439 



Dominican Sections — Maury 



23 



Affinities of the Zone E Fauna. — Of this list 36 per cent oc- 

 cur in D, 43 in Bluff 1, .27 in Zone F. The reciprocal percent- 

 ages are 12 to F, 12 to Bluff 1, 10 to D. That is, E is closely 

 allied to the preceding and following faunas of D and F as one 

 would expect, but shows also a strong bond with Bluff 1, not 

 surprising when one considers how very strongly F and Bluff 1 

 are related. 



Fauna of Zone F. — We obtained the 'following from this 



zone 



L ist of Species 



Turris albida Perry. 



Clava plebeia Sby. 



Lyria pulchella Sby. 



Mitra Henekeni Sby. 



Phos Moorei Gp3 ? . 



Murex domingensis near j^aquensis 



Murex cornurectus Gpy. 



Lotorium prtefemorale, 11. sp. 



Cassis sulcifera Sby. 



Sconsia lsevigata Sby. 



Morum domingense Sby 



Malea camura Gpy. 



Strombus haitensis Sby. 



Antigona 



Strombus bifrons Sby. 

 Sepulorbis papulosa Gp)\ 

 Xenophotaconchyliophora Born. 

 Xenophora delecta Gpy. 

 Turgurium imperforata Gabb. 

 Natica Youngi, n. sp. 

 Scapharca golfoyaquensis, n. sp. 

 Glycimeris acuticostata Sb)'. 

 Pecten eugrammatus Dall. 

 Amusium papj'raceum Gabb. 

 Spondylus bostrychites Gpy. 

 Cardium (Laevieardium)' serratum 



Linne. 

 Blandiana Gpy. 



Affinities of the Zone F Faitna.—Oi the above, 70 per cent 

 occur in Bluff 1, 46 in Zone E, 18 in Bluff 3, 20 in F, 8 in D. The 

 reciprocal percentages are 19 to Bluff 1, 12 to Zone E, 2 to F, 

 1.6 to D, .7 to 3. 



Description and Fatina of Zone G. — This horizon was found 

 at the ford of the Cercado to Sabaneta road at the Gurabo river 

 about two miles above Los Quemados. The exposures are low, 

 rarely over ten feet. No line of contact could be found between 

 G and F nor any sign of unconformity but even in the field the 

 fauna of G appeared markedly different from the faunas of the 

 preceding zones. The fossiliferous lenses occur in the upper beds 



