FJSCICULI MALATENSES 
213 
further informs me that the shells which he recorded from Kelantan as 
C. filicostata^ Stol./ are really very close to this variety, and that he was wrong 
in referring them to C. filkostata^ having been misled by wrongly named shells. 
ATOPOS, Simr. 
21. Atopos maximus, sp. nov. 
• (PL XI, Figs. 5, 6 ; PL XIII, Figs. 18-23) 
Colour of the notum yellowish with slatey-blue mottling, and an irregular 
yellowish-brown band laterally, granulated, and minutely spotted with black, 
notum extends over the head in a hood-like manner ; head white, facial region 
blue. Perinotum white ; foot-sole (in alcohol) drab colour ; keel distinct 
but not prominent. 
Length of notum (in alcohol), 1 30 mm. ; breadth, 24 mm. ; height, 24 mm. 
Breadth of foot-sole, 12 mm. Female generative orifice about 20 mm. from 
the male generative orifice. 
Bukit Besar, Nawngchik. 2,500 feet. 
This is the largest and finest example of the genus I have seen, and my 
only regret is that more specimens were not met with. In life the animal is a 
slatey blue with a bright salmon-pink foot-sole. In all probability it is refer- 
able to the sub-genus Padangia^ Babor. 
The Alimentary Canal (PI. XIII, figs. 18-20). 
The buccal cavity is large and may conveniently be divided into an 
anterior portion in front of the opening of the oesophagus, and a posterior 
portion behind the oesophageal opening. At the extreme posterior end there 
is a short stout muscle. The oesophagus passes from the dorsal side of the 
buccal cavity to the left, then making a short bend beneath the posterior 
portion of that organ it passes on the left side as a narrow tube into the 
substance of the ‘ liver ’ or mid-gut gland. At the point where the oesophagus 
opens into the cavity of the gland two other wide short ducts also open. 
Internally, the mid-gut gland is seen to be an irregular shaped cavity with a 
series of fine canals and irregular spaces, radiating from the main chamber. 
These are, perhaps, best seen in a series of transverse sections (PI. XIII, Figs. 
19, 20). The representation in Fig. 18 is purely diagrammatic. In this 
specimen the main chamber was perfectly empty, but amongst the contents of 
a smaller example I had no difficulty in identifying hyphae and spores of fungi, 
other vegetable matter, and particles of animal matter. 
I. Journ. Malac. ix, p. 6i (1902). 
