Magn. long. 27, lat. 147", apert. long. 147", diam. 
VITAE, se AO ey 
Forekomst: Stat. 192 — 649 Favne. 
Der er kun fundet et større og et ganske lidet Exem- 
plar, men begge døde. Hvorvidt man her har en ny Art 
for sig eller en Varietet af en af de bekjendte, er vanskelig 
at sige. Dens nærmeste Slægtning maatte vel være B. Fin- 
marchiumum eller hydrophanum, idet den glatte, glindsende 
Bpidermis og koniske Form ligne paa Varieteter af disse 
Arter, men Sculpturen er saa væsentlig afvigende, at den 
har ingen Sammenligningspunkter. 
Dr. Jeffreys skriver til mig, at han har denne Form 
fra “Porcupine” Exped. 1869 Stat. 65 — 345 Favne, “but 
consider it B. groenlandicum, var. (perhaps Finmarchiamum).” 
Det forekommer mig dog at være en Støtte for Formens 
Artsberettigelse, at den optræder uforandret paa saa for- 
skjellige Punkter. 
Buccinum Terræ Novæ, Beck. 
Tab. IIT, Fig. 13—16. 
Tritonium Terre Nove (Beck) Merch. Cat. Moll. Spitzb. 
Pag. 14. 
Buccinwm Donovani, Reeve. Conch. icon. Fig. 2. 
B. undatum, var. clathratum, 3. Wood. Supp. to the 
Crag. Moll. Pag. 18, Tab. IT, Fig. 3 a, b. 
B. Terre Nove, Leche, 1. c. Pag. 61, Tab. II, Fig. 33. 
. B. Totten, Friele. Oat. d. Spitzb. Moll. Pag. 278. 
3 
Forekomst: Stat. 366 og 374. Fra 20 til 60 Favne. 
I min “Catalog d. Spitzb. Moll.” har jeg opført denne 
Form under Stimpson’s B. Tottemi. Jeg er vistnok ikke 
bleven overbevist om, at dette er feilagtig, men efter at 
have seet en Del mere af den nordamerikanske Form, er 
jeg bleven tvivlende om det-er praktisk heldigt at slaa disse 
to sammen. At de kan gaa over i hinanden, derom har 
jeg overbevist mig, men saa findes der ogsaa Overgange til 
groenlandicum, og skal man være streng i Artsbegrebet inden 
denne Slægt, bliver der ikke mange Arter tilbage. 
Neppe nogen Art er saa stærkt varierende som denne, 
hvad man ogsaa kan dømme efter de 3 afbildede Exempl. 
Fig. 13, 14 og 15, der alle er taget paa samme Lokalitet, 
nemlig Adventbay (Spitsbergen). 
Som Regel har den grove Spiralribber og imellem 
disse ligge talrige finere; hos alle mine Exemplarer findes 
der Længdefolde paa Tophvirvlerne, der igjen forsvinde paa 
Hovedvindingen. Den secundære Striering bestaar af yderst 
fine, meget tætte Spiralstriæ, der er svagt bølgende eller 
næsten chagraineret, fremkommen ved at krydses af talrige 
fine Væxtlinier. Denne mikroskopiske Sculptur findes ogsaa 
“Den norske Nordhavsexpedition. Herman Friele: Mollusca. I. 
33 
Magn. long. 27", lat. 14", apert. long. 14", diam. 
mad Of". 
Habitat: — Station 192, in 649 fathoms. 
Only two specimens were obtained, one a compara- 
tively large and the other a very small individual, and both 
dead. Whether this form represent a new species, or merely 
a variety of one of those already known, is difficult to de- 
cide. It resembles some varieties of B. Finmarchianum or 
hydrophanwm in the eonical form and smooth, glistening 
epidermis; but the sculpture is wholly different, with not a 
single approximating feature. 
Dr. Jeffreys writes me, that he has B. sulcatum 
from the “Porcupine” Expedition, 1869, Station 65, at 
345 fathoms, “but regards it as B. groenlandicum, var. (pos- 
sibly B. Finmarchianwn).” The occurrence in so different 
localities seems to me to be a proof in favour of the spe- 
cific distinctness of this form. 
Buccinum Terre Nove, Beck. 
PI. III, figs. 13—16. 
Tritonium Terre Nove (Bech) Mörch. Cat. Moll. Spitzb., 
p. 14. 
Buccinwm Donovami, Reeve. Conch. icon., fig. 2. . 
B. undatum, var. clathratum, 8. Wood: Supp. to the 
Croc. Moll py te Rly We åa Då 
B. Terre Nove, Leche, 1. c., p. 61, Pl. II, fig. 33. 
B. Tottemi, Friele. Cat. d. Spitzb. Moll., p. 278. 
Habitat: — Stats. 366, 374; from 20 to 60 fathoms. 
In my “Catalog d. Spitzb. Moll.,” this form is refer- 
red to Stimpson’s B. Tottemi, and I am not as yet convin- 
ced that in so doing I was mistaken; but having since seen 
a good many more North American specimens, I think it 
most practical to leave these two forms, B. Terre Nove and 
B. Totteni, specifically separated. That they do sometimes 
merge into each other, I have satisfied myself; but there 
are also transition-forms to groenlandieum; and if a searching 
criticism be applied to the species of this genus, few would 
indeed be left. 
There is not, perhaps, another species of the genus 
that varies to such an extent, as a glance at the 3 speci- 
mens represented in figs. 13, 14, and 15 — all of them 
from the same locality (Advent Bay, Spitzbergen) — will 
suffice to show. 
As a rule, the shell is sculptured with coarse spiral 
ribs, or carina, between which are numerous finer ones, 
All of my specimens have the top whorls with longitudinal 
folds, which disappear on the body-whorl. The secondary 
striation consists of exceedingly delicate, closely disposed 
spiral striæ, which, being intersected by numbers of delicate 
lines of growth, give an almost shagreened appearance to 
5 
