A review of gorgonian coral species (Cnidaria, Octocorallia, Alcyonacea) held in the Santa Barbara Museum of Natural History research collection: focus on species from Scleraxonia, Holaxonia, Calcaxonia - Part II: Species of Holaxonia, families Gorgoniidae and Plexauridae Author Horvath, Elizabeth Anne text ZooKeys 2019 860 67 182 http://dx.doi.org/10.3897/zookeys.860.33597 journal article http://dx.doi.org/10.3897/zookeys.860.33597 1313-2970-860-67 128BC1830A6A423488931CBD2D2AF962 Genus Eugorgia Verrill, 1868 Lophogorgia (pars) Horn, 1860: 233. Gorgonia (pars) Verrill, 1864: 33; 1866: 327. Leptogorgia Verrill, 1864: 32. Eugorgia (pars) Verrill, 1868c: 414. Eugorgia Verrill, 1868b: 406-407. Studer 1887 : 64-65. Bielschowsky 1918 : 39. Kuekenthal 1924 : 343. Bielschowsky 1929 : 170. Stiasny 1951 : 63. Bayer 1951 : 99; 1981 : 921. Breedy et al. 2009 : 8. Type species. Leptogorgia ampla Verrill, 1864; by subsequent designation Verrill 1868b : 386. Diagnosis. Breedy et al. (2009) did a thorough review of this genus (well represented in the SBMNH collection). Sclerites chiefly disc spindles, capstans or double discs (wheels); double discs up to 0.05 mm long, spindles 0.12-0.18 mm, not developed as clubs; ordinary spindles present in small numbers in some species. Anthocodiae unarmed; sclerites, if present, flat rods and platelets with lobed margins. Polyps fully retractile into coenenchyme, slightly raised to prominent mounds, forming polyp-mounds, in longitudinal rows; often evenly distributed on all sides of branches. Branching is lateral, dichotomous (partial) or pinnate-like, in one plane; if bushy, branches in multiple planes; no anastomoses. Axis contains network of frequently mineralized organic filaments. Colony colors quite variable, depending on species.