Supplementary Material (Appendix 1)

Supplementary material (Appendix 1).

List of additional materials examined for this study. Abbreviations for institutions where this material is deposited: MCZ, Museum of Comparative Zoology, Harvard University; USNM, National Museum of Natural History, Smithsonian Institution. Neospongodes caribaea Deichmann, 1936. MCZ CNID-4068. Syntype, RV Enterprise cruise, off Martinique, West Atlantic, no depth annotated, Captain Cole coll., “nº

6450”, fragmented colony.

Siphonogorgia caribaea (Deichmann, 1936). USNM 1025683. North Atlantic Ocean, Gulf of Mexico, Flower Garden Bank, 27º51.45’N 93º49.01’W, 77 m depth, 26 May

2004, ROV. Det.: S.D. Cairns, 7 Jul 2004. 1 colony.

Siphonogorgia caribaea (Deichmann, 1936). USNM 52532. North Atlantic Ocean, Caribbean Sea, Barbados, W coast, 50-400 m depth, 2 Aug 1961. Coll.:J. Lewis. Det.:

F.M. Bayer, 1 fragment.

Neospongodes agassizii Deichmann, 1936. MCZ CNID-4069. Syntype, USCSS Blake Expeditions, Stn. 45, off Northwest of Dry Tortugas, West Atlantic, 101 fms., collected by Alexander Agassiz, “nº 6454”, 10 fragmented colonies.

Neospongodes agassizii Deichmann, 1936. MCZ CNID-4383. Syntype, USCSS Blake Expeditions, Stn. 276, off Barbados, West Atlantic, 94 fms., collected by Alexander

Agassiz, “nº 6464” 5 fragmented colonies.

Neospongodes agassizii Deichmann, 1936. MCZ CNID-4369. Syntype, USCSS Blake Expeditions, Stn. 132, off Frederikstadt St. Croix, West Atlantic, 117 fms. , collected by Alexander Agassiz, “nº 6474, phot”, 2 fragmented colonies.

Siphonogorgia agassizii (Deichmann, 1936). USNM 74707. North Atlantic Ocean, Gulf of Mexico, Off Florida, 25º44.50’N 84º21.02’W, 159 m depth, 26 Jul 1981. Det.:

J.W. Lorry, Dec 1981. 1 fragment.

Siphonogorgia agassizii (Deichmann, 1936). USNM 74707. North Atlantic Ocean, Gulf of Mexico, Texas, edge off shelf, NW part of Gulf, 28º00.00’N 92º46.30’W, 93-119 m depth, May 1957. Det.: F.M. Bayer, 1960. 1 colony. Siphonogorgia agassizii (Deichmann, 1936). USNM 86975. North Atlantic Ocean , Gulf of Mexico, Florida, W Cape Sable, 25º16.30’N 84º14.46’W, 159 m depth, 10 Feb

1982. 1 colony.

Siphonogorgia agassizii (Deichmann, 1936). USNM 1014639. North Atlantic Ocean, Caribbean Sea, Netherland Antilles, Curaçao, South central coast off Piscadera Baai,

12º06.39’N 68º58.43’W, 101 m depth, 21 May 2000. Det.: S.D. Cairns, Dec 2000. 1 colony.

Siphonogorgia agassizii (Deichmann, 1936). USNM 82927. North Atlantic Ocean, Gulf of Mexico, Florida, W NW of Dry Tortugas, 25º16.34’N 83º43.40’W, 92 m depth, 5

Feb 1988. 1 colony.