738 WILLIAM F. JONES 
some places coral limestones (Figs. 3 and 4). Also characteristic 
of this division are several beds composed mostly of a very thick — 
large species of Ostrea. In other beds are myriads of Scapharcas. 
This division is quite fossiliferous, the conglomerate members and 
many of the sandstone beds, however, being generally devoid of 
fossils. No complete collections were made but the following 
species have been recognized: 
LAS CAHOBES FOSSILS 
Locatity: HILL soutH oF THOMONDE 
Conus sp. 
Cornus stenostomus Sowerby 
Drilla riogurabonis Maury 
Fasciolaria kempt Maury 
Phos gabbi Dall 
Meta perplexabilis (?) Maury 
Murex domingensis Sowerby 
Aspella scateroides Blainville 
Strombus maoensis Maury 
Turritella planigyrata Guppy 
Turritella tornata Guppy 
Solarium quadriseriatum Sowerby 
Polinices stanislas-meeniert Maury 
Sinum nolani Maury 
Scapharca chiriquiensis Gabb? 
Scapharca quayubinica Maury 
 Scapharca cercadica Maury 
Ostrea gilbertharrist var 
Venericardia scabriocstata Guppy 
Echinochama antiquata Dall 
Ostrea megodon Hanley 
Pecten engrammatus (?) Dall 
Pecten hatovieyonis Maury 
Pecten soror Gabb 6 
Phacoides (Mitha) smithwoodwardi (?) Maury 
Cardium (Trachycardium) dominicanum Dall 
Tellina (Scissula) cercadica (?) Maury 
Tellina cibaoica Maury 
Mytilopsis domingensis Reeluz 
Siliqua subaequalis Gann 
t Occurs in massive beds. 
2 Occurs in massive beds, very much more elongated than Maury’s species. 
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