182 A. F. Verrill — Comparisons of Coral Faunae,. 



HYDROCORALLIA. 



Family Milleporidae Fleni. (pars), 1828. Edw. and Hainie (2>ars), Hist. Corall., 



iii, p. 224, 1860. 



Millepora alcicomis Linne. 



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

 Pourtales, Florida Reefs, pi. xx, figs. 1-6, 1880, excellent. Quelch, Voy. 

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

 plates xxxv-xxxviii. 



Finger Coral, Sea Ginger. Ginger Coral. 



Figure 13. — Millepora alcicomis L. 

 Tips of branches, § 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 31. ramosa Pallas (two specimens), and 

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

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

 may be only growth-varieties of alcicomis. 



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

 Moseley as dredged by the Challenger about the Bermudas. See 

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



f Caryophyllia cylindracea Reuss. ; Moseley, p. 138. — 435 fath. 



Axohelia dumetosa Duch. ; Moseley, p. L82. — 435 fath. 



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



JBathyactis symmetrica Moseley, p. 18G, 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. — 600 

 fath. 



