PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



TXJRRICULA (SURCULA) PANTHEA, new species. 



Plate 1, fig. 5. 



Shell solid, acute, fusiform, white, with pale brown blotches be- 

 tween the ribs (the nucleus lost), with about 14 whorls; suture closely 

 appressed, obscure with a rounded thread in front of it ; anal f asciole 

 close to the suture slightly depressed, spirally threaded, arcuately 

 striated ; spiral sculpture on the early whorls consisting of a periph- 

 eral keel with one strong thread behind it, the rest of the surface finely 

 closely spirally threaded; the last three or four whorls peripherally 

 waved with narrower interspaces over which the keel and thread are 

 a little swollen, the fine threading continuing; the space in front of 

 the keel on the last whorl with about 25 strong cords with wider inter- 

 spaces; aperture narrow, anal sulcus distinct, without a subsutural 

 callus; outer lip produced, thin, smooth inside, inner lip with a 

 thin wash of enamel, the pillar straight, the canal long, narrow, with 

 BO siphonal fasciole or recurvation. Height of shell without the 

 nucleus, 47; of last whorl, 28; diameter, 13.5 mm. Cat. No. 212348, 

 U.S.N.M. 



Range.— Station 2795, in Panama Bay, in 33 fathoms, bottom tem- 

 perature 64.1° F., U. S. Bureau of Fisheries. 



TURRICULA (SURCULA) LAVINIA, new species. 



Plate 1, fig. 6. 



Shell rather coarse with about a dozen whorls, the cT)lor yellowish 

 or light brown, the nucleus smooth, slightly bulbous ; suture strongl j 

 appressed with a spiral cord in front of it, the whorls moderately- 

 shouldered; the anal fasciole somewhat concave, spirally striate; 

 axial sculpture of (on the last whorl about 12) protractively oblique 

 rounded ribs with subequal interspaces, prominent on the periphery, 

 attenuated on the base and not reaching the canal ; incremental lines 

 sharp, sometimes almost threadlike; spiral sculpture of (from three 

 to five on the spire, about 10 on the last whorl) strong, rounded cords 

 overriding the ribs and not swollen at the intersections, the inter- 

 spaces subequal and sometimes with an intercalated smaller thread; 

 lastly the surface is finely minutely spirally striate in the intervals 

 between the larger threads and cords; aperture narrow^, anal sulcus 

 close to the suture, short and rounded, with a subsutural callus ; outer 

 lip produced, thin edged, more or less crenulate from the spiral sculp- 

 ture, smooth within; inner lip and pillar with a rather thick layer 

 of callus with slightly raised outer edge; pillar straight; siphonal 

 fasciole feeble; canal short, wide, recurved. Height of shell, 49; 

 of last whorl, 26.5 ; diameter, 16 mm. Cat. No. 56085, U.S.N.M. 



Range. — West coast of Mexico. 



