lopho-

ridge, crest

lophodont teeth

The lophodont pattern can be seen particularly clearly in the elephant. Apart from the tusks [...] the elephant's teeth are reduced to a few enormous molars, each bearing numerous enamel ridges.

tuft

[Any] of the varieties above mentioned [...] may have one or more of its rays forked or branched like a tuft. The spicule is then said to be monolophous, dilophous, trilophous, or tetralophous according to the number of rays so affected.