Steiner's fictional author, credited as "quondam curator of the Museum of the Darwin Institute of Hy-yi-yi, Mairuwili", provides a very detailed account of the order and individual species, written in a dry, scholarly tone.
Michael Ohl wrote that the book is written "in truly amusing attention to detail and using what is immediately recognizable as a practiced scientific patois". The evidently expert voice of the author, his competent writing, and apparent familiarity with conventions of academic literature set the work apart as a rare example at the intersection of fiction and scholarship. Steiner credits himself by name as illustrator of the book, and explains how that role led him to possess the only remaining record of Rhinogradentia.
Discovery and study at Hy-yi-yi According to Stümpke, Rhinogradentia were native to Hy-yi-yi, a small
Pacific archipelago comprising eighteen islands: Annoorussawubbissy, Awkoavussa, Hiddudify, Koavussa, Lowlukha, Lownunnoia, Mara, Miroovilly, Mittuddinna, Naty, Nawissy, Noorubbissy, Osovitissy, Ownavussa, Owsuddowsa, Shanelukha, Towteng-Awko, and Vinsy. The islands occupied and the archipelago's highest peak, , was on its main island, Hiddudify (Hy-dud-dye-fee). The first description of Hy-yi-yi published in Europe was that of Einar Pettersson-Skämtkvist, a Swedish explorer who arrived in Hiddudify by chance in 1941, after escaping from a Japanese
prisoner-of-war camp. Each of the islands was home to distinctive fauna, dominated by Rhinogradentia, the only mammals other than humans and one species of shrew. In the time after the war, a number of scientists took interest in the rhinogrades and began formal research into their physiology, morphology, behaviors, and evolution. In the late 1950s, nearby
nuclear weapons testing by the
United States military accidentally caused all of the islands of Hy-yi-yi to sink into the ocean, destroying all traces of the rhinogrades and their unique
ecosystem. Also killed were all the world's Rhinogradentia researchers, who were attending a conference on Hy-yi-yi at the time. The book's epilogue, credited to Steiner in his capacity as the book's illustrator, explains that Stümpke had sent the book's materials to Steiner to serve as the basis for illustrations in preparation for publication. Following the disaster, it is the only remaining record of the subjects it describes.
Biological characteristics and behavior Rhinogrades are
mammals characterized by a nose-like feature called a "nasorium", the form and function of which vary significantly between species. According to Stümpke, the order's remarkable variety was the natural outcome of
evolution acting over millions of years in the remote Hy-yi-yi islands. All the 14
families and 189 known snouter
species descended from a small
shrew-like animal, which gradually evolved and diversified to fill most of the
ecological niches in the archipelago — from tiny worm-like beings to large herbivores and predators. Many rhinogrades used their nose for locomotion, for example the "snout leapers" like
Hopsorrhinus aureus, whose nasorium was used for jumping, or the "earwings" like
Otopteryx, which flew backwards by flapping its ears and used its nose as a
rudder. Some species used their nasorium for catching food, for example by using it to
fish or to attract and trap insects. Other species included the fierce
Tyrannonasus imperator and the shaggy
Mammontops. Pettersson-Skämtkvist's early descriptions of the animals he encountered on Hy-yi-yi led zoologists to name them after the title creature in Christian Morgenstern's
The Nasobame. In the poem, which exists outside of this fictional universe and also served as an inspiration for Steiner, the Nasobame is seen "striding on its noses" (
auf seinen Nasen schreitet).
Genera Stümpke's book classifies 138 species of rhinograde in the following fictitious
genera: The names generally refer to particular forms or functions of the nasorium of animals in that genus, typically providing vernacular names for clarity. ==Publication history==