TO POINT I'.AKKOW, ALASKA. 



Bela murdochiana Hall. 



It'ln min-tlaclihiiin Hall, 1. r., \>., .">' I, plate -, tig. 8. 



Shell whitish, stout, short, with rather coarse .sculpture and very short spire; whorls 

 about five, last much the largest ; inflated, suture deep, almost channeled ; sculpture of 

 numerous (on the last whorl about two to the millimeter) narrow, backwardly convex, 

 tioxnous riblcts, with about equal interspaces, strongest near the suture, not crossing 

 the fasciole, and obsolete near the periphery; lines of growth distinct, crossed by numer- 

 ous (about six to the millimeter) rather coarse threads, of which each alternate one tends 

 to lie .smaller, separated by narrow grooves, and about uniformly distributed over the 

 surface, with a, tendency to a faint carina in front of the fascicle; fasciolc indistinct, outer lip 

 sharp, columella simple, white,; aperture pinkish, canal short, wide; nuclear whorls eroded in the 

 specimens; operciilmi) light horn color, rather broad and short; soft parts pink. Longitude of 

 shell 11.5, of last whor", 10; maximum latitude of shell 8.5""". Museum number, 40900. 



Specimens from Cape Smythcm 2 to 5 fathoms mud and sand, with young B. tenuilirata, from 

 which they differ in lighter color of shell, coarser sculpture, and stouter proportions. The opercu- 

 luin of B. tenuilirata is almost black, narrow, and claw-shaped. It is dedicated to Mr. Murdoch, 

 naturalist of the Point Harrow party. 



Admete Middeiidoiffiaua J>all. 



-tflmclf. I'iridulti Midd. Mai. lloss., ii, pi. ix, tigs. lo-14, lc!41) ; not of Faljriciu.s. 



This form is perfectly distinct from A. ciridula, and may prove to be a Cancellaria. It is 0110 

 of the characteristic forms of the Pacific Arctic, and ranges north from Nunivak Island. The 

 present specimen was obtained in Norton Sound in 5 fathoms mud. Museum number, 40901. 



Bucciiium temie Hi ay. 



. J teach near the station; also at the dredging spot 10 miles west of Point Franklin in 13$ 

 fathoms. Museum number, 409C2. 



The specimens from the last station included some in which the characteristic broken ribbing 

 was only represented by a few puckeriugs near the suture, the remainder of the shell being inflated 

 and smooth, except for the fine spiral striation. At first sight these were very puzzling, and might 

 readily have been taken as new without careful study. 



Buccinum Baeri Middondorll'. 



One specimen from 10 miles oft' Point Franklin in 13i fathoms, dead, and inhabited by a 

 Payni-iis. This is a very constant form, but probably only an extreme form of B. cyanemn. Museum 

 number, -liiin; ;. 



Buccinum ciliatum l-'alincins. 



One dead and two living specimens from 10 miles west from Point Franklin in 13A fathoms. 

 Museum number, -10964. This is always a very recognizable species, but rare in individuals. It 



extends in I-tcring Sea, south to Xunivak Island. 



Buccinum glaciale LiniK : . Plntr . 1ij;s. ?-'. 



lieach near station : also with i'(/u r ; j,, various dredgings. .Museum number, 40905. Com- 

 mon to the whole of the Arctic basin north of St. Laurence Island, as well as on the Atlantic 

 side. Further south it assumes other forms, some of which, without the connecting links, appear 

 very distinct, and have been described as species by Morch and others. The strictly Arctic varie- 

 ties are B. curinalttm Phipps, and a form which in its coarser features so closely simulates /.'. aiH/u- 

 lomuii var. ni>!/ithxHiit (Jray that it has been taken for it. and the consolidation with Ii. <jl<-il<- of 

 B. ii(/nloxHi suggested in consequence. The flue sculpture in perfect specimens will always serve 

 to distinguish them. Normal specimens would never be confounded with each other. 



Buccinum angulosum Gray. Plate - -. li^s. 1--1. 



I. Var. anijiiloKHiH C'nty, I'.ccclicy's Voya^r. /cn"d., |i. l-_>7, t. :iti, I. ii. l.-M-'. 

 /,'. A'iir. normnlix ilall. 

 ''. A'ar. siilx-m/dlii l>all. 



The normal form w;is obtained by the expedition on the beaches near the station and at Capo 

 Smythe: thence to 5 fathoms. Museum numbers, 409<iii-7. The writer has also obtained it at 



