The genus Rana may be defined as firmisternal Ecaudata with cylindrical transverse processes to the sacral vertebra, teeth in the upper jaw and on the vomer, a protrusible tongue which is free and forked behind, a horizontal pupil and more or less webbed toes.
So, too, fire-worship, especially of the sacrificial flame; the preparation of the intoxicating soma, which fills man with divine strength and uplifts him to the gods; the injunction to good thoughts and good works, imposed on the pious by Veda and Avesta alike: the belief in an unwavering order (rta)a law controlling gods and men and dominating them all; yet with this, a belief in the power of magical formulae (mantra), exclamations and prayers, to whose compulsion not merely demons (the evil spirits of deception druh) but even the gods (daeva) must submit; and, lastly, the institution of a priesthood of fire-kindlers (athravan), who are at once the repositories of all sacral traditions and the mediators in all intercourse between earth and heaven.
The last nerve which contributes to the ischiadic plexus leaves the spinal column in most birds either between the two primary sacral vertebrae, or just below the hindmost of them, and sends a branch to the pubic portion which is composed of post-ischiadic nerves, partly imbedded in the kidneys, and innervates the ventral muscles between the tail and pubis, together with those of the cloaca and copulatory organs.
In accordance with the saltatorial habits of the members of this order, the vertebrae, which number from 40 to 60 in the Caudata, to upwards of in the Apoda, have become reduced to Io as the normal number, viz., eight praecaudal, one sacral and an elongate coccyx or urostyle, formed by coalescence of at least two vertebrae.
The number of vertebrae is - in the cervical region 7, dorsal 13, lumbar 6, sacral 2, caudal varying according to the length of the tail, but generally from 21 to 25.
It is worn in choir at the solemn offices; it is the official sacral dress of the lower clergy in their liturgical functions; it is worn by the priest when administering the sacraments, undertaking benedictions, and the like; the use of the alb being nowadays almost exclusively confined to the mass and functions connected with this.
The revelation thus looked for may be found in natural omens, in the priestly lot or some similar sacral oracle, or, finally, in the words of a seer who is held to be in closer contact with the deity than common men.
There are only two or three vertebrae which are equivalent to those of the reptiles; these true sacrals are situated in a level just behind the acetabulum; as a rule between these two primary sacral vertebrae issues the last of the spinal nerves which contributes to the composition of the sciadic plexus.
On the other hand, the absence of leaven may recall primitive practice before its introduction as a domestic luxury; sacral rites generally keep alive primitive custom.
The ventral inner margin of the preacetabular portion of the ilium is attached to the pre-sacral vertebrae, whilst the inner and dorsal margin of the postacetabular portion is attached to the primary sacral and the postsacral vertebrae.