502 MOLLUSCA OP MAST HEAD REEF, QUEENSLAND, II., 



funicle. Aperture subcircular, outer lip simple, inner reflected 

 over the umbilicus. Umbilicus superiorly a narrow spiral per- 

 foration, inferiorly a trough hollowed between the columella and 

 funicle. Height 2*45 mm.; major diameter 2-G5mm.; minor 

 diameter 1*8 mm. 

 ■ A few specimens from 17-20 fathoms. 



The novelt}'' is nearest C. biconica,^ than which C. inverta is 

 larger, proportionately broader, with a lower spire and a heavier 

 funicle. 



FOSSARUS BRUMALIS, U.Sp. 



(Plate xviii., fig.38.) 



Shell small, thin, globose-turbinate, widely umbilicate. 

 Whorls four, rapidly increasing, parted by impressed sutures. 

 Colour coffee-brown. Sculpture : spiral^ elevated, narrow keels, 

 two on the penultimate, five on the last whorl, spaced by flat 

 interstices three times their breadth, the highest on the shoulder, 

 the lowest margining the umbilicus; over all a secondary sculpture 

 of fine, close, spiral microscopic striae. First whoil smooth, 

 dome-shaped. Umbilicus a wide funnel spirally ascending to a 

 narrow perforation. Aperture large, subquadrate, outer lip 

 sharp-pointed at the termination of each keel. Columella 

 straight, slightly reflected over the umbilicus. Height 1-32 mm.; 

 breadth 1-0 mm. 



A few specimens from 17-20 fathoms. Further examples were 

 procured in 1906 off the Hope Islands. 



The sign of Capricorn was "brumalis " to the Romans though 

 not to ourselves. 



LiPPiSTES zoDiACUS, n.sp. 



(Plate xviii., fig.30.) 



Shell small, solid, narrowlj' perforate, ovate. Colour pale buff. 

 Whorls four and a half, including a protoconch of a whorl and a 

 half. Sculpture : prominent, widely spaced spiral keels, two on 

 each of the upper whorls and fo^ur on the last, both the. keels and 



*Hedley, These Proceedings, xxvii. (1902), p.l2, pi. ii. tig.24. 



