‘205 
Dentalium cheverti, Sharp and Pilsbry. 
Dentalium cheverti, nom. mut., Sharp and Pilsbry, Tryon, 
Man. Conch., 1897-8, vol. xvii., p. 9; Hedley, Records Austr. 
Mus., 1901, vol. iv., No. 3, p. 129, pl. xvii., fig. 34; Bossevain, 
Scaphopoda, Siboga Hxped., 1906, p/ 17. 
Dentalium septemcostatum, Brazier, Proc. Linn. Soc., 
N.S.W., 1877, vol. ii., p. 57 (nom D. septemcostatum, Abich, 
1859). Type locality—Evan Bay, Cape York, North Australia, 
6 fathoms, sand (Chevert Exped.). 
Dredged in 22 fathoms in Gulf St. Vincent, 2 in good 
condition, 13 mm. long. 
Dentalium katowense, Brazier. 
Dentalium katowense, Brazier, Proc. Linn. Soc., N.S.W., 
1877, vol. ii., p. 56. Type locality—Katow, New Guinea, 8 
fathoms, sandy mud and coral; Pilsbry and Sharp, Tryon, 
Man. Conch., 1897-8, vol. xvii., p. 9; Hedley, Records Austr. 
Mus., 1901, vol. iv., No. 3, p. 129, pl. xvii., fig. 33; Bossevain, 
Scaphopoda, Siboga Exped., 1906, p. 16. 
Dredged in 15 to 22 fathoms in Gulf St. Vincent, 4 in 
good condition. The longest is 225 mm. Mr. Hedley writes: 
“This answers fairly to my specimens from the Gulf of Car- 
pentaria.”’ 
Brazier in the definition of his species writes, “interstices 
with minute lengthened striz.” If the specimens of D. 
intercalatum, Gld., from South Australia are carefully exam- 
ined under a lens when their larger end is toward the light 
they will show their transverse accremental striz very plainly, 
but when they lie with their side toward the light these are 
quite indistinct, and fine axial striz are visible. The rela- 
tive validity of these axial and concentric striz varies in 
different examples. They are to be seen in my specimens 
labelled D. katowense. 
Dentalium thetidis, Hedley. 
Dentalium thetidis, Hedley, Memoirs Austr. Mus., 1903, vol. 
iv., p. 827, fig. 61. Type locality—“‘In 63-75 fathoms off Port 
Kembla; also in 41-50 fathoms off Cape Three Points.’’ 
Dredged in 6 fathoms off Black Point, Gulf St. Vincent, 
1 fresh; in 15 to 22 fathoms Gulf St. Vincent, 2 good; in 
130 fathoms off Cape Jaffa, 2 fresh, 7 dead; in 300 fathoms 
off Cape Jaffa, 3 dead. Identified by cotypes from Mr. Hed- 
ley. In the two fresh specimens from 130 fathoms, close to 
the posterior end, in the furrow on each side next to the 
central furrow on the convex surface, are four minute holes 
in an axial line. ‘These are probably only accidental. They 
may be the boreholes of predacious molluscs. Still it is a 
curious coincidence to find them in two specimens, in iden- 
tically the same position ; and the coincidence is more striking 
