86 MILLEPORA. 



slight dej)ression, and are surrounded by five or six small ones. This 

 arrangement is subject to many exce2otions, however. The smaller 

 calicles are about half the diameter of the larger ones. This species 

 incrusts foreign objects, like the other ones. It is represented on a 

 Gorgonia by Seba, Tab. 106, No. 8. A similar specimen is in the 

 Museum, collected by myself in Florida. 



Millepora alcicornis Lamk. 



Millepora alcicornis (pars) Linn. 

 Millepora alcicornis Pallas (var. a, 1 and 2). 

 Millepora alcicornis Esper. (var. a, and 2). 

 Millepora alcicornis Dana. 

 Millepora alcicornis DucH. & Mich. 

 Millepora crista-galli DucH. & Mich. 

 Millepora delicatula DucH. & Mich. 

 Millepora ScJirammi Duch. & Mich. 



This species is very polymorphous, but in general can be recognized 

 by its small and numerous digitations, showing a flabellate tendency, 

 sometimes flattened into a coxcomb shape at the end of the branches ; 

 very small calicles, without depressions generally, or if so, both large 

 and small in saucer-like pits. Duchassaing and Michelotti have ajopar- 

 ently multiplied the species unnecessarily; one West India form is, 

 however, probably different, being very slender from the stem to the 

 branches, spreading, and seldom coalescing ; it is probably the vari- 

 ety 7-amosa Pallas ; 3IiUe-poya ramosa Dana. I have not observed it in 

 Florida. 



