26 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 60 



CYTHARA, species indeterminable 



There is a single specimen from station 9212 which is too poorly 

 preserved for specific comparison. In a general way, it resembles 

 Cytliara cercadica Maury from Bluff 1, Cercado de Mao, Dominican 

 Eepiiblic. 



Genus GLYPHOSTOMA Gabb 



GLYPHOSTOMA CARONENSIS. new species 

 Plate 4, fig. 1 



Shell small, slender, fusiform, solid, stronger axially sculptured 

 than spirally, and consists of two and one-half nuclear and five post- 

 nuclear whorls; whorls inflated and constricted at the suture; suture 

 loosely appressed and wavy. Apical whorl minute, succeeding one 

 larger, inflated and smooth; anterior nuclear whorl faintly sculp- 

 tured Avith fine, close-set axials and fine spiral threads. Postnuclear 

 whorls sculptured with arcuate ribs — seven on the penultimate 

 whorl ; strong and rounded over the lower half of the whorl and nar- 

 rower and lower over the anal fasciole. Spirally sculptured in front 

 of the wide and slightly depressed anal fasciole with three narrow 

 bands separated by about equal interspaces and overrunning both 

 the axials and interspaces. On the back of the body whorl, there are 

 14 of these spiral bands with wider interstices extending from 

 the anal fasciole across the canal. In addition to the axials and 

 spirals, microscopic spiral striae overrun the shell between the spiral 

 bands, and arcuate growth lines cross the anal fasciole. Aperture 

 long and moderately wide. Anal sulcus, deep, well rounded and 

 situated at the posterior extremity of the aperture. Outer lip with a 

 heavy varix behind, upper and middle margin being broken away; 

 columella, within, covered with thin wash of callus. Anterior canal 

 moderately long, slightly expanded in front and twisted. 



Dimensions: Type (U. S. Nat. Mus. Cat. No. 352640) measures: 

 Altitude 8.6 nnn. ; greatest diameter 3.3 mm.; length of aperture 

 4.0 mm. 



The type is founded upon a single specimen. 



Occuireiue.—^lifkdle or lower Miocene : In flood-wash 1 mile south 

 of Brasso, Trinidad. British West Indies. 



GLYPHOSTOMA (?) TRINIADA, new species 

 Plate 4, fig. 4 



Shell rather small, turrited, strongh^ axially and spirally sculp- 

 tured and consists of two and one-half nuclear and five postnuclear 

 whorls. Whorls rapidly enlarging, inflated, strongly constricted at 

 the suture. Suture appressed, wavy, and marginated below by a 

 small cord. Nucleus of moderate size; apical whorl minute, smooth, 



