 

 plate has au almost straight edge. The spire varies considerably 

 in height. 



•Bimemions. — Height 11mm.; breadth 25 mm. 



Form, and Loc. — Eocene : Table Cape, Tasmania. 



83986. Example having an elevated spire and slightly inflated 

 body-whorl. Purchased. 



G. 9394. Three specimens. Purchased. 



Subgenus CALYPTROPSIS, Tate. 

 [Trans. Roy. Soc. South Aust. vol. xvii. pt. 2, 1893, p. 333.] 



" Shell like Calyptrcea, but umbilicated, and with a columella- 

 insinuosity at the umbilical border." — Tate. 



In the work above quoted the author cites the Joirrn. Roy. Soc. 

 N.S. "Wales, vol. xxvii. 1893, p. 181, as the publication in which 

 he first established Calyptropsis ; but the latter work was not, in 

 reality, published until early in the year 1894, whereas the Trans. 

 Roy. Soc. South Aust. vol. xvii. pt. 2, above quoted, was published 

 in Dec. 1893, thus taking priority. The following species is here 

 selected as the type of the subgenus : — 



Type. — CalyptrcBa arachnoideus, Tate. 



Calyptraea (Calyptropsis) turbinata, Tenison-Woods 

 (sp.). 



1879. Trochita turbinata, Tenison -Woods, Proc. Linn. Soc. N.S.W. vol. iii. 

 p. 238, pi. xxi. fig. 1. 



1893. Calyptrcea {Calyptropsis) turbinata, Tate, Trans. Roy. Soc. South 



Aust. vol. xvii. pt. 2, p. 333. 



1894. Calyptropsis turbinata, Tate, Journ. Roy. Soc. N.S.W. vol. xxvii. 



p. 181. 



Shell thin, suborbicular, turbinate, depressed ; protoconch small, 

 coiled, leaning to one side ; whorls two and a half, rapidly 

 increasing, ornamented by slender radial and concentric threads; 

 internal plate relatively small, striated, edge curved over towards 

 the umbilicus, which is narrow. 



