42 G 



Canadian Arctic Expedition, 1913-191S 

 Radicipes gracilis Verrill. 



Lepidogorgia qracilis VeiikiLl, op. cit., 1884, p. 220; op. cit., 1885, pp. 512, 533, 

 pi. II, fif-s. 10, 10a. 



FiK^. II) and Uta. Huilirqis ijrarihs W'rrill. Fig. HI. Portion fr )in tlic miiliUe of the .stalk bearing two 

 polype; Ida. l>a~e uf -tallv and hasai ronl-lilve proces.ses, .v 2. 



The axis is simple, tall, slender, tapered to the tip, terete, iridescent. Polyp 

 calii Ics are laru,<', elonjjateil, ofte'n wider than the axis, seated obliquely, well 

 apart, and secund. ( 'olour wlien li\'inji is orange or salmon-color. C'alicles are 

 filled with elongated spindles. ( 'cenenchynia is very thin; its spicules are thin, 

 scale-like, oMong, with I'onnded ends and often constricted in the middle. Root 

 processes are nuich branched, round, hard, calcareous, and taper to small slender 

 tips. Height up to 3 feet oi- more (900 nun.). It was taken by the "All)atross" 

 in 18S3, off Cieorges Bank, in 858 fathoms, and farther south in 1731 find 1735 

 fathoms in large numbers. A comparison with the types of Stearns shows the 

 generic identity <jf Lcpiilagargia. 



Family KERATOISID/E Gray, 1870 (emended). 



Kcraloi.-iidiv -{- AcaiicUnihr + Mopseada' [pars] Gray, Cat. Lithophvtes Brit. 



Alus., PI). 13, ](■), 18, 1870. 

 Ccixdiiisidrc ^'ERI{ILL, Btdlctin !Mus. Gomp. Zool., Vol. XI, p. 11, 1883. 



Axis sini])le (.)r variously branched, with long calcareous joints, which are 

 often hollow, altcriuiting with shorter horny joints. Bi'anches, when present, 

 sonietnncs aiise from tlie calcareous joints, l)Ut more fref|uently from the horny 

 ones. Base calcarcDus, usually divided into long, flat, irregular lobes, serving 

 as anchois m the mud of the sea bottom. Grcnenchyma thin, commonly with 

 lonii lusiform conspicuous spicules, sometimes with other small scale-like ones 

 a1 the surface, ('alleles large and prominent, filled with large fusiform spicules, 

 of which eight (ii- more are larger than the rest and commonly project as sharp 

 marginal spines between the bases of the tentacles, forming an armature for the 

 pi'otcction of the incur^•e^l and iin]icrfectly retracted tentacles. 



