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EDITED! This text has been edited according to the comment made by @leslieh below.

Bispira cf. mariae
Regarding the difference between B. mariae and B. volutacornis, Trainito and Baldacconi claim in their "Atlante di Flora e Fauna del Mediterraneo" (6th ed. 2021) mariae is the species of the Mediterraneis, whereas volutacornis is found in the Atlantic Sea. But I cannot say how they came by this information.

Sighting the relevant Bispira specimen on iNat I come to the conclusion that the Bispira "volutacornis" respectively "mariae" of the Atlantic coast of Europe are mostly (but not all) comparatively pale in color, variable in color, the bands of the crown are pale or nonexistent. ~ Bispira volutacornis?
The specimen of the Eastern Mediterraneis and Adriatic are mostly (but not all) of a comparatively dark brownish/orange color, mostly with prominent white and black bands. ~ Bispira mariae?

(In the Western Mediterraneis the rate of pale and uniformely colored specimen seems to be somewhat higher than in the E-Med.)

https://www.biodiversitylibrary.org/item/23343#page/683/mode/1up

http://fishbiosystem.ru/PLEURONECTIFORMES/Cynoglossidae/Symphurus_nigrescens2.html

https://www.semanticscholar.org/paper/Larval-development-of-the-spotfin-tonguefish-and-of-Mart%C3%ADnez-Medina/512df2c04fb55f3362f6bb5c5aa3bcca625f1573#extracted
(Figure 2 of Figures and Tables tab)

Salaria basilisca is a species of combtooth blenny found in the Mediterranean Sea near Tunisia and Turkey, also in the Adriatic Sea. This species reaches a length of 18 centimetres (7.1 in) TL. It is found among seagrass, sometimes where there is a rocky substrate. The male guards the eggs produced by several females. They are protogynous hermaphrodites with individuals being females while young changing to males later.

Made with Olympus TG-5
(source: Wikipedia)