The Collaborative International Dictionary of English v.0.48:

Dactylotheca \Dac`ty*lo*the"ca\
   (d[a^]k`t[i^]*l[-o]*th[=e]"k[.a]), n. [NL., fr. Gr. da`ktylos
   finger, toe + qh`kh case, box.] (Zool.)
   The scaly covering of the toes, as in birds.
   [1913 Webster]