Comparison of A Hippocampus denise in situ, Orchid Island, Taiwan at 28 m depth, with its most similar congener B Hippocampus bargibanti in situ, Green Island, Taiwan. Note the differences in body colouration (orange in H. denise vs. purple in H. bargibanti), the number and size of tubercles (fewer and less pronounced in H. denise), snout length (bulbous tip in H. bargibanti vs. non-bulbous in H. denise) and overall shape (slender and elongate in H. denise vs. rotund in H. bargibanti) (Photographs A Yung-Kuang Ting B Ryan Ku).

 
 
  Part of: Heard J, Chen J-P, Wen CKC (2019) Citizen science yields first records of Hippocampus japapigu and Hippocampus denise (Syngnathidae) from Taiwan: A hotspot for pygmy seahorse diversity. ZooKeys 883: 83-90. https://doi.org/10.3897/zookeys.883.39662