312 PROCEEDINGS OF THE ACADEMY OF [NoV., 



Later whorls with many fine ribs, intervals spirally grooved; 

 clear yellow. 22.7 x 12 mm V. turhen kanaka n. siibsp. 



3. Rather short species with about 15 or fewer axial folds on 



the last whorl 4 



Having more numerous axial folds or ribs 7 



4. Stout shells with strongly coronate whorls and coarse spi- 



rals 5 



Whorls axially plicate, not coronate, with very fine, close 

 spiral striation 6 



5. Spiral cords strong; no lirae in the throat V. tuherosa (Rve.). 



Spiral cords less strong; throat lirate 



V. pairiarchialis (Gmel.). 



6. 12x7 mm. to 18x8 mm. V. dermestina (Lam.). 



About 9x3.7 mm.; white with brown lineolation. 



V. 7iodulosa (Pse.). 



7. Small axial ribs in some of the intervals of the larger 



V. hella (Pse.). 

 Axial ribs about equal 8 



8. A finely striate depression in the ribs a short distance below 



the suture; small, chocolate-colored, with the upper surface 



maculate with white V. tusa (Rve.). 



Without such depression or coloration 9 



9. Spiral cords running over the axial ribs 10 



Spiral sculpture appearing as transverse grooves in the inter- 

 vals only 13 



10. Whitish, with pale markings; stippled lirae in the throat 11 

 Marked with tawny or brown; stout in form; continuous 



threads in the throat 12 



11. Subtubercular and angular close below the suture; a faint 



fleshy band with sparse brown dots on the ribs. 



V. wisemani (Dhn.). 



Third spiral below suture slightly prominent; base pale vina- 



ceous V. compta (Ad.) 



12. Axial ribs rather coarse, continuous; many fulvous spiral 



bands; 18-20 mm. long V. aureolata (Sw.). 



Axial ribs very fine, cut by spiral grooves; tawny or brown 



with a white band and base; about 9 mm. long 



V. picea (Pse.). 



13. Minute species, less than 10 mm. long; dark-colored 14 



Larger shells, over 15 mm. long 15 



14. Chocolate, sometimes with a white band; about 8x3 mm. 



V. mica (Rve.). 

 Fusiform, vinaceous-tawny, with burnt umber bands at per- 

 iphery and base; about 30 rounded axial ribs on last whorl, 

 intervals with wide, low, spiral cords separated by im- 

 pressed lines, 4 on penult whorl; 4 plaits; 6.5x2.7, aper- 

 ture 3 mm.; 5| post-embryonic whorls V. micra n. sp. 



15. Fusiform, white with a cinnamon band l)elow periphery; at 



periphery are narrow brownish spots between the ribs, 



