SCARABUS. 95 
~SCA‘LA. Klein. Scatarta, Auct. 
SCALARIA. Auct. Fam. Scalariana, Lam. Cricostomata, Bl. 
HLescr. Turrited, oval or oblong; spire long, composed of 
rounded, sometimes separate whorls, surrounded by regular con- 
centric ribs; aperture oval, peristome reflected, continuous, en- 
tire. Obs. The typical species of this genus, commonly called 
the Wentletrap, S. pretiosa, is celebrated for the beautiful ap- 
pearance caused by the numerous ribs encircling the whorls, 
and formerly produced an immense price in the market. There 
are many smaller species, some of which are equally elegant. 
Fig. 351, S. Pallasii, Kiener. 
SCALARIA’NA. Lam. A family belonging to the first section 
of the order Trachelipoda, Lam. containing the genera Ver- 
metus, Scalaria, Delphinula. To which may be added other 
genera enumerated in expl. of fig. 345 to 352. 
SCALPEL'LUM. (A little knife or lancet.) Order. Pedunculated 
Cirripedes, Lam. Descr. Flat, quadrated, acuminated, com- 
posed of thirteen valves, one dorsal, arcuated; one pair apical, 
acuminated; one pair ventral; two pair basal, ventral and 
dorsal; two pair lateral, small, sub-quadrate; pedicle scaly. Obs. 
This genus and Smilium, are the only pedunculated Cirripedes 
having thirteen valves; in the latter genus, which we think 
should be united to this, the valves are somewhat differently 
placed, and the pedicle is said to be smooth. Fig. 35, S. vulgare. 
SCA’PHA. Klein. (A boat.) Navicrrua, Auct. 
SCAPHAN’DER. Montf. Buuua lignaria, Auct. Fig. 251. 
SCAPHEL'LA. Sw. (A little Goat.) A genus composed of Vo- 
LUTA undulata, maculata, zebra, Junonia, Auct. and other similar 
species, thus described : “‘ Fusifom, invariably smooth, polished ; 
spiral whorls gradually diminishing in size; apex obtuse, but 
rarely thickened and distorted; pillar generally gibbous in the 
middle, with from four to six unequal plaits; margin of the 
outer-lip thickened.”’ 
SCA’PHITES. (A boat.) Fam. Ammonacea, Lam. and BI. 
Descr. Convolute, chambered, closely related to the Ammo- 
niTEs, from which it differs, in the last whorl being eccentrically 
straightened, and lengthened, and again incurved towards the 
extremity. Only known in a fossil state. Fig. 481, 8. eequalis. 
SCA’RABUS. Montf. (Scarabeus, a kind of beetle.) Fam. Co- 
limacea, Lam. Auriculacea, Fer. Descr. Oval, slightly com- 
pressed, smooth, with somewhat raised varices; spire equal in 
length to the aperture, pointed, consisting of numerous whorls; 
aperture ovate, rounded anteriorly, pointed posteriorly, modified 
by the last whorl; outer-lip sub-reflected, with several prominent 
folds on the inner edge; inner-lip spread over a portion of the 
body whorl, with several prominent folds. Obs. The shells of 
this genus are found, like Auriculz, in marshy places. C. im- 
