70 
5IOLLU&CA. 
Nassa, Lam. 
The side of the columella is covered by a more or less broad and 
tliick plate, and the emargination is deep, but without a canal. The 
animal resembles that of a true Buccinum, and there are gradual 
transitions among the shells, from one subgenus to the other* * * § . M. 
Delamarck calls 
Eburna, Law., 
Those, which to a smooth shell without a plicated margin, add a 
Avidely and deeply umln'icated columella. The general form of their 
shell is closely allied to that of the Olivtc. Their animal is unknown f. 
Axcillaria, Lam. 
The same smooth shell, and at the loAver part of the columella a 
marked lip; there is no umbilicus, neither is the spire sulcated. The 
animal of several species resembles that of the Olivee, the foot being 
still more developed J. The same naturalist calls 
D oLiuAi, Lam. 
Those in which projecting ribs, that follow the direction of the 
Avhorls, render the margin undulated ; the inferior whorl is ample and 
ventricose. Montfort subdivides them into 
Dolium, properly so called, Avhere the lower part of the columella 
is twisted§, and into 
Perdix, where it is trenchant. || 
Their animal has a very large foot, widened before ; a proboscis 
longer than its shell, and slender tentacula, on the external side of 
which, and near the base, are the eyes; the head has no veil, nor has 
the foot an operculum. 
II arpa, Lam. 
''I’he Harpte are easily recognized by the projecting, transverse ribs 
on the whorls ; tlie last of which forms a lip on the margin. The 
shell is beautiful, and the animal has a very large foot, pointed behind, 
* Buccinum arcuJaria, List., 970, 24, 25 ; — B. pullus, List., 971, 26; — B. (jib- 
hosulum. List., 972, 27, and 973, 28 ; — B. tcssellatum, List., 975, 30 ; — B.fossile, 
Martini, III, xciv, 912, 914 ; — B. marginatum. Id. exx, ilOl, 1102; — B. 7-eficula- 
/am. List., 966. 21 : — B. vulgafum, Martini, IV, cxxiv, 162, 166 ; — B. stolatum, 
Tb., 1167, 1169 ; — B. glans, List., 981, 40; — B. papillosum, List., 969, 23 ; — B. 
nititlulum, Martini, IV, exxv, 1194, 1195. 
•f Buccinum glabratum, List., 974, 29; — B. sph'atuni, List., 981, 41 ; — B. zey- 
lanicum. Martini, IV, cxxii, 1119. 
X Ancillaria cinmnnoniea, Lam., Mart., II, pi. 65, f. 731 ; rolufa ampla, Gm., 
Mart., Ib. f. 722, and the species described by M. de Lamarck and figured in the 
Encyc. Method., 393. See also the Monograph, No. 36, p. 72, of the Ancillaria: by 
M. W. Swainson, Journ. of the Sc. and Arts, No. 36, p. 272. 
§ Buc. olcarium. List., 985, 44, and Sowerb., Gen. of Shells, No. 29 : — B. galea, 
List., 898, 18 ; — B. dulium, List., 899, 19 ; — B. fasciaium, Brug., Mart., Ill, cxviii, 
1011 ; — B. pomum. Id., II, xxxvi, 370, 371. 
II Bucc. perdix. List., 984, 43. 
