AKT. 1. TERTIARY MOLLUSKS FROM THE WEST INDIES — WOODRING. 11 



An apparently new species of the foraminiferal genus Sorites that 

 has a larger earl}^ spiral stage than the upper Oligocene and lower 

 Miocene species S. americana (Cushman) was collected at the same 

 locality (station 1/139). 



The following fossils were collected from lower beds in the same 

 series at station 1/138, pit No. 4, on the right side of Rio Guajataca 

 at the dam site, at an altitude of about 174 meters above sea level. 



CORAL. 



Ci/atliomorpha antiguensis (Duncan) Vaughau variety. 



MOLLUSCA. 



Chlamys (Aequipecten) , two species. 



Chlamys (Plagioctetiium) , species. 



Spondylus, species. 



Ostrea, species. 



Cardinm (TracJiycardium), species. 



Teredo tubes were collected at station 1/137 from the upper part 

 of this series of beds on the right side of Rio Guajataca at the dam 

 site, the altitude being about 208 meters above sea level. 



EXPLANATION OF PLATES. 



Plate 1. 



All figures one-half natural size. 



Orthaulax aguadillensis Maury. 



Fig. 1.— Cast. Near Thomonde, Republic of Haiti, U.S.G.S. station 9778. Cat. 



No. 328388, U.S.N.M. 

 2. — Apical view of large specimen showing spiral threads on shoulder and 



curved growth lines. Near Thomassique, Republic of Haiti, U.S.G.S. 



station 9945. Cat. No. 328382, U.S.N.M. 

 3. — Axial section of specimen that has an almost perfect spire showing the 



completely enveloping whorls (dark) and the callus between them 



(light). Near Thomonde, Republic of Haiti, U.S.G.S. station 9782. 



Cat. No. 328385, U.S.N.M. 

 4. — Axial section of worn specimen. Near Th-omonde, Republic of Haiti, 



U.S.G.S. station 9779. Cat. No. 328389, U.S.N.M. 

 5. — Side view of worn specimen showing thickened outer lip. Thomassique, 



Republic of Haiti, U.S.G.S. station 9947. Cat. No. 328383, U.S.N.M. 

 6.— Cast. Thomassique, Republic of Haiti, U.S.G.S. station 9947. Cat. No. 



328387, U.S.N.M. 

 7.— Cast. Near Quebradillas, Porto Rico, U.S.G.S. station 1/146. Cat. No. 



328393, U.S.N.M. Casts from the Quebradillas limestone of Porto 



Rico were called 0. portoricoensis by Hubbard. 

 8. — Apertural view of specimen shown in fig. 2, showing thick columellar 



callus, thickened outer lip, and the deep channel between them. 

 9. — Large worn specimen. Near Thomonde, Republic of Haiti, U.S.G.S. 



station 9779. Cat. No. 328381 U.S.N.M. 



