
SUTER: NEW ZEALAND ATHORACOPHORID®. 255 
almost the same. The teeth of the radula (Figs. XVI, XVII), how- 
ever, are very different. The rhachidian tooth is very slender, with 
a small irregularly-shaped cusp, bearing a single blunt denticle 
usually on the left side, whilst the lateral teeth have a long and stout 
inner denticle and three, smaller, outer ones. 
I have much pleasure in associating with this species the name of 
its discoverer, Dr. Arthur Dendy, Professor of Biology in the Canter- 
bury College, University of New Zealand. 
Type in my collection. 
Hab.—Springburn, Mt. Somers; South Island (Dr. Dendy). 
Sect. III. xonopHora, Hutton. 
Hutton, Trans. New Zealand Inst., vol. xi (1879), p. 332. 
Like Janella, but the eye-peduncles short and conical (Hutton). 
Back of body smooth, or faintly granulose. In spirit specimens the 
lateral grooves on the foot are present, but not very conspicuous, and 
there is no thread-like lne between groove and sole. Mantle-area 
distinct, triangular, sometimes quadrangular. The median dorsal 
groove not always extending to the head. Renal opening a short 
distance in front of the mantle-area. Anus below the pulmonary 
orifice, near the foot margin. 
7. ATHORACOPHORUS MARMOREUS (Hutton). 
_ Konophora marmorea, Hutton: Trans. New Zealand Inst., vol. xi 
(1879), p. 882; vol. xiv, p. 158, pl. v, figs. 1-9. 
A full description of this species and its anatomy has been given by 
Captain Hutton. The rhachidian tooth of the radula is very distinct, 
somewhat approaching that of A. papillatus in the emarginate anterior 
end, but there is no central denticle. The situation of the renal 
opening in front of the mantle-area is not met with in any other species, 
and is correctly reproduced in the figure given by Captain Hutton.’ 
This species attains a rather large size. The dorsal grooves in spirit 
Specimens are sometimes very indistinct, and the back quite smooth. 
The dimensions of a rather small specimen are :— 
. Length over back from head to tip of tail, 55 mm. 
. Length of sole, 45 mm. 
. Width of back, 21 mm. 
. Breadth of sole, 8 mm. 
. Breadth of groove between sole and back, 3 mm. 
. Distance of anus from right tentacle, 8 mm. 
. Distance of anus from pulmonary orifice, 9mm. 
. Distance of anus from foot margin, 2°5 mm. 
. Distance of pulmonary orifice from head, 16 mm. 
The genital orifice is close behind the right tentacle. 
omonnIrnoar We 
i ee ree 
1 t.c., pl. v, fig. le (mucous pore). 
