Summon Nature's Ally IV

(Player's Handbook v.3.5, p. 288)

Conjuration (Summoning) [see text]
Level: Druid 4, Ranger 4, Animal 4,
Components: V, S, DF,
Casting Time: 1 round
Range: Close (25 ft. + 5 ft./2 levels)
Effect: One or more creatures, no two of which can be more than 30 ft. apart
Duration: 1 round/level (D)
Saving Throw: None
Spell Resistance: No

This spell functions like summon nature's ally I, except that you can summon one 4th-level creature, 1d3 3rd-level creatures of the same kind, or 1d4+1 lower-level creatures of the same kind.

When you use a summoning spell to summon an air, chaotic, earth, evil, fire, good, lawful, or water creature, it is a spell of that type.

4TH LEVEL

Arrowhawk, juvenile
Bear, brown (animal)
Crocodile, giant (animal)
Deinonychus (dinosaur)
Dire ape
Dire boar
Dire wolverine
Elemental, Medium (any)
Salamander, flamebrother [NE]
Sea cat 1
Shark, Huge 1 (animal)
Snake, Huge viper (animal)
Tiger (animal)
Tojanida, juvenile 1
Unicorn [CG]
Xorn, minor
1 may be summoned only into an aquatic or watery environment