| Family | Scientific Name | Author | Year | Common Name |
| Pseudotriakidae | Pseudotriakis microdon | de Brito Capello | 1868 | False Cat Shark |
Pseudotriakis microdon
Unique Characters: Anal fin absent. Two dorsal fins; origin of first dorsal fin well ahead of pelvic-fin bases. First dorsal fin long, about the length of caudal fin, and formed as a low, rounded keel. Head normal, not expanded laterally. Eyes partly or entirely over mouth; nictitating eyelids present. Spiracles nearly or quite as long as eyes. Nasoral grooves absent. Mouth subterminal on head, behind snout tip. 5 gill slits on each side. Last 1 or 2 gill slits over pectoral-fin bases. Internal gill openings either without gill rakers or with a few low papillose gill rakers along their edges. Largest teeth in mouth are well lateral on dental band, not on either side of symphysis; no gap or intermediate teeth separating large anterior teeth from still larger lateral teeth in upper jaw. Adults with over 200 rows of teeth in each jaw. Caudal fin asymmetrical, not crescentic, with ventral lobe relatively short or absent. Caudal fin less than half the length of rest of shark. Dorsal caudal-fin margin smooth. No keels on caudal peduncle, or weak ones. No precaudal pits.
Similar Species: None.
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