A P P E N D I X .
T h e fo llo w in g A p p e n d ix c o n ta in s d e s c rip tio n s o f a few s p e c ie s , w h ic h w e re
o m itte d to b e n o tic e d in th e ir p ro p e r p la c e s ; a n d f u r th e r re m a r k s w ith re s p e c t to
so m e , w h ic h w ill b e fo u n d in th e b o d y o f th e w o rk .
F a m il y .— P E R C ID ^ .
1. A p h r i t i s u n d u l a t u s . Jen.
P l a t e X X IX . fig. I .
A . elongatus: laterihus supra pallide olivaceis, fasciis transversis abbreviatis,
lineisque longitudinaliter undantibus, nigris; lateribus infra argentéis : pinnis dorsalibus
et caudali punctatis; pinnis, reliquis, et linea laterali, albidis.
B. 6 ; D. 8—25; A. 1/22; C. 14, et 6 hrevioribus; P. 22 ; V. 1/5.
L o n g . unc. 3. lin. i.
Form .—Elongated; the depth about one-sixth of the entire length; the thickness two-thirds of the
depth. Head four-and-a-half times in the length. Profile falling very gradually at first, but
more rapidly in advance of the eyes, causing the snout to appear rather obtuse. Mouth small:
maxillary slender, hardly reaching to a vertical line from the anterior margin of the o rb it:
upper jaw slightly longer than the lower, and very protractile. T eeth very minute, forming a
narrow velutine b and: a patch on the chevron o f the vomer scarcely visible, but capable o f
being very distinctly fe lt; none apparent on the palatines. Eye one-fourth the length of the
head, and distant one diameter from the end of the sn o u t; the intcrocular space rather less
than the diameter. Snout slightly indented, or furrowed out in front o f the eyes. A series
o f impressions on the lower jaw, and along the limb of the preopercle, but much less obvious
than in the next species, and not distinctly porous. Preopercle with the ascending mai^in
vertical, the angle at bottom rounded; the limb broad and distinctly marked, with the
boundary line between it and the cheek slightly elevated into a ridge. T he opercle, with its
membrane, produced backwards in an angle, the subopercle being visible beneath. Tlic
branchial membrane six-rayed, and fastened to the isthmus underneath, the aperture commencing
beneath the ascending margin of the preopercle.
Lateral line commencing at the upper angle of the gill-opening, and following the curvature
of the back at one-fourth of the depth, and preserving this direction throughout its course, not
2