Simpson — A Revismi of (he Oorfjonellidne. 61 



Locality. — Hong-Kong, China. 



Gray (xii., p. 29), not having seen the specimen, simply recapitulates the 

 above description. 



Juncella extans. 



Juncella extans, Verrill, xlvii., p. 37. 



" Tall and simple, writh the very prominent verrucae curved inwards, and 

 arranged crowdedly in a baud on each side of the axis, leaving a wide, naked 

 space on each side. Colour wliite. Axis greyish-white, stony, and rigid." 



Locality. — Fayal, Azores. 



XIV. — Scirpearia emend. 



(a) Discussion of the Genns. 



1830 Scirpearia, Cuvier, i. p. 319. 



1878 Scirpearia, Studer, xxxiv., p. 660. 



1887 Scirpearia, Studer, xxxv., p. 67. 



1901 Scirpearia, Studer, xxxvii., p. b'l. 



1889 Scirpearia, Wright and Studer, 1., p. Ixv. 



1889 Scirpearella, Wright and Studer, 1., pp. Ixv and 1,J4. 



1855 Ctenocella, Valenciennes, xlvi., p. 14. 



1857 EUisella, Gray, x., p. 287. 



This genus was establislied by Cuvier iu 1830 to include Pennatula 

 mirabiiis, but the following note may be interesting : — Milne-Edwards ami 

 Haime (Hist. Nat. Corall., 1. 0. 214) say: "The Alcyonarian described ami 

 figured by Cuvier under tlie name Pennatula mirabiiis seems to be very little 

 connected with Virgidaria mirabiiis, as some have suggested. It has a 

 slender stem attenuated at the two extremities, and bearing at each side a 

 simple series of widely separated polyps. Cuvier formcil of it the genu.s 

 Scirpearia, which has been adopted by Elirenberg. Lamarck placed it in his 

 genus Funiculina, near Pavouaria, under the name of Funint/ina ci/llntlrita. 

 Fleming thought that tlie species was not distinct from Virgularia ; and 

 Blainville affirmed Lliat it was nothing but a (Jorgonia. None of ihcse 

 opinions seem to me admi.ssible. It is too imperfectly known tu have a 

 place assigned to it iu a scientific classification of corals." 



1 11 1878 Studer resuscitated tlie genus, and gave the following diagnosis : — 

 "Colony simple or branched; axis cylindrical, bnniy, and calcareous; 

 coeuenchyma thin; calyces projecting; in two longiludinal rows on the ^^i(lcs 

 of the stem and branches ; spicules double-clubs and spindles." 



This, then, must lie our starting-point in generic determination. 



