Its coloration ranges from yellow, more or less bright, to orange with often small dark spots and sometimes darker bands on the tail.

[5] This pygmy seahorse has been reported from several locations in the western Pacific, including Indonesia, Vanuatu, Palau, Malaysia, the Solomon Islands and Micronesia.

The latter includes villi rich in capillaries that surround each fertilized egg creating a sort of placenta supplying the embryos.

Because of this lack of information and the rarity of the species, Denise's pygmy seahorse is currently classified as Data Deficient by the IUCN.

[1] Internationally, it is also listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) this means that it is on the list of species not necessarily threatened with extinction, but in which trade must be controlled in order to avoid utilization incompatible with their survival.