1882.] ‘LIGHTNING’ AND ‘PORCUPINE’ EXPEDITIONS. 675 
Family III. FissureLuip2. 
Y 1. Fissurisepra Granutosa’, Jeffreys. (Plate L. fig. 9.) 
SHELL roundish-oval, conical, but somewhat depressed except 
towards the apex, thin, opaque, and lustreless: sculpture, very 
numerous fine and delicate strie which radiate from the apex or 
beak, and are closely covered with minute tubercles ; some of these 
strize do not quite extend to the apex, and are alternately larger and 
smaller; the apex is irregularly tubercled: margin finely crenated 
or notched by the striz: foramen nearly circular: inside smooth, 
but not polished: septum triangular, covering about half only of the 
foramen on the underside. L. 0°125, B. 0°1. 
‘ Porcupine’ Exp. 1870: Atl. St. 24. A single specimen. 
Distribution. Drobak, Norway ; 50 fms. 
In my paper on Norwegian Mollusca (‘ Annals and Magazine of 
Natural History ’ for June 1869) I named this remarkable shell as 
F. papillosa of Seguenza; but I afterwards found that I was mistaken 
as to the species. The shell now described is more delicate, and the 
sculpture is much finer, with regular and close-set strize which are 
studded with far more numerous and minute tubercles. The fora- 
men is circular in the present species, and triangular in /. papillosa. 
Seguenza’s genus Fissurisepta differs from Fissuella in having an 
internal septum or plate, as in Propilidium and Puncturella, and a 
foramen as in the last named genus; but it wants the spire which 
is peculiar to those two genera, and which is never deciduous. 
Y 
vw 2. FissuRISEPTA PAPILLOSA, Seguenza. 
F. papillosa, Seg. Paleont. Malac. d. Messina (Ann. dell’ Accad. 
d. Aspir. Nat. 1862), separate copy, p. 10, tav. iv. f. 2, 2a, 20. 
‘Porcupine’ Exp. 1870: Atl. St. 16, 17, 17a. Several speci- 
mens. 
Fossil. Miocene? : Rometta near Messina. Pliocene: Calabria. 
This species varies with respect to the size of the tubercles or 
papillz. Some recent and fossil specimens have very few and slight 
scattered tubercles, or are nearly smooth. The recent are rather 
larger than the fossil specimens, and have usually stronger 
tubercles. 
y 3. FissuRISEPTA ROSTRATA, Seguenza, 
F. rostrata, Seg. Paleont. Malac. d. Messina (Ann. dell’ Accad. 
d. Aspir. Nat. 1862), separate copy, p. 10, tav. iv. f. 3, 3a, 3d. 
‘Porcupine’ Exp. 1870: Atl. St. 16,17, 17a. Several specimens 
of this extraordinary shell, exactly agreeing with fossil specimens 
from Sicily which I received from my kind friend and corre- 
spondent, Prof. Seguenza. 
Distribution. Bay of Biscay (‘Travailleur’ Exp. 1881); 1093 
fms. Off Bermudas (‘ Challenger’ Exp.) ; 1375 fms. 
Fossil. Miocene?: Sicily. Pliocene: Sicily. 
“1. Puncrurecia prorunnt, Jeffreys. (Plate L. fig. 10.) 
P. profundi, Jeffr, in Ann. & Mag. N. H. March 1877, p. 232. 
Covered with granules, 
