Tue ZooLocist—May, 1872. 3039 
assist in producing this effect; the visible arms (or legs) are eight 
in number, and are associated in two clusters or sections, four in 
each; the exterior leg on each side is nearly three times as broad 
as the others, and is beautifully decorated with zebra-like markings, 
chocolate-brown and white ; the second leg, still counting from the 
outside, is next in size, and like the first is decorated with zebra-like 
markings, yet much smaller and much less conspicuous in colour; 
the third on each side is still smaller and still less distinctly striped, 
and the central pair as the animal faced me are the smallest, nar- 
rowest and least conspicuously marked,—still on these there is an 
indication of similar markings. All these arms (or legs) are folded 
or convolute, each having a linear, longitudinal opening towards 
the cavity of the mouth or cibarian organs; the inner surface of 
these organs is furnished with small circular petiolate suckers, 
which appear to be arranged in four longitudinal series, but these 
were only visible when the creature moved its arms, which it con- 
stantly did, curling up the extremities: these arms are crowded 
together and held in a pendant position; their motion was in- 
cessant, and I rather (perhaps injudiciously) trust to books in 
mentioning four as the number of series in which the suckers are 
arranged. 
All naturalists are aware that in figures of the cuttle the animal 
is represented as furnished with two tentacular arms, the shaft of 
which is round and vermiform, and the extremity dilated and spathu- 
late, and having its under surface furnished with suckers: these 
very striking implements are represented as floating gracefully 
behind the animal as he is supposed to glide through the water, 
while the eight more rigid and pointed arms seem to be piercing the 
water and acting as pioneers to remove all obstacles out of his way. 
Jn the living animal there is no indication of such tentacular arms; 
they exist, but are entirely concealed; supposing them extended 
when the animal is swimming, and further, supposing them flaccid 
and capable of partaking of the movement of the body, they would 
follow it in a contrary direction to that represented, because all 
the cephalopods swim backwards. I cannot doubt that the eight 
arms (or legs) of the cuttle are homologous with the /oot of 
gasteropod mollusca, but it must be admitted that the nomenclature 
of these parts is at present vague and unsatisfactory; and it will 
require great pains on the part of common-sense writers to dissi- 
pate the confusion that now exists: common-sense writers will not 
