alternate br h bear branchlets "i the third order. The other rnain branch 



than ; branchlets from one side only of ik proximal part and is 



pinnai distally. One ol the proximal branchlets bears a regularlj spaced ro\* ol 



Ier unilatcral branchlei embling those of Ctenocella. The ultimate branchlets an 



ound and usuall) erect I Lch a length of 17 cm. and ar< about 1.5 mm. 



rhe calyces are entirely included, being indicated by mere tumidities on the surfaces 



. and by their openings. I in y are lacking on the main stem and proximal paris 



er branches and are mostly lateral on the smaller branches, but sometimes on all 



of the twig terminations. 



rhe individual calyces are so entirely included that they do nol admit of description or 



iurement. Their mouths are indicated by oval openings such as are found in many Plexaurids, 



anti often approach the form of linear slits about 5 mm. in length. Their margins form a 



slightly elevated rim with scarculy any evidence of lobes. Hu polyps are deeply retracted 



within the ccenenchyma, where they take the form of flattened dises with an oval outline and 



with their tentacles armed with longitudinally disposed spindlt 



A cross section of the stem shows a thin ccenenchyma and large water-vascular canals 

 on all sides of the flattened horny axis. 



Spicules. 1 hese are nearly all doublé spindles or girdled spindles, more slender than 



usual and often curved. They are surrounded by symmetrical whorls of verrucae, the two whorls 



which bound the girdle being more conspicuous than the others, which diminish gradually in 



towards the ends of the spindle. rhe spicules of this species are remarkably uniform in 



character, differing mainly in si/e. due probably to relative a; 



lor. Colony white, axis black proximally, lightening distally. 



Genus Leptogorgia Milne Edwards emended by Verrill). 



Leptogorgia (in part Milne Edwards et Haime. Histoire naturelle des Coralliaires, I, 1857, p. 163. 



in part) Kölliker. Icones Histiologicae, II. 1865, p. 1 

 Lept Verrill. [Van actions Connecticut ^.cademy of Arts and Science, 1, 1, 1867 — 71, 



1 Verrill. American Journal of Arts and Science. XIA'II, [869, p. 419. 

 Lept ■ Studer. Monatsbericht der Königl. Akad. tier Wissenschaften zu Berlin, 187S, p. 654. 



Lep ■ Wright and Studer. Challenger Reports, the Alcyonaria, 1889, |>. 151. 



1 in part Hickson. Alcyonaria and Hydrocorallinae of the Cape of Good Hope. 



D et H rouard. Traite drs Zoölogie concrete. II, 2, 1901, p. 420. 



Lept Nuttin-, Alcyonaria of the Californian Coast, [909, p. 722. 



original definition of this genus is as follows: 



"Les e axe non calcifère, dont Ie ccenenchyme est pelliculaire c'est-a-dire tres- 



mince, et d'un tissu ■ el dont les calyces n'ont pas los bords saillants. Elle se distingue 



s proprement ditos, par 1'absence t\<- verrues calicifèn : el s'éloigne des 



ition du ccenenchyme, qui, chez cos derniers, est remarquablement épars 



