James Blish - Case of Conscience

The southern continent has one low mountain range (highest peak 2263 meters) paralleling its southern shore, and moderating the never very momentous effect of the south winds. The northwestern continent has two ranges, one paralleling the eastern and one the western sea, so that the polar winds have a free run, and give this continent a more variable climate than that of the southern one. The northeastern continent has a slight range along its southern shore. The islands of the archipelago have few hills, and possess an oceanic type of climate. The trade winds are much like those of Earth, but of lesser velocity, due to the lesser temperature differentials between the different parts of the planet. The equatorial sea is nearly windless.

Except for the few mountain ranges, the terrain of the continents is rather flat, particularly near the coasts, and the lower reaches of all the rivers are of the meandering type, bordered with marshes, and with low plains that are flooded, miles wide, every spring.

There are tides, milder than on Earth, producing an appreciable tidal current in the equatorial sea. As the coastal terrain is generally quite flat, except where the mountain ranges come to the sea, wide tidal flats separate the shore from the open sea. The water is similar to that of earth, but considerably less salty. Life began in the sea, and evolved much as it did on Earth. There is a rich assortment of microscopic sea life, types resembling such forms as seaweed and sponges, and many Crustacea and mollusklike forms. The latter are very highly developed and diversified, particularly the mobile types. Quite familiar fishlike forms have emerged and dominate the seas as they do on Earth.

Present-day Lithian land plant life would be unfamiliar, but not surprising, to a terrestrial observer. There are no plants exactly like those of earth, but most of them have a noticeable similarity to those with which the visitor would be familiar. The most surprising aspect is that the forests are of a remarkably mixed type. Flowering and non-flowering trees, palms and pines, tree ferns, shrubs and grasses all grow together in remarkable amity. Since Lithia never had a glacial period, these mixed forests, rather than the uniform type prevailing on Earth, are the rule. In general the vegetation is lush and the forests can be considered as typical rain-forests. There are several varieties of poisonous plants, including most of the edible-looking tubers. Their roots resemble potatoes and they produce extremely toxic alkaloids, whose structure has not yet been worked out, in large quantities. There are several types of bushes which grow thorns impregnated with glucosides which are extremely irritating to the skins of most vertebrates.

The grasses are more prevalent on the plains, shading into rushes and similar swamp-adapted plants in the marshes. There are few desert areas—even the mountains are rounded and smooth, and covered with grasses and shrubs. Seen from space, the land areas of the planet are almost entirely green. Bare rock is found only in the river valleys, where the streams have cut their way down to the lime and sandstone, and in ligneous outcroppings, where flint, quartz and quartzite frequently found. Obsidian is rare, of course, because of the lack of volcanic activity. There is clay to be found in some of the river valleys, with an appreciable alumina content, and rutile (titanium dioxide) is not uncommon. There are no concentrated deposits of iron ore, and hematite is almost unknown.

The land-living animal forms include orders similar to those found on Earth. There is a large variety of arthropods, including eight-legged insectlike forms of all sizes, up to a pseudo dragonfly with two pairs of wings and a wingspread which has been recorded at 86.5 cm. maximum. This variety lives exclusively on other insects, but there are several types dangerous to higher forms of animals. Several have dangerous bites (the poison is generally an alkaloid) and one insect can eject a stream of poisonous gas (reputed to be largely HCN) in quantity sufficient to immobilize a small animal. These insects are social in nature, like ants, living in colonies which are usually left severely alone by otherwise insectivorous organisms.

There are also many amphibians, small lizardlike forms with three fingers on each limb instead of the five that are common to terrestrial land vertebrates. They form an extremely important class, and there are some species that are as large as a St. Bernard dog at maturity. Except for some small and unimportant forms, however, the amphibians are confined to the marshy lowlands near the sea, and the rest of the land is dominated by a class resembling Earthly reptiles. Among these is the dominant species, a large, highly intelligent animal with a bipedal gait which balances itself with a rather stiff, heavy tail.

Two groups of the reptiles went back to the sea and engaged in successful competition with the fish. One adopted a completely streamlined form and is, outwardly, just another 30-foot fish. But its tail fin is in the horizontal plane and its internal structure shows its ancestry. It is the fastest thing in the waters of Lithia, doing nearly 80 knots when pressed (as it usually is by its insatiable appetite.) The other group of returned reptiles resembles crocodiles, and is competent either in the open sea or on the mud flats, although it is not very fast in either situation. Several genera of the reptiles have taken to the air, as did the terrestrial pteranodons. The largest of these has a wingspread of nearly three meters, but is very lightly built. It roosts mainly on the sea cliffs of the southern coast of the northeastern continent, and lives mainly on fish, and such of the gliding cephalopods as it can manage to catch above water. This flying reptile has a large assortment of sharp, backward-curving teeth in its long beak. One other species of flying reptile is of special interest, because it has developed something resembling feathers, in a many-colored crest down its long neck. They appear only on the mature reptile; the young are completely naked.

Some 100,000,000 years ago the land-living reptiles were almost completely wiped out by one of the smallest of their own family, which adopted the easiest method of making a living: eating the eggs of its larger relatives. The larger forms almost completely disappeared, and those that survived (such as the Lithian allosaur) are now almost as rare as the terrestrial elephant (as compared for instance, with the many elephant species of the Pleistocene.) The smaller forms survived better, but are not nearly so abundant now as they once were.

The dominant species is an exception. The female of this species has an abdominal pouch in which the eggs are carried until they hatch. This animal is about twelve feet tall at the crown, with a head shaped for bifocal vision. One of the three fingers on the free forelimb is an opposable thumb.

For any reader who cares, the Lithian words and names he will encounter here and there in this story are to be pronounced as follows:

Xoredeshch: “X” as English “K” or Greek chi, hard; “shch” contains two separate sounds, as in Russian, or in English “fish-church.”

Sfath: As in English, with a broad “a.”

Gton: Guttural “G,” against the hard palate, like hawking.

Chtexa: Like German “Stuka,” but with the flat “e.”

gchteht: Guttural “g” followed by the soft “sh” sound, a flat “e,” and the “h” serving as equivalent of the Old Russian mute sign; thus, a four-syllable word, with a palatal tick at the end, but sounded as one syllable.

Gleshchtehk: As indicated, with the guttural “G,” the “fish-church” middle consonants, and the mute “h” throwing the “k” back against the soft palate.