12 PROCEEDINGS OF THE NATIONAX. MUSEUM. vol.64. 



l*"'iG. 10. — Axial section of specimen from same locality as specimen shown in Fig. 

 4. Cat. No. 328390, U.S.N.M. 

 11. — ^Axial section of large specimen. Near Thomonde, Republic of Haiti, 

 U.S.G.S. station 9782. Cat. No. 328384, U.S.N.M. 



Plate 2. 



All figures natural size. 



Fig. 1. — Orthaulax conoides Woodring. Axial section. Rio Guajataca, Porto 



Rico, U.S.G.S. station 1/139. Cat. No. 328396, U.S.N.M. 

 2. — Orthaulax conoides Woodring. Axial section of type. Same locality. 



Cat. No. 328395, U.S.N.M. 

 3. — Orthaulax aguadillensis Maury. Apertural view of small specimen. In 



the last volution the whorl reaches the tip of the spire. Near 



Thomonde, Republic of Haiti, U.S.G.S. station 9782. Cat. No. 328391, 



U.S.N.M. 

 4. — Orthaulax aguadillensis Maury, Axial section. San Cristobal, Cuba, 



U.S.G.S. station 1/186. Cat. No. 328394, U.S.N.M. The rock in the 



cavity of this specimen contains nests of Miogypsina antillea (Cush- 



man). 

 5. — Orthaulax aguadillensis Maury. Dorsal view of small specimen. Near 



Thomassique, Republic of Haiti, U.S.G.S. station 9946. Cat. No. 



328392, U.S.N.M. The enveloping whorl is broken away, revealing 



the varices on the early whorls. 

 6. — Orthaulax aguadillensis Maury. Dorsal view showing spiral threads. 



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



328386, U.S.N.M. 

 7. — Orthaulax conoides Woodring. Dorsal view of tjT)e. Rio Guajataca, 



Porto Rico, U.S.G.S. station 1/139. Cat. No. 328395, U.S.N.M. 



