238 Records of the Indian Museum. [Vor Sens 
475, 482 (1913); Berry, Bull. Sur. Fish., XXXII, pp. 308-9, figs. 
20-22 (1914). 
M *+:4 ‘Investigator’, N. Andaman Island, littoral, Marine Survey 
of India—One @, one @. 
M *+28 ‘Investigator,’ E.S.E. of S. Moscos Island, Marine Survey of 
India—One 2°. 
M £2368:+ Andamans (¥. Wood-Mason)—One @, one 9. 
The above all agree in the shape of the pen and in having the 
greatest width of the fin at the posterior third of the body. The 
pen has a hollow midrib with broad marginal thickenings, and is 
covered by a transparent and very delicate horny plate with a 
broadly rounded anterior margin. The median mantle-margin in 
order to correspond with the shape of the pen is, therefore, very 
obtuse and evenly rounded. The funnel organ was examined in 
specimens M *45* and M *°8. It is A-shaped, with smaller, 
oblong, lateral pads. Order of arms 3; 4, 2, 1; protective 
membranes to all, especially developed on third pair; suckers in 
two rows. Specimens M **%* are in good condition, and their 
largest arm suckers have rings armed with nineteen or twenty 
teeth all round the ring, five or six on the distal margin being 
larger than the rest. The space between each tooth is about the 
width of the base of two teeth and this space is equal to the 
length of a tooth. The teeth are incurved and resemble short, 
broad claws. A distal sucker shows twenty teeth, eight of which 
are larger than the rest. The tentacle suckers are in four rows, 
those of the middle third of the club being much larger than the 
rest. The suckers of the inner rows here are larger than the 
marginal ones. The rings of the tentacular suckers also have teeth 
on the entire circumference, five, or sometimes mofe, claw-like 
teeth larger than the rest being placed on the distal margin. 
The space between each of these is about equal to the width 
of three teeth and corresponds with the length of each. The 
proximal suckers show less space between the teeth. Both 
specimens have a spoon-shaped expansion with small flat suckers 
at the tip of the club. The hectocotylized arm of specimen M **** 
has twenty rows of ordinary suckers followed by a few small 
suckers on long pedicels; these are succeeded by papillae sur- 
mounted by extremely minute suckers which persist either as 
complete suckers, or in rudimentary form, to the tip of the arm. 
The ventral papillae are smaller than those of the dorsal margin. 
Buccal membrane seven-angled and with suckers with toothed 
rings. As many as five suckers may be present on an angle. 
Colour pinkish-buff with large brownish-red chromatophores or 
small, almost black, ones. 
Ventral fin surface without chromatophores. Specimens M **\— 
are in bad condition and much contracted. Their characters seem 
to agree with the foregoing except that their colour is much darker, 
viz., ground colour gray, with very dark blotches covering much 
of the ventral as well as the dorsal surface. The ink sac is rup- 
tured in one of the specimens which may account for the dark 
ground colour. 


