Deep‐Sea Coral Taxa in the Hawaiian Archipelago and Other U.S. Pacific Islands: Depth and Geographical Distribution by Frank A. Parrish1, Amy R. Baco‐Taylor2, Christopher Kelley3, Stephen D Cairns4, and Thomas F. Hourigan5 1. NOAA Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, Honolulu, HI 2. Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee 3. Department of Oceanography, University of Hawaii, Manoa, HI 4. National Museum of Natural History, Smithsonian Institution, Washington, DC 5. NOAA Deep Sea Coral Research and Technology Program, Office of Habitat Conservation, Silver Spring, MD This annex to the U.S. Pacific Islands chapter in “The State of Deep‐Sea Coral and Sponge Ecosystems of the United States” provides a list of deep‐sea coral taxa in the Phylum Cnidaria, Classes Anthozoa and Hydrozoa, known to occur in the U.S. waters around the Pacific Islands (Figure 1). Deep‐sea corals are defined as azooxanthellate, heterotrophic coral species occurring in waters 50 m deep or more. Details are provided on the vertical and geographic extent of each species (Table 1). This list is adapted from Parrish and Baco (2007) with the addition of new species and range extensions reported since 2007, along with a number of species previously not included. Lists for octocorals and scleractinians in Hawaii are based primarily on published literatu re, supplemented with an unpublished list compiled by Dr. Stephen Cairns, with additions from Pisces submersible cruises led by Amy Baco‐Taylor, recent NOAA Ship Okeanos Explorer expeditions, and additions for non‐Hawaiian islands species based on cited literature. The list for antipatharians from Hawaii relies heavily on the dissertation of Daniel Wagner and recent papers, as well as an unpublished list covering Hawaii and Guam compiled by Dennis Opresko. Taxonomic names are generally those currently accepted in the World Register of Marine Species (WoRMS ), a nd are arranged by order, and alphabetically within order by suborder (if applicable), family, genus, and species. Data sources (references) listed are those principally used to establish geographic and depth distribution. The species listed are known to occur in the Hawaiian Archipelago, the only U.S. island region that has been extensively surveyed and sampled. The U.S. Pacific Islands encompass an enormous geographic area and several biogeogra phic provinces. Collections of deep ‐sea corals from deeper waters of the Hawaiia n Archipelago, as well as from elsewhere in the U.S. Pacific, are ongoing. These collections will undoubtedly increase the known number of species and range extensions, and result in a better understanding of the biogeography of deep‐sea corals in the Pacific. Recommended citation: Parrish FA, Baco‐Taylor AR, Kelley C, Cairns SD, Hourigan TF (2017) Deep‐Sea Coral Taxa in the Hawaiian Archipelago and other U.S. Pacific Islands: Depth and Geographical Distribution. Online resource: https://deepseacoraldata.noaa.gov/library/2 017-state-of-deep-sea-corals-report 1 Figure 1. The U.S. Pacific Islands region showing U.S. islands, their exclusive economic zones (red polygons), and Monument boundaries (yellow polygons). Table 1. List of known deep‐sea coral species in the Phylum Cnidaria, Class Anthozoa and Class Hydrozoa, and their reported distributions across the U.S. Pacific Islands. Blue fields indicate newly described species since 2007. Bold text indicates changes to the list found in Parrish and Baco (2007), including additions or range extensions, denoted with an asterisk (*), and changes in taxonomy since 2007, denoted with a cross (†) (e.g., species that were listed in 2007, but have since been given a new name or alternative spelling). “NR” indicates a lack of reported distribution or depth information. References are numbered to correspond with citations following the table, along with notes (in superscript letters) pertaining to individual taxa. Distribution: HI = throughout Hawaiian Archipelago (including Main & Northwestern Hawaiian Islands); MHI = Main Hawaiian Islands; NWHI = Northwestern Hawaiian Islands; JA = Johnston Atoll; CNMI = Commonwealth of the Northern Marianas; Kingman = Kingman Reef; Jarvis = Jarvis Atoll; LI = Line Islands; WI = Wake Island; PA = Palmyra Atoll; AS = American Samoa. Depth ranges are further designated as follows: a = depth range known from the full range of the species, including areas outside the U.S. Pacific Islands; b = depth range known from two or more specimens from the U.S. Pacific Islands (mostly from Hawaii); c = depth from a single individual from Hawaii, usually the holotype; d = depth range from the NOAA Deep‐Sea Coral and Sponge Database ‐ principally from HURL video observations. 2 Depth Higher Taxon Species Distribution References Range (m) Class Anthozoa Subclass Hexacorallia Order Antipatharia c Family Antipathidae Antipathes sp. cf. A. curvata van Pesch, 1914 MHI 5 1 a Antipathes grandis Verrill, 1928 MHI 27‐127 2,3,4 Antipathes griggi Opresko, 2009 b HI 9‐110 3,4,5 (= cf. Antipathes dichotoma) Antipathes sp. cf. A. spiculosa (Schultze, 1896) MHI 40‐50 1 † Cirrhipathes cf. anguina (Dana, 1846) b HI, CNMI 2‐158 1,3,4,6,7 (= Cirrhipathes anguina) b Cirrhipathes spiralis (Linnaeus, 1758) HI, JA 91‐454 1,7,8 b Stichopathes echinulata Brook, 1889 HI 90‐565 3,4,6 b *?Stichopathes sp. HI 9‐58 3,4 b Family Acanthopathes undulata (van Pesch, 1914) HI, CNMI 30‐490 1,4,6 Aphanipathidae Aphanipathes verticillata mauiensis Opresko c MHI 88‐130 3,4,9 et al. 2012 a Family Trissopathes pseudotristicha Opresko, 2003 HI 326‐2730 1,10 a Cladopathidae Trissopathes tetracrada Opresko, 2003 HI 375‐2220 1,10 Family Leiopathidae Leiopathes annosa Wagner & Opresko 2015 (= Leiopathes glaberrima ‐ does not occur in the HI, JA 295‐536 11,12 Pacific) c Leiopathes sp. nov. MHI 966 11 a Family Myriopathes sp. cf. M. japonica (Brook, 1889) MHI 29‐126 1,13 Myriopathidae Myriopathes cf. ulex (Ellis & Solander, 1786) a HI, Guam 25‐364 3,4,8,14,15 (= Myriopathes ulex) † Family Alternatipathes alternata (Brook, 1889) b HI, Kingman 417‐1809 1,13,16 Schizopathidae (= Bathypathes alternata Brook, 1889) d Bathypathes conferta (Brook, 1889) HI, Kingman 306‐1745 6,12 d Bathypathes patula Brook, 1889 HI 321‐1667 1,13 c *Bathypathes seculata Opresko, 2005 MHI 1761‐2056 1,17 c *Dendrobathypathes sp. MHI 120 14 c Dendropathes bacotaylorae Opresko, 2005 HI 408 1,17 † Dendropathes intermedia (Brook, 1889) d HI, JA 162‐508 7,17 (= Antipathes intermedia) *Parantipathes sp. HI, Kingman 1535‐2464 1,7,18 a Stauropathes staurocrada Opresko, 2002 HI, JA 315‐1700 1,19 b Stauropathes sp. HI 389‐2647 1,16,20 b Umbellapathes helioanthes Opresko, 2005 HI 1205‐1383 1,17 Umbellapathes sp. nov. HI, JA 742‐2638 1,21,22 3 Depth Higher Taxon Species Distribution References Range (m) Order Scleractinia c Family Anthemiphyllia macrolobata Cairns, 1999 HI 369 1,23 b Anthemiphylliidae Anthemiphyllia pacifica Vaughan, 1907 HI, MI 205‐296 1,24,25 b Family Anomocora sp. cf. A. fecunda (Pourtalès, 1871) HI 201‐271 25 b Caryophylliidae Bourneotrochus stellulatus (Cairns, 1984) HI 274‐336 1,25 Caryophyllia sp. cf. C. (Caryophyllia) ambrosia b HI 56‐206 25 Alcock, 1898 Caryophyllia (Caryophyllia) atlantica b HI 1602 1,24,25 (Duncan,1873) Caryophyllia (Caryophyllia) hawaiiensis Vaughan, b HI 44‐388 1,24,25 1907 b Caryophyllia (Caryophyllia) marmorea Cairns, 1984 HI 331‐337 1,25 Caryophyllia (Caryophyllia) octopali Vaughan, b HI 457‐627 1,24,25 1907 b Caryophyllia (Caryophyllia) rugosa Moseley, 1881 HI 137‐439 1,24,25 b Ceratotrochus laxus Vaughan, 1907 HI 583‐678 1,24 b Coenosmilia inordinata Cairns, 1984 HI 244‐322 1,25 b Conotrochus funicolumna (Alcock, 1902) HI 165‐600 1,25 b Crispatotrochus rubescens (Moseley, 1881) HI, LI 197‐634 1,24,25 b Deltocyathus sp. cf. D. andamanicus (Alcock, 1898) HI 274‐518 25 b 402‐633 Desmophyllum dianthus (Esper, 1794) HI d 1,26,27 310‐505 b Paracyathus molokensis Vaughan, 1907 HI 161‐260 1,24 *Solenosmilia variabilis Duncan, 1873 NWHI 650‐729 b 1,28 Trochocyathus (Trochocyathus) aithoseptatus b HI 371‐454 1,25 Cairns, 1984 Trochocyathus (Trochocyathus) burchae (Cairns, c HI 64 1,25 1984) Trochocyathus (Trochocyathus) gardineri b HI 274‐470 1,24,25 (Vaughan, 1907) Trochocyathus (Trochocyathus) mauiensis b HI 174‐278 1,24 (Vaughan, 1907) Trochocyathus (Trochocyathus) oahensis Vaughan, b HI 75‐571 1,24,25 1907 Trochocyathus (Trochocyathus) patelliformis Cairns, c HI 1020 1,23,26 1999 †Trochocyathus (Trochocyathus) a rhombocolumna Alcock, 1902 HI 110‐530 1,24,26 (= Paracyathus tenuicalyx Vaughan, 1907) Family Deltocyathus andamanicus Alcock, 1898 MHI 315‐329 b 1,26,29 Deltocyathidae (sensu Cairns, 1984) Family Balanophyllia (Balanophyllia) desmophyllioides b HI 143‐406 1,24,26 Dendrophylliidae Vaughan, 1907 Balanophyllia (Balanophyllia) diomedeae Vaughan, b HI 110‐307 1,24,25,26 1907 a Balanophyllia (Balanophyllia) gigas Moseley, 1881 HI 90‐640 1,25,26 4 Depth Higher Taxon Species Distribution References Range (m) Family Balanophyllia (Balanophyllia) laysanensis Vaughan, b HI 238‐271 1,24,26 Dendrophylliidae, 1907 b cont. Cladopsammia echinata Cairns, 1984 HI 295‐470 1,25,26 c d Cladopsammia eguchii (Wells, 1982) HI 18‐64 ,151 1,26,30 b 282‐485 Eguchipsammia fistula (Alcock, 1902) HI d 1,26 107‐558 b Eguchipsammia gaditana (Duncan, 1873) HI 244‐470 1,25,26 b Eguchipsammia serpentina (Vaughan, 1907) HI 269‐362 1,24,26 Enallopsammia rostrata (Pourtalès, 1878) HI 362‐583 b 1,25,26 (= Enallopsammia amphleioides) b Endopachys grayi Milne Edwards