1917.] NATURAL SCIENCES OF PHILADELPHIA. 163 



Conus larvatus n. sp. 



The shell is extremely slender, the length about 3| times the 

 diameter, fusiform. Spire produced, composed of flat whorls, the 

 beaded periphery projecting above the suture; apical whorls lost. 

 The last whorl is angular, the angle set with 25 bead-like tubercles, 

 which are a little lengthened in the spiral direction; elsewhere, above 

 and below the angle, it has close, even fine spiral cords with very 

 sharp axial striation in the intervals. Upward, towards the shoulder, 

 the striae slowly retract. The aperture is extremely narrow. The 

 inner lip is excavated in its lower fourth. 



Length (truncated) 33, diam. 9.5 mm.; 5| whorls remaining. 



Type No. 2550, A. N. S. P. 



This species, C. gahbi and C. pernodosus, were lumped by Gabb 

 under C. orbignyi Audouin, a recent species inhabiting the Eastern 

 Seas. C. gracilissimus Guppy, from the Oligocene of Jamaica, is 

 closely allied, but it is a distinct species, with wide, flat, revolving 

 costae. 



C. larvatus is narrower than C. tortuosostriatus Toula, and differs 

 conspicuously in contour. Toula's species has more resemblance to 

 C. gracilissimus Guppy. 

 Cancellaria gabbiana n. sp. 



The shell is short, turbinate solid, of about 7 whorls. The bulbous 

 embryonic shell consists of If convex, smooth whorls. Following 

 whorls have slightly retractive axial ribs much narrower than their 

 intervals, about 18 on the last whorl. At intervals of about a half 

 whorl there are rather broad varices. There are 18 spiral cords 

 hardly half as wide as their intervals and passing over ribs and 

 varices. Siphonal fasciole is prominent, surrounding a small um- 

 bilicus. The aperture is large, oval; outer lip is somewhat effuse 

 at the outer-basal part, but not retracted; sculptured within with 

 14 sharp lirse. Columellar plaits are not very strong, the upper one 

 thin, middle one somewhat blunt. A broadly spreading but thin 

 parietal callous coats the face in front of the aperture. 



Length 24.5, diam. 19.4 mm.; length of aperture 17 mm. 



The type and another specimen were among unassorted material. 

 No. 3288, A. N. S. P. 



Cancellaria (Trigonostoma) insularis n. sp. 



Cancellaria brevis Sby., Gabb, Tr. Am. Philos. Soc, XV, 1873, p. 236. Not 



of Sowerby. 

 ? Cancellaria {Trigonostoma) aff. C. bullata Sow., Toula. Jahrb. k.k. Geol. 



Reichsanstalt, LXI, p. 504, PI. 30, fig. 10. 



The shell is short and broad, openly umbilicate, solid. There are 



