Systematic description of genera and species. 

 Genus LophogOfgia Milne Edwards et Haime. 



Lophogorgia Milne Edwards and Haime. Histoire naturelle des Coralliaires, I, 1857, p. 167. 



Gorgonia (in part) Kolliker. Icones Histiologicae, II, 2, 1865, p. 139. 



Leptogorgia (in part) Verrill. Transactions Connecticut Academy of Arts and Sciences, I, 2, 



186771, p. 387. 

 Leptogorgia Duchassaing de Fontbressin. Revue des Zoophytes et des Spongiaires des Antilles, 



1870, p. 17. 



Lophogorgia Studer. Versuch eines Systemes der Alcyonaria, 1887, p. 63. 

 Lophogorgia Wright and Studer. Challenger Reports, the Alcyonaria, 1889, p. 150. 

 Lophogorgia Delage et Herouard. Traite de Zoologie Concrete, II, 2, 1901, p. 420. 



The original definition of this genus is as follows: 



" Polypieroide etale en forme de panache ou d'eventail, a une ou a plusieurs branches 

 maitresses et a tige aplatie". 



KOLLIKER (1865) placed practically all of the genera of Gorgonidae, including Lophogorgia, 

 in the genus Gorgonia. 



No further definition of the genus appears until STUDER, (1887) gave the definition of 

 which the following is a translation : 



"Colony upright, flabellate, with flattened stem and branches and cylindrical twigs. 

 Polyps without calyces, immersed in the ccenenchyma and scattered on all sides of the ultimate 

 branchlets. The larger water-vascular canals are on the flattened sides of the branches, but are 

 peripheral on the round twigs. Spicules small double spindles". 



WRIGHT and STUDER, (1889) give a definition which is practically identical with the one 

 just quoted, and which is adopted in the present work. 



The type of the genus Lophogorgia is Lophogorgia palma (Pallas). Other described 

 species are Lophogorgia alba *, L. crista Mobius, L. irregularis Thomson and Henderson, 

 L. liitkeni Wright and Studer, L. rubrotincta T. and H. and the single new species in the 

 Siboga Collection ~. 



i. Lophogorgia pinnata new species. (Plate I, figs, i, \a\ Plate III, fig. i). 

 Stat. 273. Anchorage off Pulu Jedan, East coast of Aru Islands. 13 meters. 



Colony flabellate in form, branching pinnate, not anastomosing, height 31 cm., spread 

 about 1 2 cm. The stem and larger branches are flattened and marked on their flat surfaces 

 with impressed grooves which are often tortuous and irregular in number and extent. Stem 

 with a cross section of 4.5 mm. X 3-6 mm. 4 cm. from its base it divides into two large and 

 subequal branches. One of these is quite tortuous in its proximal part, giving off irregularly 

 alternate and lateral branchlets which are usually simple, slender and curved outward. The 

 distal part of this branch is comparatively straight and gives off usually simple irregularly 



1 This species is merely mentioned by DUCHASSAING DE FONTBRESSIN (1870) who does not give the authority. 



* L. flammta (Ellis and Solander) is regarded by MILNE EDWARDS and HAIME as a synonym of L. palma (Pallas). 



