178 r.xrr.nrruvN TO POINT P.AKKOW, ALASKA. 



Zonites (Hyalina > radiatula Alder. 



IhialiiHi i>rlliu-i<la Lrlmert. I. 0, 



Thrt'i 1 or Com specimens with 11 a- preceding. 



Tin- above \\erc obtained from moss used in packing and rejected as rubbish, which was exam- 

 ined by the liev. F. I.elinert, of Washington, who published in Science Itccord an interesting list 

 of plants obtained from it. together with a spider, a minute beetle, and the above-mentioned shells 

 By the kindness of .Air. Lehnert they have been carefully compared with authoritative specimens, 

 and lie joins in the identification above made. 



Bela (exarata Moll. 



This specimen is too dead and worn to be determined With certainty. It was obtained by 

 dredging 10 miles west from Point Franklin August .'.!!, 1SS.",, in 13J fathoms. Museum number, 

 40955. 



Bela (scalaris Jliill. , 



This specimen was in much the same state as the pit-ceding. It was dredged in Norton Sound 

 in ."> fathoms mud. Museum number, -10956. 



Bela simplex MiiUk-iuloiii'. 



/.'. arr/irn. A. Adams. 

 !i iii'/as Vcrkrnzcn. 



One dead but perfect .specimen from 5 fathoms mud and sand at Cape Smythe. This species 

 has been confounded with /.'. hrriyutn Dall, which is about one-eighth as large when adult, and 

 altogether different in color and form. B. la-vigata has hitherto only been found in Norton Sound, 

 where it is abundant. /;. xii,ij>lc.>- has not yet been found in Norton Sound, but has a wide distribu- 

 tion in the boreal and Arctic region, reaching as far south as Chirikoff Island in the North 'Pacific. 

 It has been obtained on the northern shores of Norway, and is not rare in Bering Sea. The present 

 specimen is uni colored, but it is usually prettily contrasted with white on the spire and plum-color 

 anteriorly. Museum number, 40!I57. 



Bela tenuilirata Dull. 



/.V /K var. teiiuiliraia, Dall, AII(. Jouru. Couch., vii, ]>. 'J;r, Xovrnibcr, 1871. 



.' //. xin>)>1t.r, (i. O Sars, Moll. Reg. Arct. Nov., 1. 17, f. 4, 1878, not of Midileiulorff. 



This species, distinguished from the preceding by its spiral strife and thinner shell, was origi- 

 nally described from a young specimen obtained in Xorton Sound. Since then the writer lias 

 obtained it of much larger size from the Arctic, reaching nearly an inch in length. It was collected 

 by Murdoch on the beach near the station, and also at Cape Smythe in 5 fathoms. Museum 

 number. 4005S. 



Bela harpa 1 >all. 



MH IIIII-IHI Dull, 1'roc. U. S. \at. Mns. 1--I, }<. ;Vj:!. 



Shell fusiform, moderately thin, six-whorled; whorls rounded, suture distinct; sculpture, con- 

 sisting of (on the last whorl) 23 stout, uniform, slightly flexuous, rounded ribs, extending from the 

 suture to the canal, with slightly narrower interspaces; lines of increase distinct, sometimes thread- 

 like: these are crossed by numerous close-set spiral threads separated by narrower grooves, both 

 faint near the suture ; threads growing gradually stronger, regularly wider, and coarser toward the 

 canal, near which they are stronger than the obsolete ends of t lie tiansver.se ribs: anal fascicle indis- 

 tinct, aperture narrow, elongated, with an acute posterior angle : outer lip thin, columella simple, 

 canal rather wide : color of shell whitish, with a reddish tinge anteriorly, especially on the last whorl ; 

 interior of aperture reddish, of the canal pure white. Longitude of shell 17, of last whorl IL',5, ot 

 aperture. 10: latitude of shell S, of aperture .">..">""". First found by the writer at Nnuivak Island 

 in 1S71. One specimen, dredged by the Point P.arrow Expedition in 1.'!.] fathoms, 10 miles west: 

 of J'oint Franklin, Arctic Ocean. Museum number. Kt'.t.V,). 



This species has been compared with the Jielns in the chief museum and private collections of 

 Northern Europe, and seems amply distinct from any of the species contained in them. 



