171) 



crossed by three spiral riblets, the intersections minutely beaded, 

 hodv whorl with four spiral stria 1 , besides a line below the periphery. 

 Length, ") mill. 



M';i;t, rninrnn. Af/nnfir. 



('. I'K.M i;in M, Jeffreys. PL 36, fig. 71. 



- lid, opaque, pair yellowish white, glossy; whorls 13-1 4, >ine- 

 what convex, with curved, oblique Longitudinal ribs, about 30 on 

 the last and 'JO on the penultimate whorl, three uppermost whorls 

 nearly smooth, base marked with flcxuou- striae, in continuation of 

 the rib-, periphery of last whorl with a spiral ridge. 



Lc n-th. 10 mill. 



Between Scotl<i/i<l mid Faroe Is. 



C. I)<nii> />' a!, Friele, is a synonym. 



C. BIZONALIS, Jeffreys. PI. 36, fig. 72. 



Tins is a fragment obtained by the Porcupine Expedition in the 

 North Atlantic O. It shows longitudinal distant riblets crossed by 

 two distant spiral riblets on eaeh whorl. 



( !. \Y HIT I:A VESII, Verrill. PI. 36, fig. 73. 



Whorls an.irtilar, with Longitudinal riblets forming tubercles on 

 the anirle, and an inferior row of tubercles just below the suture; tin- 

 body whorl has a spiral thread below the angle, with a smooth ha- -. 



Len.LTth, 4 mill. 

 Off Martha's Vineyard, Mass. (365-500 fins.) ; Gulf of St. LHH-, 



(200 fms.). 



C. costut'it'i. Whit raves (not Moller), is a synonym. 



Section KTMI-TA, Morch, 1868. 



-i i LATA, Moller. PL 36, fig. 74. 

 Shell solid, seinitransparent, glossy, white, with sharp, promiiirnt 



Longitudinal ribs, cut otf at the periphery, by a spiral ridge; ribs 



traveled and indrntrd l>y two or three thread-like impressed lines 

 Or Btriffi, bendes slighter, finer intrrmrdiatr stria- in theintrrstir 

 the ribs and <>n the base. Length, 10 mill. 



Northern Europe Arctic America New En<jl<tn<l. 

 It i- />////';//// arctiettm, Morch, and C. Ntn'mlix. Woodward. 



fyurt <l .s//< 0iei << 

 < . II \M.I^ \\ : \. ( '. i . ,\ n.i \. Mont>. .!/"///' rranean. 



C, ' OrOULJkTA, A. Ad. J,ij,<in. 



