222 
4. Scutus corrueGatus, Reeve. 
Parmophorus corrugatus, Reeve, Proc. Zool. Soc. 1842; Conch. 
Syst. pl. 139. f. 1. 
Hab. ? Mus. Cuming. 
5. Scurus pumepus, Quoy et Gaimard. 
Parmophorus taumidus, Quoy et Gaim. Voy. de I’ Astrol. pl. 69. f. 6. 
—Parm. gibbosus, Anton.—? Parm. breviculus, Blainv. Bull. des Sci. 
1817; Sowerby’s Gen. (Emarg.) fig. 2. a 
Hab. Madagascar. Mus. Cuming. 
6. Scurus imBricaTtus, Quoy et Gaimard. 
Parmophorus imbricatus, Quoy et Gaim. Voy. de I’ Astrol. pl. 69. 
f. 17, 18. 
Hab. Island of Burias. Mus. Cuming. 
7. Scurus ancustatus, A. Adams. S. testd elongatd, subqua- 
drangulari, lateribus angustatis, coarctatis ; dorso plano, con- 
centrice striato, vertice subcentrali, postice declinato ; extremi- 
tate anticd sinuatd, posticd excurvatd, subelevatd. 
Hab. Eastern Seas. Mus. Cuming. 
5. A MonoGRAPH OF THE GENUS MonoptTyGMaA oF LEA. 
By Artuur Apams, R.N., F.L.S. etc. 
Genus Monopryema, J. Lea. (? Menestho, Mill.) 
Animal unknown. 
Shell subulately turreted, transversely striated, apex simple, acute ; 
aperture oval, longer than wide, rounded and entire in front ; colu- 
mella with a single oblique fold. 
This genus differs from ct@on in being elongated, and in having 
an oblique fold, instead of a transverse plait on the columella. 
. 1, Monopryema striata, Gray. M. testdé turrito-subulatd, so- 
lidd, olivaced, anfractibus planis, transversim sulcatis, sulcis 
profundis, distantibus ; aperturd oblongd, intus albd. 
This species, which is typical, is a very thick and strong shell, with 
a somewhat convex lateral outline, and strongly transversely grooved 
across the flattened whorls. Mus. Cuming. 
2. Monopryema FuLva, A. Adams. WM. testd turrito-subulatd, 
graciliori, solidd, fulvd, anfractibus planis, transversim sulcatis, 
sulcis profundis, distantibus ; aperturd oblongd, intus fused. 
This elegantly-formed shell is more slender than M. striata, and 
of a different colour; the transverse grooves are also much closer 
together, and their edges are rounded ; the twist of the columella is 
not so distinct, and the aperture is brown internally. Mus. Cuming. 
3. MonopryGMA GRANULATA, A. Adams. WM. testd ovato-tur- 
ritd, albd, solidd, anfractibus planiusculis, gradatis, longitudi- 
