14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 66 



with a hi<^h spire and a long anterior canal. Whorls uniformly en- 

 larging in size, strongly constrneted at the suture, concave at the anal 

 fasciole, and strongly shouldered a little below the middle of the 

 volution. Body whorl strongly shouldered above, and steeply slop- 

 ing to the nearW straight canal. Suture shallowly grooved and 

 wavy. Axial sculpture consists of seven strong, somewhat nodular 

 ribs in front of the anal fasciole; ribs are more prominent on the 

 earlier whorls and lower on the body whorl — scarcely extending 

 down the basal slope. Spirally sculptured with about seven strong 

 cords, overrunning the axials and valleys, and by three or four 

 weak spirals in the anal fasciole; on the body slope and canal, the 

 spirals continue with equal strength; a weak spiral is in front and 

 marginates the suture. Aside from the axials and spirals, fine, 

 close-set growth lines overrun the sculpture, arcuate in the anal 

 fasciole and somewhat irregular over the rest of the shell. The 

 anterior canal is long and slightly reflected anteriorly. 



Dimensions: Type (U. S. Nat. Mus. Cat. No. 352627) measures: 

 Altitude 44 mm. ; greatest diameter 15 mm. 



This species suggests Turricula lavinoides Olsson from the Gatun 

 Stage, Banana River, Costa Rica, but the new species here described 

 is a more slender shell and has a less inflated body whorl. 



Occurrence. — Upper Miocene : Springvale, near Couva, Trinidad, 

 British West Indies. 



TURRICULA (?), species indeterminable 



There are two specimens from station 9197, Manzanilla Coast, 

 which are too poorly preserved for specific determination. In a gen- 

 eral way they resemble Surcula vickshurgensis (Casey), a species 

 from the Oligocene of the Gulf Coastal Plain. The shell is fusi- 

 form, turrited, high spired, and has a long anterior canal. Whorls 

 strongly constricted at the suture Avith the prominent periphery in 

 front of the anal fasciole. Sculpture mainly consists of narrow 

 spiral keels. 



Genus TURRIS Bolton 



TURRIS BRASSOENSIS. new species 

 Plate 2, figs. 7, 8 



Shell fusiform, moderately slender, prominently spirally sculp- 

 tured, nine to ten whorled ; spire high, weakly constricted at the 

 suture. Nuclear whorls distinctly set off from the postnuclear 

 whorls. First two nuclear whorls rather small, slightly inflated and 

 very minutely axially sculptured; four foUow^ing whorls, strongly 

 inflated and each rapidly enlarging. Sculpture of nucleus consists 

 of many prominent, nearly vertical, narrow axials extending from 



