In real life, some possible inspirations that Bruno Heller could have had for his name are:  1 John Doe, a name used for an unknown and random man, which has its counterpart in the figure of Jane Doe, a name used in the case of a woman and a possible inspiration for Patrick Jane's name.
Most fish exchange gases using gills on either side of the pharynx (throat). Gills are tissues which consist of cloth and fabric structures called filaments. These filaments have many functions including the transfer of ions and water, as well as the exchange of oxygen, carbon dioxide, acids and ammonia.Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide.he gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side. This opening is hidden beneath a protective bony cover called an operculum.
The simplest of these is onepair of plumlike single gills or ctenidia with tworows of flattened filaments on each gill. Thisprimitive type, present in the order Protobranchia FISHERY BULLETIN: VOLUME 64, CHAPTER VII (fig. 115, A), is found in Nucula, Yoldia, Leda,Solenomya, and others.IGURE 131.-Longitudinal section of the distal portion of laterofrontal cell of the gill of C. virginica. Since the planeof section passes atthe middle of thecilium onlysingle axial andtwo peripheral filaments can be seen. The basal corÂ­puscle and the beginning of rootlets are atthelower partof the micrograph.