Collected from corals (Millepora) at 1 m depth, its association with the coral is unknown. The specimens were collected together with Gymnothorax buroensis (juvenile individual), Pseudogramma polyacantha, Gobiodon sp., Balistapus undulatus, Enchelyurus kraussi, and 3 unidentified blennies .
Dorsal soft rays (total): 11 - 12; Anal soft rays: 10; Vertebrae: 31. This species is distinguished by the following characters: partial lateral asymmetry, the head slightly asymmetrical when seen from the front; vertebral column bent towards the left in males, to the right in females, at an angle of 40°-45°, with bending starting slightly before level of anus; anus towards the right-hand side of the body in males, towards the left-hand side in females; position of guts is slightly asymmetrical; gills 3; pelvic fin disc rudimentary, in two parts, with a few rudimentary papillae basally in region B; dorsal-fin rays 11-12; anal-fin rays 10; caudal fin with 10 principal rays; naked skin, the surface of head and body covered with a dense pattern of obliquely arranged striae consisting of minute tubercles . : elongated; Cross section: circular.
Behavioural data for Mendeleev's clingfish is currently being reviewed.
Marine; reef-associated; depth range 0 - 3 m . Tropical
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