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whorls rather convex, transversely striated. Aperture oblong-ovate, 
with a distinct notch in front; columella abruptly truncate, with a 
single oblique spiral fold anteriorly; outer lip simple, the margin 
somewhat reflexed and thickened internally. 
Genus Erinna, H. and A. Adams. 
Shell semiglobose, thin, horny, olivaceous, longitudinally finely 
striated ; spire very short, obtuse, apex rather eroded, last whorl 
ventricose, aperture large semiovate ; inner lip posteriorly ascending 
on the body-whorl ; columella straight excavated and with a curved 
elevated ridge outside the excavation, continued in front into the 
outer lip, which is thin and simple. 
Type. Erinna Newcomsi, H. and A. Adams. 
E. testa olivacea tenui longitudinaliter oblique striata, spira brevis- 
sima, obtusa, apice erosula, anfractu ultimo ventricoso ; apertura 
semiovata ; columella recta excavata, labro tenui. 
Hab. Heneta River, Kami, Sandwich Islands. (Dr. Newcomb.) 
This shell by some would be referred to Neritina, by others to 
Iimnea, and possibly by a few to the genus Ofina; it appears, 
however, to be distinct in character from all these. 
The nineteen other New Species which I shall proceed to describe 
are referable to established Genera, and may be characterized as 
follows :— 
1. Carron Maceiuuivrayi, A. Adams. 
C. testa oblongo-ovali, elevatiuscula nigra areis centralibus fasciis 
duabus pallidis longitudinaliter picta; valvis obtusis (sub lente) 
minutissime granulatis, liris concentricis undulatis rugoso-granatis 
ornatis, valva terminali antice umbonata, umbonibus sublevibus 
via productis ; ligamento spinis calcareis nigris curvatis obtusius- 
culis obsito. 
Hab. Fejee Islands, on the reefs. (J. Macgillivray.) 
This is a well-marked and handsome species, rather more than two 
inches in length; the surface of the valves is finely granulated and 
ornamented, besides, with subgranulated, wavy, concentric, elevated 
lines; the central areas have a pale greenish band on each side of the 
umbo. 
2. Murex pitectus, A. Adams. 
M. testa ovato-fusiformi trivaricosa, carneola, rufescenti sparsim 
variegata, spira brevi, acuminata, anfractibus septem, varicibus 
foliaceo-fimbriatis ac laciniatis, interstitiis plicato-nodosis, trans- 
versim liratis liris rufo articulatis; apertura ovali, canali vir 
clauso, valde recurvato, labro margine crenato. 
Hab. -—-? (Mus. Cuming.) 
