476 MOLLUSCA SUB-KINGDOM VI 
Phos, Montf. Shell elongate, bucciniform, turriculate; spire sharp, elevated, 
whorls ornamented with prominent longitudinal costae, and less salient spiral threads 
and sulci, often varicose. Aperture oblong; outer 
margin lirate within. Columella excavated, 
plicate in front; canal short, slightly twisted. 
Tertiary and Recent. 
Eburna, Lam. (Dipsaccus, Klein), (Fig. 965). 
Resembling Nassa, but smooth, perforate, and with 
deeply incised sutures; 
outer margin sharp. Tertiary 
and Recent. 
Nassa, Martini (Fig. 
966). Ovate, inflated. Aper- 

Fic. 965. Fic. 966. ture with short, reverted 
Eburna caronis, Nassa clathrata, canal : inner lip callous, 
Brongt. sp. Eocene; Brocchi. Pliocene ; : 
Ronea, near Vicenza. Larniano, Tuscany. expanded : outer margin 
usually crenate internally. 
Sparse in Upper Cretaceous and Eocene, abundant in Miocene 
and Pliocene ; living species exceeding 200 in number, and dis- 
tributed in numerous sub-genera. 
Cyclonassa, Agassiz; Cyllene, Gray; Truncaria, Adams ; 
Buccinopsis, Deshayes. Tertiary and Recent. 
Chrysodomus, Swains. (Neptunea, Bolten). Elongate -ovoid, 
= : pero 2 ae anton : : . Hemifusus subcarinatus, 
inflated, sometimes sinistral, with rather short and sometimes yam sp. Eocene (Sables 
bent canal. Cretaceous to Recent. C. contrarius, Lam. Crag. meyer) Senlis, Seine et 
Stphonalia, Zemira, Metula, ~ 
Adams; Euthria, Gray; Hemifusus, Swainson (Fig. 
967). Tertiary and Recent. Mitraefusus, Genea, 
Bellardi. Neocene. 
Melongena, Schum. (Pyrula, Lam. p.p.; Myristica, 

Fic. 967. 






Fie. 969. 
Fig. 968. 
Tudicla misticula, Bast. sp. Mio- 
Melongena cornuta, Agassiz. Miocene ; Bordeaux. cene ; Grund, near Vienna. 
Swains.), (Fig. 968). Pyriform, inflated, with short spire. 30dy whorl large, 
