LITTORINID&. 79 
L. cerulescens, Zamark; Anim. Sans Vert., ix., p. 2173 
Veen aeemencnsis Ouoy, ttm i, Pp. AGG, pl 33, f. SEL; Reeve, 
Conch. Ic., f- 94. Ovato-conical ; spire acute; body whorl lightly 
spirally striated, sub-carinated in large specimens ; columella flattened ; 
bluish-white, with a broad spiral band of blackish-blue on the body 
whorl ; interior violet with a white band round the mouth. 
Length, *45; breadth, -26; angle of spire, 43°. 
Auckland to the Bluff, but smaller in the South. Chatham Islands. 
Australia. Tasmania. 
L. luctuosa, Reeve, Conch. Ic., f 65. Shell accuminately ovate, 
imperforated ; whorls slantingly convex; longitudinally plicately striated, 
spirally grooved towards the lower part ; livid brown; aperture rather 
small, chestnut ; columella purplish (Reeve.) 
New Zealand. (Cuming.) 
L. novee zealandieze, Reeve, Conch. Lc., f- 74. Shell some- 
what globosely turbinated; spire rather short, very sharp; whorls 
rounded, spirally irregularly linearly grooved ; opaque white, obscurely 
very faintly red-flamed ; aperture nearly rounded ; chestnut-brown in the 
interior ; columella very broadly excavated, livid chestnut (Reeve.) 
New Zealand. (Cuming.) 
Genus, RISHLLA—Gray. 
Eyes situated on the tentacles ; operculum ovate, sub-spiral. Shell 
trochiform, with a flat or concave base ; axis imperforate ; whorls flat- 
tened, the last angulated, often acutely keeled; aperture depressed, 
oblique, rhombic, dark or variegated internally ; outer lip acute, simple. 
R. melanostoma, Gm; Adams Gen. Moll., pl. 23, f. 5a, 0; 
Chenu, f. 2127 ; R. kielmanseggt, Frauenfeld, Voy. der Novara, Moll., f. i. 
Shell conical, bluish-brown; whorls plicato-nodulose, rugose, marked 
with numerous oblique points; body whorl acutely angled; base 
flattish, spirally grooved ; throat yellowish-white. 
Length, 53 ; breadth, ‘64. 
Auckland. 
For the difference between the male and female of this species, see 
the Rev. J. Tenison-Woods, P.L.S. of N.S. Wales, i, p. 242. 
Genus, FOSSARINA—Adams and Angas. 
Shell turbinated, depressed, broadly unbilicated ; whorls spirally 
ribbed ; aperture circular, large, not pearly within; lip arcuate, simple ; 
operculum horny, sub-spiral. 
F. varius, Hutton, CALM, p. 35 (Adeorbis.) Spirally grooved, 
smooth ; brown, irregularly varied with darker and white; interior 
purple, varied with white. 
Length, ‘17 ; breadth, -3. 
Stewart Island to Auckland. Chatham Islands 
