|Family||Scientific Name||Author||Year||Common Name|
|Carcharhinidae||Rhizoprionodon terraenovae||(Richardson)||1836||Atlantic Sharpnose Shark|
Unique Characters: Upper labial folds long and prominent, horizontal on upper lip. Spiracles absent. Lateral keels absent. Second dorsal fin considerably smaller than first, height 0.2-0.5 times first dorsal-fin height. Midlength of first dorsal-fin base usually closer to pectoral-fin insertions than to pelvic-fin origins, sometimes equidistant between pectoral and pelvic-fin bases. No gill rakers. Back grey, blue-grey, or brownish. Anal-fin base expanded anteriorly by a very long pair of preanal ridges.
Similar Species: None.