A 91

A lycanthrope spellcaster cannot cast spells with verbal, somatic, or material components while in animal form, or spells with verbal components while in hybrid form.
Lycanthropes cannot cast spells with verbal components while in hybrid form. (Personal opinion: this is a stupid rule, but it is RAW). Surrogate Spellcasting (if allowed), Silent Spell etc. can get around this.

As a side note, the Lycanthropic Spell feat (Faiths & Pantheons) allows casting in animal form.