252 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
A. papillatus. By way of addition to Simroth’s description it may be 
mentioned that the colour of the back is yellowish-olive without spots ; 
the sole being of a light-yellowish colour, and that fine granules cover 
the whole of the back, while in each lateral area there are from one to 
three larger papille of the same colour. The median dorsal groove 
extends to the head. The mantle area is darker, mostly triangular, 
with the respiratory orifice nearly central. There is no area for the 
renal orifice, which is situated in the anterior left angle. The size of 
this species varies according to the locality. From the North Island 
I have seen only small specimens, but on the South Island large 
specimens occur. 
The dimensions of a large spirit specimen are :— 
1. Length over back from head to tip of tail, 60 mm. 
. Length of sole, 55 mm. 
. Width of back, 23 mm. 
. Breadth of sole, 10 mm. 
. Breadth of groove between sole and back, 4 mm. 
. Distance of anus from right tentacle, 10 mm. 
. Distance of anus from pulmonary orifice, 8 mm. 
Distance of pulmonary orifice from head, 15 mm. 
CONTI O Or B® Oo bo 
The reproductive organs (Figs. X, XI) agree with Dr. Simroth’s 
description and figure of A. verrucosus. I dissected five specimens, 
and these organs were alike in all. The interior wall of the penis 
is densely beset with conical papille. 
A a 
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Athoracophorus papillatus (Hutton). 
X. Genitalia: nat. size. XI. Anterior portion: magnified. 
[For lettering, see ante, p. 250.] 
_The digestive system is normal, the crop very large, without 
diverticulum, the anterior loop of the intestine extending as far as the 
cesophagus. | 
Simroth concluded from the contents of the crop that these animals 
fed on ferns.’ In a short note? I expressed doubts as to the correct- 
ness of this suggestion. I have had specimens of Athoracophorus in 
eran i se ee 
‘te ope 8G: * Journ. de Conch., vol. xl, p. 255. 

