Vol. XI] DICKERSON— FAUNA OF THE VIGO GROUP 15 



Partial List of Species from the Vigo Group. 



Pelecypoda 



2X 



Area cornea Reeve 



" ferruginea Reeve 



" granosa Linnaeus 



" cf . ccelata Reeve 



" tenebrica Reeve 



Barbatia fusca (Brugiere) 



Cardium 



" attenuatum Sowerby 



" unicolor Sowerby 



Cardita antiquata Linnaeus 



Chione chlorotica Philippi 



" ?? 



Corbula socialis K. Martin 



Clementia hyalina Philippi = C. papyracea 

 Dosinia cf . lenticularis 



" cretacea Philippi 



Glycimeris viteus (Lamarck) 



" angulatus (Lamarck) 



Ostrea 



Pecten (Pleuronectia) pleuronecta 



Linnaeus 



" cf . radula Linnaeus 



" cf . pseudolima Sowerby 



" pseudolima Sowerby 



" cf. cristularis Adams & Reeve. .. . 



Placuna placenta 



Psammobia cf . lessoni Blainville 



Psammobia, species 



Pinna, species 



Paphia textrix Deshayes 



Solen, species 



Spisula, species 



Solecurtus quoyi 



Spondylus, species 



Tellina 



Tellina, species 



Vermetus javanus ? K. Martin 



Anthozoa 



Trochocyathus burnsi J. Haime 



Coral 



+ 



+ 



3X 



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+ 



+ 



+ 



+ 



+ 



4X 



5X 



+ 



+ 



+ 



+ 



9X 



11X 



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+ 



+ 



+ 



+ 



+ 



liv- 

 ing 



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+ 



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+ 



+ 



Age of the Vigo Group 



In the foregoing list there are 87 forms which are specifically 

 determined, and, of these, 66 are living species (75 per cent.) 

 an astonishing number when the geologic history of the region 

 yielding these forms is considered. In addition, the extinct 



