INDEX. 



Plate. ' Fig. 



rugosuS) MytUus - - - . - 141 



rustlcum, Cardium - _ « - 124 a 



striata, Pholas - - - - - 'i? 



subtruncata, Mactra - - - - ia6 



terrestris, Trochus - - - - in 



triplicata, Voluta - - - - 138 



tubiformis, Sabella - - " - ^33 



undata, Venus . _ - - - ia« 



ungulatus, Mytilus - - " * '** ' 



END OF VOL. IV. 



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