6 PROCEEDINGS OF THE ACADEMY OF [Jan., 



genus is not closely related to Terehra or the subgenus Mazatlania, 

 but seems to belong to the Terebridce. The Japanese species defined 

 above is the t3'pe of this group. 



CONIDuE. 

 Conus dorinitor n. sp. PI. I, figs. 9, 9a. 



Shell rather narrow and long, the diameter somewhat more than ^ 

 the length, the spire elevated, concave-sided, \ the length of the shell. 

 The apex is broken off, 11 whorls remaining, the peripheral angle of 

 each projecting above the sutiu'e. The last 2^ are even at the periphery, 

 but tho^e preceding are nodulose. The concave, steeply sloping 

 upper surface of each whorl is closely and regularly, finely costulate, 

 the riblets arcuate, and decussated by several unequal spiral shallow 

 grooves. The last whorl has almost straight lateral outlines, and is 

 sculptured with closely punctate spiral grooves, very faint near the 

 angle of the whorls, but becoming stronger and closer toward the base. 

 The siphonal fasciole is closely spirally striate, not punctate. The 

 aperture is long, narrow, and of equal width throughout. 



Length 44, diam. 16 mm.; aperture 34 mm. long. 



Kikai, Osumi, in a deposit probably Pliocene. Types No. 85,950, 

 A. N. S. P., from No. 1,552 of IMr. Hirase's collection. 



This cone is related to C. acutangulus Lam., but is longer than that 

 species. C. aculeiformis Rve. is similar in shape, but differs in sculp- 

 ture. The specimens show no color. 



Conus kikaiensis n. sp. PI. I, figs. S, 8a. 



Shell long and narrow, the diameter al^out one-third the length, 

 the elevated and slightly concave-sided spire one-fourth the length. 

 Whorls remaining 10, nearly fiat and steeply sloping, the smooth 

 peripheral angle projecting a little alcove the suture, the surface above 

 it sculptured with 3 to 5 low, unequal spiral cords, and fine, arcuate 

 growth-lines. I^ateral outlines of the last whorl nearly straight. 

 Sculptm^e of regular, rather strong, narrow spiral grooves, which are 

 somewhat striate across, weaker aljove. There are 23-25 of these 

 grooves alcove the convex siphonal fasciole, which is indistinctly finel}- 

 striate spirally. In some specimens the ffat intervals between the 

 grooves are divided in the middle b}- a smaller groove. 



Length 40-41, diam. 13 mm. 



Kikai, Osumi; fossil in a Pliocene (?) deposit. Types No. 85,948, 

 A. N. S. P., from No. 1,553 of Mr. Hirase's collection. 



This species is not unlike C. dormitor and C. aculeiformis in general 

 shape, but it differs essentially from both in the sculpture of the spire. 



