KELLIA. 89 
We digress, and for the second time earnestly recommend 
naturalists to observe, in sea-water at least, the external 
organs and habitudes of the minute animals of all genera, 
bivalve and gasteropodan, for little more can be done from 
their minuteness, and publish notices of them in our natural- 
history records;—not mere names and habitats, as is too often 
the case, but their peculiarities. Opportunities of meeting 
with rare live animals do not often occur; we speak from 
forty years’ experience ; none ought to be passed by, and all 
should be examined without delay; the interval of even an 
hour often paralyses the animal functions: let our motto be 
“carpe diem; many rare creatures, from its neglect, have 
been lost to science. The almost total dismemberment of 
the Kelhade is the moral of the above; we wish to impress 
the necessity of a more careful examination of the minuter 
Mollusca. 
We ought to state that the true Kelliade have the hinge 
furnished with variable minute irregular primary teeth under 
the beaks, with flattish triangular laterals on each side in each 
valve, those of the right one being obscurely double, and a 
long, strong, very oblique, white internal cartilage, which is 
often ruptured into two parts, one of which les in each 
cartilage-pit. 
>] 
KELLIA, Turton. 
K. suBporBIcULARIS, Montagu. 
K. suborbicularis, Brit. Moll. ii. p. 87, pl. 18. f. 9 and 9a,96; and 
(animal) pl. O. f. 4 and 4 a. 
Animal suborbicular, pure white ; the mantle may be termed 
partially closed, though there are three openings in it; the 
ventral one is considerable, and serves for the admission of 
water to the branchiz, and as an issue for a small hyaline 
hnguiform byssal foot, which usually lies centrally exserted, 
to be prepared to act anteally and posteally ; it is also at the 
anterior or shorter end, to which the beaks curve, produced 
into a conical entire tube, not divided within, almost as long 
as the shell, plam at the orifice; this anomalous production is, 
