- the autumn of 1894 a very skilled fossil collector, A. 
FLOoRIN, sent to the Palzeontological Department of the State 
Museum in Stockholm a few remarkable fossils, which he 
had found in the shale beds of Gotland. They consist of : 
two nearly complete shields (scuta) and of some fragments 
and scales of a Cyathaspidian fish, as could be seen without 
difficulty in consequence of their perfect state of preservation. 
a C b 
BS 
a. Outlines of the dorsal scutum, nat. size. 
b. Ditto of the ventral scutum, nat. size. 
c. Side view of the left cornu with the eye-notch: the scutum seen behind. 
The two complete shields have the common Cyathaspi- 
dian shape, somewhat oval or elliptical, truncated anteriorly 
and with the posterior end emarginated. Their external sur- 
face 1s of a peculiar silky lustre, glossy, as of enamel. One 
shield, no doubt the dorsal scutum, is composed of four diffe- 
rent and distinct parts, a rostral plate, a central disc, having 
on each side a narrow plate, the so called cornua. Through 
the direction of the ridges, which cover the surface, these 
cornua are easily distinguished as separate from the central 
