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sity ; aperture transverse, rounded, greatly produced and elongated, 
ending anteriorly in a slightly canaliculated pomt ; inner lip smooth 
and callous, not emarginate or truncated, anteriorly ; outer lip thin, 
simple, not marginated or reflected. 
1. Ternostoma pvoxtitum, A. Adams. T. testa alba, glabra, 
polita, semipellucida, longitudinaliter tenuissime striata, lineis 
transversis tenuibus decussata. 
Hab. Sancta Elena, 8 fathoms (H. C.). Mus. Cum. 
Although but a single species has yet been found, I have made a 
genus of this singular shell, because I was unable fairly to refer it to 
any known form. It has resemblances to Cyclope, Camtia and Ro- 
tella, but agrees with neither. 
4. Psrupo.iva, Swainson. 
Animal 2 
Operculum horny, ovate, with imbricated lateral elements. 
Shell ovate, thick, ventricose ; spire short, acute ; suture slightly 
channelled ; last whorl with a spiral groove, ending in a notch at the 
fore-part of the outer lip; columella thickened, with a callosity at 
the hind part. 
Gastridia, Sow.—Pseudodactylus, Hermann.—Eburna, sp. Sow. 
-—Struthiolaria, sp. Gray.—Monoceros, sp. Lea.—Fusus, sp. Lea. 
1. PskupDOLIVA PLUMBEA, Chemn. sp. 
Buccinum plumbeum, Chemn. 188. f. 1806, 1807. 
2. PsrupoLiva zTuiops, Reeve, sp. 
Buccinum ethiops, Reeve, Conch. Iconica, Mon. Buccinum. 
3. PsEUDOLIVA SEPIMENTA, Rang, sp. 
Buccinum sepimentum, Rang, Mag. de Zool. 1832, pl. 18 ; Kiener, 
Mon. pl. 18. f. 66. 
4. Psrupouiva striatuua, A. Adams. P. ¢esta ovata, solida, 
spira brevi, anfractibus rotundatis, longitudinaliter subplicata, 
transversim creberrime striata, striis confertis ; epidermide Susco 
tecta; apertura ovali; labio levi subplanulato ; labro intus levi, 
antice subemarginato. 
Hab. Africa. (Mus. Cuming.) 
5. PsEUDOLIVA .zZEBRINA, A. Adams. P. testa ovata, solida, 
spira brevi, acuta, albida, lineis longitudinalibus rufo-fuscis or- 
nata ; anfractu ultimo superne nodoso-plicato, transversim sul- 
eato ; apertura ovali; labio levi incurvato ; labro intus sulcato. 
Hab. Africa. (Mus. Cuming.) 
6. PsrupOLIvA AUSTRALIS, Sowerby. 
Eburna australis, Sow. (Mus. Cuming.) 
7. Psrupoxiva (STRUTHIOLARIA) MONOCEROS, Gray (mihi 
ignota). 
tte 
