56 
ACTINOPTERYGII. 
more than half as deep as the trunk at its point of origin and 
comprising about 16 rays; anal fin opposed to the hinder half of 
the dorsal, the longer rays when adpressed reaching to the base of 
the caudal. Scales smooth, except those of the middle of the flank, 
which are almost as broad as deep and crimped towards their 
serrated posterior border ; dorsal ridge-scales sharply pointed. 
Form, fy Log . Keuper: Coburg and Thuringia. 
P. 7399. Slab of sandstone with three imperfect individuals, variously 
crushed, in counterpart; Coburg. One specimen is shown 
of the natural size in PI, II. fig. 3. The differences in 
the curvature of the dorsal margin are conspicuous and 
doubtless due entirely to accidental distortion. Some of 
the head and opercular bones are shown, ornamented 
with sparse tuberculations ; and part of the upper jaw of 
one individual exhibits a few stout conical teeth, which 
were not improbably arranged upon the vomer, while 
traces of spaced, slender, styliform teeth occur in the 
opposing lower jaw. Some of the fin-rays are well 
displayed, exhibiting the unjointed base and the very close 
articulations beyond. Purchased , 1884. 
P. 3623. Obscure remains of small specimen ; Coburg. 
Enniskillen Coll. 
Semionotus kapfH, Fraas. 
1861. Semionotus kapffii, 0. Fraas, Wiirtt. Jahresh. vol. xvii. pp. 91, 95, 
pi. i. figs. 1-3. 
Type. Imperfect fishes ; Stuttgart Museum. 
A small species, about two and a half times as long as its maximum 
depth, attaining a length of about 0*1. Trunk deeply fusiform, the 
depth of the caudal pedicle not more than one-third as great as the 
maximum depths £>f the abdominal region. v IIead with opercular 
apparatus occupying nearly one-quarter of the total length; snout 
acutely pointed. Pelvic fins arising much nearer to the In&l'thaii ,C V 
to the pectoral fins; median fins as in the type species. Scales 
smooth and not serrated, those of the middle of the flank much 
deeper than broad : dorsal ridge-scales produced into slender points. 
Form. # Log. Middle Keuper: Wiirtemberg. 
38654-58. Ten small slabs of sandstone with remains of several 
individuals ; Haslach, near Stuttgart. Purchased , 1864. 
P. 1545. Imperfect specimen, wanting the caudal extremity; 
Haslach. Egerton Coll. 
