Etmopterus litvinovi Parin & Kotlyar, 1990
Material: adult female paratype (USNM 423209), 515 mm TL; Costa Rica
Images: © Victoria VÁSQUEZ, Dave EBERT and Douglas LONG
Tooth formula (upper/lower): 25 (26–30)/34 (30–36)
A) Upper and lower in situ dentition of specimen before preservation; B) upper right functional tooth row showing the labial face; C) lower right functional tooth row showing labial face of lateral teeth (left), mesial to anterolateral teeth (right)