268 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
Affinities. —By the kindness of Mr. E. R. Sykes, I have been enabled 
to compare the animal of Donovania minima (Mont.). The similarity 
between the radula of this and of Pseudamycla proves to be more than 
a merely superficial one; and Pseudamycla in the characters of this 
organ may be said to occupy a position intermediate between Donovania 
and Pisania. 
PsEUDAMYCLA DERMESTOIDEA (Lam., as Buccinum). 
Whorls of the shell having fine spiral strize, not grooved; peristome 
uncoloured ; tessellated markings well defined. 
Hab.—Occurs at several stations in New South Wales, Victoria, and 
South Australia; and it is also recorded from Tasmania. 
Synonymy.—(Cf. ante, pp. 254-5.) 
PsrupamycLa mittostoma (Ten.-Wds., as Columbella). 
Whorls of the shell spirally grooved, the grooves pigmented ; 
peristome coloured ; markings not sharply defined. 
Hab.—This form appears to be typically Tasmanian; but it also 
extends to the opposite shore of Australia. 
Synonymy. 
1877. ‘* Columbella miltostoma, n.s.”?: J. KE. Tenison-Woods, Proc. 
Roy. Soc. Tasmania, 1876, pp. 134-5 [no fig. ]. 
1878. ‘* Columbella miltostoma, Tenison- Woods’’: J. E. Tenison- Woods, 
Proc. Roy. Soc. Tasmania, 1877, p. 32 [name only ]. 
1883; Mar. 26. ‘C. [ Columbe (4 miltostoma, Tenison- Woods [ = C. 
deere Lam. ]’’: W. Tryon, Man. Conch., vol. vy, 
p» 120,pl; xlviii, fig. ae [poor ; ; not figs. 87-92 ]. 
1892. Columbella miltostoma, Ten. - Wds. = “ Columbella (Mitrella) 
semiconvexa, Lamarck”: W. Kobelt, in Martini & Chemnitz, 
Jonch. Cab., Columbella, p. 83 [quotes Tryon ]}. 
1892. ‘* Columbella (Mitrella) unisulcata n.”: W. Kobelt, in Martini & 
Chemnitz, Conch. Cab., Columbella, pp. 119-20, pl. xvu, 
figs. 15-6. 
1901, Dec. 19. ‘* @. [ Columbella] saccaharata [sic], Reeve [incl. 
C. miltostoma, 'Ten-Wads. & C. unisulcata, Kob. |”: R. Tate & 
W. L. May, Proc. Linn. Soc. New South Wales, 1901, 
p. 366, pl. xxiv, fig. 19. 
This species is usually much smaller than P. dermesfocdea, the shell 
is also more depressed, and the sulcation at the base of the pillar is 
finer. The whorls exhibit none of the fine spiral striation of 
P. dermestoidea, but are sculptured with more or less well-defined, 
equidistant, spiral grooves. Of these grooves, the one immediately 
below the suture is generally more prominent than the others, and 
occasionally it alone can be distinguished. In fresh specimens the 
grooves appear as fine threads of colour. The markings of the shell 
are different to those of P. dermestoidea in character; and, except for 
the spiral lines, are generally but ill-defined. Though showing a 
tendency towards tessellation, the marking normally consists of 
comparatively large, but faint blotches; and these do not unite to 
