4° 



MOLLUSCA IN THE MaYA LoWLANDS 





A 



RCHAEOLOGICAL 





Modern Distribution 





Species 





Occurrence* 



Zone I 



Zone II Zone III 



Zone IV 



Tellina lineata 



D,M 





X 



X X 



X 



Tellina listeri 



I 





X 



X 





Tellina radiata 



I 





X 



X 





Arcopagia fausta 



D,I 





X 



X 



X 



Apolymetis intastriata 



T 





X 



X X 





Mulinia lateralis 



T 









X 



Gastrochaena hians 



M 







X 





FRESHWATER GASTROPODS 













Pomacea flagellata arata 



D, B, 



T,P 





{not sufficiently collected) 





Pomacea f. ghiesbrechti 



P 







" " " 





Pachychilus glaphyrus 



B,T 







.. 





Pachychilus indiorum 



P 







.. 





Pachychilus largillierti 



B 







" " •• 





FRESHWATER PELECYPODS 













Nephronaias aff. calamitarum 



D 







f* ti 1* 





Nephronaias goascoranensis 



S 







" 





Nephronaias ortmanni 



B 







.1 .. .. 





Nephronaias cf. yzabalensis 



S 







.. 





Psoronaias quadratus 



P 







.. 





Psoronaias semigranosus 



M 







.. 





LAND GASTROPODS 













Oleacina sp. 



M 







.. 





Euglandina carminensis 



B 







■> 





Euglandina decussata 



P 







.. 





Euglandina sp. 



T 







" 





Orthalicus princeps princeps 



D(f) 



M,T 





.. 





Bulimulus sp. 



B 







.. 





Aplexa elata 



T 







.. 





Neocyclotus dysoni 



B,T 







.. 





Choanapoma radiosum 



P 







.. 





Helicina sp. 



T 







.. 





Total: 192 species 













