FixLAY.—Molluscan Fauna of Target Gully. 503 
T. fusiformis (Hutt.). Since, however, I have shown (2b) that this name 
is preoccupied, the alternative term T. oamarutica (Sut.) should used 
to cover all these shells. I have a strong — that 5. huttoni Sut. 
will also prove inseparable from T. oamarutica (Sut. but, not having 
seen the holotype, I cannot yet express a definite opinion. In the present 
list all these forms are included under T. oamarutica (S 
(8d, p. 126) have referred the subsp. transenna also to Bathytoma, and it 
may he left there for the present, though not really related to that genus. 
It seems to grade easily into B. antecostata Sut. at Target Gully, and it 
is doubtful whether the latter species should be retained. Suter’s records 
of B. albula (Hutt.) from m Oamaru localities are bed: on these Көш; the 
Recent species does ies occur in the Awamoan. Of the two секту: 
. huttoni Finlay (26).* 
Suter has described as distinct species Tritonidea compacta Sut. and 
Tritonidea elatior Sut., and these two are quite different from the only 
other New Zealand species, T. acuticingulata Sut. (also plentiful at Target 
Gully), but very similar to each other. Two years ago I found "errem 
height, its angle consequently varying greatly. (5.) The axial ribs vary 
from 9 to 16 per whorl, but are generally 11 or 12; they may be very 
sharp and prominent on the body-whorl, or low and flat, and they usually 
dada to uc times their width. (5.) The tubercles on the inner lip 
vary in number between 8 and none at all: they are quite irregularly 
spaced, and 2 be strong or weak. (6.) The protoconch is also variable, 
1 orls, sometimes set obliqely to the shell-axis, the nucleus 
— s inconspicuous, ese facts show how extremely incon- 
Another vari ms be th 
by Marshall ut газ (8с, p. 83) as Euthria subcallimorpha. This 
species is widely different from "Ruthria callimorpha Sut., which belongs 
to a totally unrelated genus; but if the figure is compared with that of 
Tritonidea elatior Sut. it will at once be seen that the shells are congeneric, 
* In this irata I have been anticipated. І notice that in the Revue Critique de 
irme (rece since the reading of the paper), vol. 20, No. 1, January, 1916. 
9, Cossmann € noted the preoccupation of this name, and has supplied a 
bed: the correct name is therefore Pseudotoma suteri (Cossmann). 
