The present species is from Bahia Blanca. The specimens, of which there
are two, are also in bad condition like the last, and probably not
full-sized.
FORM.—Body deep, with the ventral line swelling rather more outwards
than the dorsal. Greatest depth a little exceeding one-fourth of the
entire length. Very much compressed: abdomen carinated, and very
sharply serrated, the serratures sharper than in the common sprat. A
few minute teeth at the extremity of the lower jaw, and also on each
side of the intermaxillary, near its junction with the maxillary;
the lower half of this last finely serrated. Pieces of the
gill-cover much as in the Sprat; the subopercle rounded at bottom,
the opercle with a shallow notch near the upper angle.
The dorsal commences exactly in the middle of the entire length,
excluding caudal. The ventrals are as nearly as possible directly
beneath its first ray: these fins are very small, and shorter than
in the sprat.
D. 18; A. 23; C. 19, &c.; P. 16; V. 7.
Length 4 inches 2 lines.
COLOURS.—“Back blue; belly silvery.”—D.
The second specimen is similar, only smaller. Both were taken in the
month of September.