NEW LAND SHELLS — HEDLEY. 
153 
Dendrotrochus mentum, sp. nov. 
(PI. xxviii., figs. 12, 13). 
By colour, texture and general shape this species might be taken 
for a diminutive form of the well known D. helicinoides , Hombron 
and Jacquinot, of the Solomon Islands. The chief distinction 
between the two, lies in a thickened, curved ridge, analogous to 
that of certain species of Papuina , situated behind the aperture 
of D . mentum. This ridge is a constant feature in a fair series 
before me, supported by the difference in size, D . mentum being 
three quarters of that of D . helicinoides , and the difference of 
locality, sufficiently isolates the novelty to require a name for it. 
Major diameter 12, minor 10; height 9 mm. 
D . pyxis , Hinds, from the adjoining island of New Ireland, also 
is contracted and then inflated behind the aperture, though not 
so sharply so as D. mentum . In the species now recorded, the 
genus has its most western outlier. It was demonstrated in a 
previous article in this serial,* * * § that Dendrotrochus was related 
not to Papuina but to Trochomorpha . The group seems worthy 
of generic recognition. 
Loc. — Ralum, New Britain ; presented by Madame E. E. 
Kolbe. 
ToRNATELLINA WAKEFIELDS, Cox . 
(PI. xxviii., fig. 14). 
Acliatinella wakefielda \ Cox, Mon. Australian Land Shells, 1868, 
p. 78. 
Specimens of this unfigured species having recently been 
received by the Trustees from Bryon Bay, New South Wales, 
the opportunity is taken to illustrate it. 
In reviewing the above quoted work, G. W. Tryon pointed out 
that the species could not be included in Achatinella .f Crosse 
followed by suggesting that it would be more appropriately placed 
in Tornatellina, J an opinion which was echoed by Brazier. § 
Petterd reported the species as occurring in rotten wood near 
Lismore and on the Clarence River, New South Wales. || H. Tryon 
found it on orange trees in the vicinity of Brisbane, Queensland. U 
* Hedley — Rec. Austr. Mus., ii., 1895, p. 90. 
f G. W. Tryon — Am. Journ. Conch., iv., 1868, p. 285. 
J Crosse— Journ. de Conch., xvii., 1869, p. 176. 
§ Brazier — Proc. Zool. Soc., 1872, p. 807. 
|| Petterd — Journ. de Conch., xxv., 1877, p. 361. 
IT H. Tryon — Report on Insect and Fungus Pests, No. 1, 1889, p. 148. 
