21 
(b) A nearly complete trunk, with pelvic, dorsal, anal, and caudal 
fins. 
(c) A more imperfeet trunk, with portions of the median fins, shown 
in PL III, Pig. 5. 
(d) Head and trunk, wanting the tail. 
(e) Nearly complete fish, wanting the pectoral, dorsal, and anal fins. 
General Form. — The trunk is comparatively deep in the abdominal 
region, and the dorsal contour more arched than is usual in Fictyopyge. The 
head, with the opercular ajiparatus, occupies about one-quarter of the total 
length of the fish ; and the snout seems to have been bluntly pointed. The 
dorsal and anal fins arc long, and the former is placed partly in advance of 
the latter. The upper lobe of the tail is conspicuously produced. 
Head and- Opercidar Apparatus . — None of the bony elements of the 
head and ojiercular apparatus can be distinguished, and only faint impressions 
of circumorbital bones exhibit the position and proportions of the eye. The 
mouth is large and deeply cleft, as usual, and in Nos. d and e appearances 
arc suggestive of small, stout, conical teeth, placed in close series in the 
upper jaw. Some irregular superficial strife are seen iu No. e. 
Appendicular Skeleton. — A gently arched, slender clavicle, with part 
of a more exj)anded supraclaviclc, is shown in PI. Ill, Pig. 5 ; and both of 
fliesc elements exhibit suj)crficial longitudinal stria tions. The pectoral fin, 
however, is not distinct in any specimen. The pelvic fins arc of moderate 
size, each consisting of about seven rays, and placed nearer to the anal than 
to the i^ectorals. The dorsal and anal fins are both elongate, and of about 
equal size, the latter commencing at a point nearly opposite the middle of the 
former. In the type-specimens distinct fulcra are observed upon the anal 
fin, and the number of rays is about thirty, generally shortening and more 
widely spaced posteriorly. The caudal fiu (No. e) is broad, powerful, and 
deeply forked. 
Squamation . — Though always indistinct, the scales appear to have been 
superficially ornamented rvitli a few short oblique ridges or furrows. Those 
upon the flank are at least as deep as broad, while those upon the ventral 
aspect are conspicuously lu’oader than deep ; and the scales upon the caudal 
pedicle arc not excessively elongated. Appearances in some specimens arc 
also suggestive, at first sight, of the presence of a scries of dorsal ridge-scales ; 
