FISHES. 
327 
with small teeth, intermaxillary bones forming the upper jaw ; 
tongue and palate smooth; branchial membrane having nine or 
ten rays. 
Genus 15.—A UL O P U S. — Cuvier. 
Generic Character. —Jaws widely cleft; upper margin formed 
of the intermaxillary bones •, both jaws and palate provided 
with densely set fillets of teeth; maxillaries toothless; ventral 
fins placed under the pectorals, having their external rays fur¬ 
cated and thickened ; branchial membranes with twelve rays ; 
scales ciliated. 
Genus 16.—GASTEROPELECUS.— Bloch. 
Generic Character. —Mouth bent upwards; upper jaw with 
conical teeth, under jaw having edged and dentated teeth; belly 
compressed, and projecting; ventral fins small, placed far back; 
first dorsal fin over the anal one. 
Genus 17. — STERNOPTIX.— Hermann. 
Generic Character .—Mouth directed upwards ; body com¬ 
pressed, vertically produced, and destitute of scales ; abdomen 
carinated and bent up in front; without ventral fins, but a plait¬ 
ed membrane in their stead, under the pectoral fins, close to the 
ridge; dorsal fins placed in the middle of the back, and small, 
having a strong spine in front. 
TRIBE II.-CLUPEvE. 
Genus 18.—CLUPEA. — Cuvier. 
Generic Character. —Intermaxillary bones arched before, and 
narrow, separated into many pieces, and longitudinally divided ; 
mouth partly provided with teeth, some species are entirely 
divested of them ; venter compressed, having a serrated, cari¬ 
nated ridge, with one dorsal fin above the ventral ones. 
Genus 19—MEGALOPS.— Lacepede. 
Generic Character. —Head with very large eyes ; branchial 
membrane with 24 rays, sometimes more; last ray of the dor¬ 
sal fin long and filamentary. 
2 D 2 
