VARIETIES OF NASSA. 65 
Thersites, Brug. ; variety short and broad, passing into the 
next, 
Bimaculosa, A. Ad. P.Z.S., 1851, p. 102, 3. Reeve, pl. 10, 
f Gl: Philippines. 
Withont the spots. 
With the back of the shell resembling, and that very closely, 
the back of N. crassa, Koch. 4 
Shell almost smooth. 
», Strongly ribbed, 
»  eancellated. 
», asmall variety ; is the N. emersa, Carp’t’r., Brit. Mus. 
Callospira, A. Ad. P.Z.S., 1851, p. 102. Reeve, pl. 10, 
f. 66. Apex decollated. Philippines. 
Cancellata, A. Ad. P.Z.S., 1851, p.—. Reeve, pl. 23, 
f. 155. Philippines. 
Callosa, A. Ad. P.Z.S., 1851, p. —. Reeve, pl. 28, f. 185. 
Jonasi, D’k’r. Phil. Abbild., pl. 2, f. 10. 
Labecula, A. Ad. Reeve, pl. 25, f. 166. 
Australia, Philippines, &c. 
Mangelioides, Reeve, pl. 23, f. 152. 
2 Gibbosula, Linn. Variety with two prominent nodules on 
the back, olive, freckled with bluish-white. Reeve, 
pl. 10, f 64. Philippines, 
Pale brown, with three tubercles an the back. 
Bay of Alexandria, 
7 with only two tubercles. 5 
Smooth, without nodules. e, 
White. 3 
Dark purple. n 
Spire decollated. ie 
Circumcincta, A. Ad. Reeve, pl. 11, f.71. Spire decollated. 
Bay of Alexandria, 
Spire perfect. ef 
Spire half dissolved. o 
Perlata, Meusch. Reeve, pl. 11, f. 72. Philippines, 
=granifera, -Kiener. 
Of a dark rufous-brown colour. 
With undulated punctured transverse lines. 
