10
SOLENID.E.
Ceratisolen legu'men "^^ Linne.
Solen legumen, Linn, S. N. p. 1114.
Ceratisolen kgumen, F. & H. i.
p. 256, pi. xiii. f. 2 (as Solen legitmen), and (animal) pi. I. f. 4.
Body compressed, j-ellowish-whito : mantle suffused with
red : edges of the open part fringed in front, but not at the
sides : tubes rather long, for the most part separate and
diverging, of a reddish hue ; orifices cirrous : foot reddishpurple ; when contracted it is oblong and truncated, and when
extended the extremity becomes club-shaped.
Shell pod-shaped, smaller at the anterior than at the
posterior extremity, semitransparent, glossy and partially iridescent : sculpture, numerous and fine but irregular strioe in
the line of growth, and a few slight and minute longitudinal
striae in the middle, which radiate from the beaks to the
front : colour pale yellowish- white : epidermis like oil-skin,
yellowish-green or sometimes light orange, puckered by the
radiating striae : margins nearly straight in front and behind,
curved obliquely upwards at the anterior end, and rounded at
the other end ; the dorsal compartment or area appears to be
separated from the ventral part in consequence of the epidermis being thinner and of a paler hue : healcs blunt, inclining a little to the anterior side, which they approach within
about two-fifths of the whole distance : ligament long, narrow
at first, and expanding gradually outwards, dark horncolour
or black : hinge-line nearly straight : hinge-plate thick, and
short, strengthened in each valve by a slightly curved rib to
support the ligament, by a long angular rib on the anterior
side, and by a callous and short rib running nearly at a right
angle with the beak : teeth, in the right valve an erect and
wedge-like cardinal, and in the left two similar cardinals,
which resemble a pair of nippers ; each valve has a lateral at
no great distance from the cardinal teeth, of an irregular shape
and bent towards each other, that in the right valve being
sometimes double : inside chalky- white, but nacreous in some
parts and occasionally exhibiting minute pearls ; margin
rather sharp : pallial scar indistinct ; the fold is mthdrawn
far into the interior: muscidar scars irregular; the anterior
elongated and extending to the central rib, the posterior trapezoidal.
L. 0-9. B. 4.
* A bean-pod.
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