182 A. E. Verrill — Comparisons of Coral Faunw. 



HYDROCORALLIA. 



Family Milleporidae Flem. {pars), 1828. Edw. and Haime {x)ars), Hist. Corall., 



iii, p. 234, 1860. 



Millepora alcicornis Linne. 

 Dana, Zooph., p. 543, 1846. Edw. & Haime, Corall., iii, p. 228, 1860. 

 Pourtalfes, Florida Eeefs, pi. xx, figs. 1-6, 1880, excellent. Queleh, Voy. 

 Chall., xvi, p. 190, 1886. Vaughan, Corals Porto Rican Waters, p. 318, 

 plates xxxv-xxxviii. 



Finger Coral. Sea Ginger. Ginger Coral, 





3 %.W jr 



Figure 13. — Millepoi^a alcicornis L. 

 Tips of branches, f natural size. After Sonrel, in Agassiz. 



Abundant everywhere on the Bermuda reefs and also on ledges 

 and rocks near the shore, in 0-.5 to 5 fathoms ; Harrington Sound, 

 0.5 to 4 fathoms. Abundant on the Florida Reefs and throughout 

 the West Indies to Colon. Abrolhos Reefs, Brazil, (var.) 



Quelch recorded also M. ramosa Pallas (two specimens), and 

 M. Carthaginiensis Dueh. & Mich., as from the Bermudas. I did 

 not find any specimens agreeing with either of these forms, which 

 may be only growth-varieties of alcicornis. 



The following species, which are not reef-corals, were recorded by 

 Moseley as dredged by the Challenger about the Bermudas. See 

 vol. ii, part 7, pp. 138-184, 1880 : 



fCaryophyllia cylindracea, Reuss. ; Moseley, p. 138. — 435 fath. 



Axohelia dumetosa Duch. ; Moseley, p. 182. — 435 fath. 



Cladocora arhnscula Edw. & H. ; Moseley, p. 184. — 435 fath. 



Bathyactis symmetrica Moseley, p. 186, pi. xi, figs. 8-9a. — 32 fath. 

 and 1075 fath. 



Deltocyathus italicus Edw. & Haime ; Moseley, p. 145, cuts. — 

 1075 fath. 



Caryophyllia communis Moseley, p. 135, pi. i, figs. 4-5a. — 690 

 fath. 



