GASTROPODA (pECTINIBRANCHIA) . 
Moll, 39 
channel ; radula with two rows of hooks which are flattened and bifur- 
cate at the base, lanceolate towards the tip. T. nana (Loven, as Trito- 
nium) =. Columbella nana of some authors ; coast of Norway, 40-100 
fath. Sars, Moll. arct. Norveg. p. 221, pi. xvi. fig. 2, radula, pi. viii. fig. 3. 
Bela ohliqua^ angulosa^ scalaroides^ assimilis, conoidea, expansa, spp. nn., 
pyramidalis (Strom.) = vahli (Beck) with var. n. semipUcata, pingeli 
(Beck), canccllata (Migh.), declivis (Lov.) var., elegans (Moll.), cinerea 
(Moll.), nohilis (Moll.), scalaris (Moll.) with var. n. ecarinata, rugulata 
(Moll.), exarata (Moll.), mitrula (Lov.), Jiarpularia (Couth.) = woodiana 
(Moll.) with var. rosea, trevelyana (Turt.), .viridula (Moll.), tenui'costata 
(M. Sars), hicarinata (Couth.) with var. rufescens, violacea (Migh.) = 
cylindrica (Moll.) with var. loivior, simplex (Middend.) = Icevigata (Dali.) 
= gig as (Verkr.), all from the Arctic Coast of Norway. Sars, Moll. arct. 
Norveg. pp. 222-240, pi. xvi. figs. 3-20, and pi. xvii. figs. 1-4 ; radula, 
pi. viii. figs. 1-17, pi. ix. figs. 1-9 ; operculum of D. nohilis, pi. xviii. 
fig. 42. 
Bela gilpini, multicostata, and undata, spp. nn., Verkriizen, JB. mal. 
Ges. V. pp. 226-229, Bay of Fundy. 
Typhlomangelia (M. Sars) nivalis (Loven) ; Sars, Moll. arct. Norveg. 
p. 241, pi. xvii. fig. 1, radula, pi. ix. fig. 10, operculum, pi. xviii. fig. 43, 
coast of Norway, from Christiania to Finmark, 80-300 fath., rare. 
Daphnella cancellata, sp. n., Hutton, J. de Conch, xxvi. p. 18, New 
Zealand. 
Spirotropis, g. n. Shell with blunt mamillar apex and numerous keeled 
whorls, aperture with a deep notch far from the suture and an elongate 
channel ; operculum distinct ; radula with rudimentary median plates, 
semilunar toothed lateral and lanceolate marginal plates. S. carinata 
(Philippi, as Pleurotoma), Northern Norway, 80-300. fath., and 
Hebrides. Sars, Moll. arct. Norveg. p. 242, pi. xvii. fig. 5 ; radula, pi. ix. 
fig. 11; operculum, pi. xviii. fig. 44. [Radula very different from that 
of the other Fleur otomidce.'] 
Terebrid^. 
Terehra lauretanoe, sp. n., Tenison-Woods, P. Linn. Soc. N. S. W. ii. 
p. 262, Port J ackson Heads, 45 fath. 
CANCELLARIIDiE. 
Admete viridula (Fabr.) varr. nn. undata, Icevior, elongata, and distincta, 
Novaya Zemlya, Leche, Sv. Ak. Handl. xvi. 2, pp. 47 & 48, the two latter 
pi. i. figs. 13 & 14. 
Admete viridula (Fabr.) with var. undato-costata (Verkriizen) and vari n. 
producta, Sars, Moll. arct. Norveg. p. 217, pi. xiii. figs. 1 & 2. 
Cerithiopsidas. 
Cerithiopsis scalaris, sp, n. (described Atti Ac. Palerm. 1875, as corona 
var.), Monterosato, J. de Conch, xxvi, p. 319, Coast of Algeria. 
