

135 
or replaced by flames extending axially in a zigzag way which 
may be composed of narrow lines, and so approach C. dictua. 
The blotches may tend to coalesce spirally, and so approximate 
C. vineta, Tate. 
This form was sent to me some time ago from North 
Tasmania under the name of CU. achatina, Sowerby, the type 
locality of which is Swan River. (Coluwmbella achatina, 
nobis, Sowerby, Thes. Conch., vol. i., 1847, p. 132, sp. 61, 
pl. xxxix., fig. 126.) The figure is 18°5 mm., and appears to 
be drawn of the natural size. An exactly similar shell I 
have from Rottnest Island, off Swan River. Reeve’s figure, 
No. 54, pl. xii., Conch. Icon., is, however, 23°5 mm. long, 
and no measurement is given; so if drawn of natural size 
this can scarcely be identical. 
Lecce Aa reege Ca fee OL, <a 
Columbella saccharata, Reeve, Conch. Icon., 1859, pl. xxix., 
fig. 187. Type locality—Van Diemen’s Land; Pace, Proc. Mal. 
Soc., London, 1892. vol. v., pp. 181 and 182. : 
Tryon, Man. Conch., 1883, vol. v., p. 125, makes it a 
synonym of CU. semiconvera, Lamarck, and is followed by 
Kobelt, Conch. Cab. (Ed. Kiister), 1897 (1892), Band iii., 
Abt. 1.D, pp. 81 and 82, No. 60. 
Tate and May, Proc. Linn. Soc., New South Wales, 
1901, vol. xxvi., part 3, p. 366, make it the specific name of 
4% miltostoma, Tenison-Woods, and CU. unisulcata, Kobelt, 
giving Dr. Milligan’s shells from Oyster Bay as the British 
Museum types; but Pace says these are not the types, but 
the Cuming Collection shells. Tate and May give a figure, 
op. cit., pl. xxiv., fig. 19, of C. miltostoma as their C. 
saccharaia. The description of C. saccharata does not apply, 
this has sulcations only over the base; in C. miltostoma they 
are as shown in Tate and May’s figure all over the body-whorl, 
and especially just below the suture. 
This shell is translucent and unicoloured, and may be 
typically pinkish; but it may be amber coloured, yellowish, 
or white. ~ 
Tt has been taken-on the beach at MacDonnell Bay; in 
12 fathoms off Porpoise Head, 2; in 16 fathoms off Tunk 
Head, 1 alive; in 17 fathoms Backstairs Passage, 9; in 20 
fathoms off Newland Head, 1 alive; in Gulf St. Vincent up 
to 22 fathoms, 60 alive-and dead; in 40 fathoms off Beach- 
port, 1 good, dead. 
The following variations may. be met with in shells with 
the same translucence, sculpture, and shape, and link it to 
