Rhizoprionodon porosus (POEY, 1861)
Material: male, 95 cm TL, Buccoo Reef, Tobago, collection: Jaws International, Gordon Hubbell, Florida, coll. J.I. Castro
Images: © Ross Robertson, Smithsonian Tropical Research Institute, Panama, images shows the correct position of the teeth
Description after Springer, 1964 [#2274]: Upper teeth 11-1-12 to 13-1-13 (usually 12-1-12); lower teeth 12-12; cusps of some upper teeth in large specimens faintly to moderately serrulate; cusps of lower teeth adumbrating this condition; dentition of mature males (one seen) and females similar. Denticles imbricate, 3-ridged and 3-toothed in young; 3- to 5- ridged and 3-toothed or irregularly margined in adults.
Material: female, 84,5 cm TL, American Museum of Natural History, coll. nr. 510, Trinidad, Port of Spain, coll. 22.08.1987
Images: © Ross Robertson, Smithsonian Tropical Research Institute, Panama, images shows the correct position of the teeth 
