= 
Foffil Anomie found in Derbyftire. 47 
ways found fixed to ftones, corals, &c. by a ftrong tendinous liga- 
ture, that paffes through their perforated beaks, In this fpecies it is 
evident, from the apparent fize of the aperture, that a large portion 
of the included animal was left bare, which, inftead of a ligament, 
might have been furnifhed with a ftrong adhefive power, fimilar to 
that enabling limpets, and fome other univalves, to ftick to rocks, &c. 
In Tab. 4. I have given a fketch of the fhell. thus fixed: it will 
help to elucidate the idea I have formed relative to its recent ftate ; . 
and, as the pofition of the figure differs, may affift the explanation 
of the other figures. 
Tas. IV. 
The ens Keel in ay table (5*) has oe already noticed: the 
fmall figures are, explanatory of a few remarks I beg leave to offer 
on the Ainge and perforation of the Fofil Anomia, together with a 
ketch of an arrangement which will include all the different f{pecies 
yet. collected in Derbyfhire. « : ig mt 
‘Pgs the e Hinge Mathes 
: wt rie rts! th vd: ahs 
It has been fuppofed that the 2 ai ve ie paibole hinge i is ceat eh. 
line, like that of fome eC, were in a fin imilar. manner. mult- 
articulate, or furnifhed y tecth but perhaps this i is ‘not 
traneous foffil I ever of a fqaare-hinged ces 
mia: it retained its fh tle or no change, and the 
hinge was quite entire however, as well as in 
many lefs perfec petrifactic agile 1 u. le. fame kind I have 
occafionally met with, I could never dif ie leaf - appearance of 
a multarticulate connexion. indeed es ci I have been able 
to obferve it fhould feem, that the cardo in the ftraight-hinged foffil 
Anoma is the fame, in many refpects, as that of the recent fpecies, 
; namely, 
7 
. 
