t^^l

TIAHA. 15
the body-«horl encircled by an infra-sutural ridge forming a
distinct shoulder and weakly spirally lirate throughout below the
ridge • sutures impressed ; peristome simple ; columella arched, a
callus joining it with the lip above ; aperture inversely auriform.
Alt. 33-25, diam. maj. 12-25 mm.
Aperture, alt. 10-5, diam. 5-5 mm.
Hah, Andaman Islands.
The shoulder formed by the infra-sutural ridge presents a somewhat
striking appearance and recalls some of the Western Pacific
Island forms in vvhich this character occurs ; the other characters,
however, when taken collectively or singly, easily separate it from
any of the species described from those regions.
27. Tiara (Eadina) multistriata (Preston).
Tiara (Radina) multistriata (Preston), Rec. Ind. Mus. ii, p. 196,
pi. 15, fig. 24.
Shell decollate, subulate, dark olive-brown ; remaining whorls 4,
rather flat, sculptured throughout with fine transverse striae and
coarser spiral strioe ; sutures deep and incised ; columella arched ;
peristome acute ; aperture ovate; interior bluish grey.
Alt. 26, diam. maj. 10 mm.
Apei-ture, alt. 9'5, diam. 4 mm.
Bab. Andaman Islands.
Subgenus STEIATELLA.
Stn'aietta, Brot, Conch.-Cab. 1875, pp. 7, 193.
TYPES, Melania corporosa, Gould, Tahiti; and Melania tuberculata,
Miiller, N. Africa, S. & E. Asia, Malaysia, N. Australia.
Range. Add to the above S. & E. Africa and Tropical Islands of
the Indian and Pacific Oceans.
Original description :—Testa turrita, mediocris, longitudinaliter
plus minusve striata, ssepe transverse plicata; apertura basi rotundata,
columella modice torta.
Testa longitudinaliter inciso-striata, sutura canaliculata.
(Typ. M. corporosa.)
Testa longitudinaliter elevato-lirata; rubropunctata vel flamniulata.
(I'yp. M. iuberculata.)
28. Tiara (Striatella) tuberculata {MUlkr).
Kerita tuberculata, Jliiller, Hist. Verm. 1774 (as Nerita), Coromandel;
H. & T., C. I. pi. 74, flgs. 1-4 ; Nevill, Hand List, pt. 2,
p. 239.
Shell elongate, very acuminate or subulate, pale, thin, sculptured
with raised spiral striae and undulating grooves, blotched with
blood-red, these red markings often forming zigzag bands. Whorls
8 or 9, ornamented with longitudinal tubercular ridges, each bearing