88 ' ENDEAVOUR ' ' SCIENTIFIC RESULTS. 



Family GORGONELLID.E. 

 Genus CTENOCELLA, Valenciennes. 



Simpson 1 and Nutting 2 have both shown that the genus 

 Scirpearia, as understood by authors generally, is not iden- 

 tical with that of Cuvier, the latter being based on a Pen- 

 natulid. Simpson has retained the genus in its emended 

 form, which, however, cannot be admitted according to the 

 rules of zoological nomenclature. Nutting, on the other 

 hand, has distributed the various species which were in- 

 cluded in Scirpearia into other genera of the Gorgonellida?. 



Simpson also argued that Ctenocella is not distinct from 

 his emended Scirpearia from which it only differs in the 

 mode of branching. If his opinion be accepted, the single 

 species of Ctenocella (C. pectinata) must be placed in one of 

 the several genera into which Nutting has distributed the 

 various species erroniously included in Scirpearia. Nutting, 

 however, has not recognised the identity of Ctenocella and 

 Scirpearia (emended), but maintains it as a good genus ; 

 under the circumstances I prefer to follow him. 



CTENOCELLA PECTINATA (Pallas). 

 (Plate iv., fig. 5 ; Plate xii.) 



Gorgonia pectinata, Pallas, Elenchus Zoophytorum, 1766, 

 p. 179. Id., Ellis and Solander, Nat. Hist. Zoophytes, 

 1786, p. 85. Id., Lamouroux, Hist. Polyp, corall. 

 flexibles, 1816, p. 416. 



Gorgonella pectinata, Kolliker, Icones Histiologies, ii., 

 1865, p. 140, pi. xviii., fig. 41. 



Ctenocella pectinata. Valenciennes, Comptes Rendus, xli., 

 1855, p. 14. Id., Milne-Edwards et Haime, Hist. 

 Nat. Corall., 1857, p. 185. Id., Gray, Cat. Litho- 

 phytes Brit. Mus., 1870, p. 26. Id., Studer, Monats- 

 ber. Akad. Wiss. Berlin, 1878, p. 657. Id., Ridley, 

 Zool. Coll. H.M.S. " Alert," 1884, p. 348. Id., Studer, 

 Versuch eines Systems der Alcyonarien, 1887, p. 68. 

 Id., Wright and Studer, Chall. Rep., Zool., xxxi., 

 1889, p. Ixvi. Id., Studer, Alcyonarien Sammlung 



1. Simpson Proc. R. Irish Academy, xxviii., 1910, p. 307. 



2. Nutting Gorgonacea Siboga Expcd., vi., Gorgoncllidae, 1910, p. 5. 



