624 MESSES. GAEDNER, KEEPI^^G, AND MONCKTON ON THE 



Invertehrata. 



The * in the columns denotes where 

 the species is most at home. The t 

 prefixed to a name indicates that 

 the shell is unique. The species 

 which have all the columns left 

 hlank are from the Barton Series ; 

 but their precise horizon is not 

 known. 



a 



m 



Nautilus, sp 



fPedipes glaher, Sdw 



Cyprsea bartonensis, Edw 



Trivia platystoma, Edw 



Marginella bifido-plicata, Charlesw. 



tgraciHs, Edw.\ 



pusilla, Edw 



simplex, Edw 



Voluta luctatrix, Sol 



ambigua, Sol 



, var. subambigua 



nodosa. Sow 



scalaris, Sow 



spinosa, Linn 



, var. depauperata, Sow.... 



scabricula, Sol 



Solandri, Edw 



athleta, Sol 



maga, Edw 



suspensa, Sol 



decora, Beyr., var. maga, Edw. 



humerosa, Edw 



costata, Sol 



fMitra volutiformis, Edw 



scabra, Sow 



parva, Sow 



fusellina, Lam 



tobesa, Edw 



Conns scabrieulus, Sol 



lineatus, Sol. 



dormitor, Sol. 



Pleurotoma rostrata, Sol 



exorta, Sol 



macilenta, Sol 



lanceolata, Edw 



laevigata, Sow 



microdonta, Edw 



desmia, Edw 



innexa, Sol. 



coarctata, Edw 



microcheila, Edw 



dissimilis, Edw 



gomphoidea, £(:?«; 



acuticosta, Nyst 



biarritziana 



§hemileia, Edw 



§vicina, Edw 



Sdilinum, jS/cZw 



\ Apparently a variety of above. 



§ These species occur in the Barton Beds at Alum Bay only. 



