218 FISSUKELLID.*. 



49. Tasmania (f. 72), Smvb. — Elevato-conica, pallide fulva, 

 costis distantibus magnis, rugosis, et alternis minoribus radiata, 

 postice expansa, antice angustata, costis duabus prominentibus du- 

 plicatis, et cicatrice in costam validam producta; fissura brevis, 

 apice acuto, oblique recurvo. Obs. The two prominent anterior 

 ribs are not so much produced as in E. australis, while the rib 

 formed by the cicatrix is more so ; the apex is very acute and 

 turned backwards slightly on one side. 



50. Panhikxsis (f. 73,74, 75), Quay. — Griseo-rufescens, ele- 

 vato-conica, tenuis, vertice subcentrali, postice inclinato; costis 

 tuberculosis, radiantibus, albidis, et lineis transversis, elevatis, 

 subclathratis, costa antica prominente ; aperturre margine dentato, 

 antice valde sinuato, sinu intus in canalem producto. 



51. nodulosa (f. 77), A. Adams. — Ovata, oblique conica, al- 

 bido-rufescens, vertice subcentrali, postice declinato, costis lon- 

 gitudinalibus uodosis, radiantibus, duabus latere anterioribus per- 

 magnis, liris irregularibus transversis decussata; aperturse margine 

 irregulari postice acuminato, antice truncato, sinuato, sinu intus 

 in canalem producto. Obs. It is like E. Panhiensis, but the ru- 

 gosities are swelled into large bosses on the large ribs. 



52. sculptilis (f. 89), A. Adams. — Ovalis, oblique conica, 

 albida, viiidi radiatim maculata, vertice subcentrali, postice valde 

 declinato ; costis radiantibus, longitudinalibus corrugatis ; inter- 

 stitiis pulcherrime punctato-clathratis ; costa antica prominente 

 crenulata ; aperturse margine undulato et crenulato, postice rotun- 

 dato, antice truncato et sinuato, sinu intus in canalem producto. 

 Obs. Clathrated as in E. Panhiensis, but not so elevated and 

 more compressed at the sides, with a brown marginal spot be- 

 tween each of the larger ribs. 



53. alveolata (f. 82, 83), A. Adams. — Tenuis, alba, subpel- 

 lucida, depresso-conica, vertice subcentrali, postice inclinato, 

 costis radiantibus lirisque transversis irregulariter alveolata; costis 

 ad liras nodulosis ; alveolis pellucidis ; aperturse rnargiue dentato, 

 antice sinuato, sinu intus in canalem producto. 



54. ciiATiTJA (f. 91), A. Adams. — Ovata, conica, albida, vertice 

 obtuso, centrali, postice haud inclinato, costis radiantibus distanti- 

 bus, nodulosis; interstitiis costellis duabus longitudinalibus, et 

 lineis elevatis, transversis eleganter cancellatis; aperturse margine 

 crenulato antice sinuato, sinu quadrato, intus in canalem producto. 

 Obs. Oidy the formation of the fissure and cicatrix distinguish 

 this from E. viminea. 



