Hercules ROV imagery from the Iguanas-Pinguinos hydrothermal vent site at the Galapagos Marine Reserve (excluding H). All images were taken between 1666-1649 m depth. Scale bar represents 10 cm. (a) High-temperature black-smoker chimney at Iguanas-Pinguinos East; (b) egg-cases observed along ridge in close proximity to black-smoker; (c) clutch of egg-cases with dark brown coloration; (d) bright-yellow egg case among associated vent fauna; (e) older egg-case with signs of fouling; (f) collection of egg-case using the Hercules ROV robotic arm; (g) eggcase located within <1 m of active vent chimney (temperature recorded by the probe was 4.52 °C); (h) an adult Bathyraja spinosissima recorded on a previous dive at the Tempus Fugit hydrothermal vent site located about 750 km to the east, but also within the Galapagos Spreading Center. Footage and screenshots provided by Ocean Exploration Trust Inc (www.oceanexplorationtrust.org/).