45 



513 Buccinum strigillatum Dall. 

 Off Guadalupe Isl., Baja Cal. 



514 Buccinum taphrium Dall. 



Off Akutan Isl., Alaska, in 167 fathoms. 



515 Mohnia frielei Dall. 



Off coast of British Columbia, in 876 fathoms. 



516 Strombella middendorfii Dall. 



Off Unimak Pass, Alaska, in 36-61 fathoms. 



517 Strombella fragilis Dall. 



Off Unimak Isl., Bering Sea, in 36 fathoms. 



518 Strombella melonis Dall. 



Off Unalashka Isl., Bering Sea, in 225 fathoms. 



519 Chrysodomus ithius Dall. 



"Shell slender, acute with 7 rounded whorls, distinct suture, 

 surface sculptured only with lines of growth and of a pale purple 

 brownish tint. Aperture moderate not flaring, canal short. Length 

 70, of aperture 3 2, breadth of shell 30 mm. U. S. Steamer Alba- 

 tross, station 3202, off the coast of California in 382 fathoms. 

 Extremely perfect young specimens show a few faint spirals occa- 

 sionally." — Dall, U S Nat Mu pr 14:187. 24 Jl 1891. 



520 Chrysodomus periscelidus Dall. 



Off Akutan Isl., Alaska, in 72 fathoms. 



521 Chrysodomus phceniceus Dall. 



Off coast of British Columbia, in 238 fathoms. 



522 Chrysodomus eucosimus Dall. 



Off Unalashka Isl., Bering Sea, in 225 fathoms. 



523 Chrysodomus (Sipho) hypolispus Dall. 

 Bering Sea, in 46 fathoms. 



524 Chrysodomus (Sipho) acosmius Dall. 

 Off Unalashka Isl., in 400 fathoms. 



525 C. (Sipho) halibrectus Dall. 

 Off Akutan Isl., in 351 fathoms. 



526 Trophon (Boreotrophon) scitulus Dall. 



Off Unalashka Isl., Bering Sea, in 225 fathoms. 



527 Trophon (Boreotrophon) disparilis Dall. 



Off coast near Gray's Harbor, Washington, in 52 fathoms. 



528 Puncturella galatea? major Dall. 



Off Akutan Isl., Bering Sea, in 43 fathoms. 



529 Solemya johnsoni Dall. 



Off coast of Baja Cal., in 1,005 fathoms. — Puget Sound to 

 Panama, in 60 to 1,740 fathoms. 



530 Cryptodon bisectus Dall. 



Synonymy quoted: — Venus bisecta Conr., Conchocele bisecta 



