PLATE 22, 23. 
ANOMITJE. LIMESTONE. 
p. 22. — FIG. 1, 2, 3. 
CONCMYLIOLITHUS Anomites (productus) valva 
altera longltudlnaliter striata, gibbosa producta sub- 
cylindrica alteram amplexante. S. p. 
A fossil shell. Original an Anomia. Imperforate. Hinge 
straight, extended. The larger valve gibbous, lengthened 
out in a cylindric form, and longitudinally striated ; the 
striae close, equal, and towards the margin dichotomous; 
the margin itself somewhat sinuous and irregular. In many 
specimens the upper part, particularly near the beak and 
hinge, set with a few, distant tubercles ; the beak small 
and pointed. The other valve is very small, semicircidar, 
and concave, clasped or surrounded by the larger valve. 
It is longitudinally, and, sometimes, transversely striated. 
This curious Anomite is found in many parts of the 
county. Some of the largest and best specimens I have 
seen, I collected in a mine near Croom, about four miles 
south of Buxton. 
Its most striking characteristic Is the lengthened cylin- 
dric form of the convex valve — This is always filled with 
limestone, which entirely conceals from observation the 
