REPORT ON THE ALCYONARIA. xxi 



chiefly spiudlcs which are not very densely distributed in the coenenchyma. There is 

 some difficulty in distinguishing this genus from the following. 



7. Lohulavia, Savigny, Lamarck, Hist. Nat. Anim. sans Vert., t. ii. p. 412, 1816; 



Ehrenb., Corall. des rothcn Meeres, p. 57. 



The colony like that of the previous genus, but the short, broad stem is furnished 

 with a series of lobes or lappets, the coenenchyma of which is thickly packed with 

 spicules ; these are spindles, clubs and double clubs. 



8. Sarcophyton, Lesson {pars), Voyage de Bellanger aux Indes orientales, and Zool. 



du Voyage de la Coquille, Zooph., p. 92, 1831; Sarcophytum, emend. Maren- 

 zeller, Zool. Jalirb., Bd. i. p. 351. 



Halcyonium, Ehrenb., Corall. des rothen Meeres, p. 56. 



The colony is mushroom-shaped ; the stem barren, the upper expanse of the colony 

 bearing the polyps, which are dimorphic, and completely retractile. The spicules of the 

 barren stem, polyp bearing portion and polyps are characteristic, being warty spindles, 

 cylinders and club-shaped. 



9. Lobophytum, Marenzeller, Zool. Jahrb., Bd. i. p. 352. 



The colony is not mushroom-shaped. The polyps are dimorphic, occurring only on 

 the lobes of the colony, the base being sterile. The spicules are echinulate spindles and 

 small clubs, with some cylindrical forms with zones of warts. 



10. Anthomastus, Verrill, Amer. Journ. Sci. and Arts, vol. xvi. p. 376, 1878. 



The colony forms a rounded mass, with a short barren peduncle, which is either 

 directly adherent or is fixed in the mud by root-like peduncles. Poljrps dimorphic, the 

 autozooids large, few in number. Spicules spiny and branching spindles. 



11. iV«?i?ioc?enc??wi, Danielssen,NorskeNordhavs-Exped. 1876-1878; Zool. Alcyonida, 



1887, p. 74. 



The colony is arborescent. The axis is hard and grooved ; basal part discoid, 

 coriaceous. The branches arise from base to summit ; they are hard, lobate, fitting 

 compactly to one another ; they are richly furnished with polyps ; these are retractile 

 cylindrical ; in addition, siphonozooids are very numerous. 



(zool. cuall. EXP. — PART Lxiv. — 1889 ) Sss (/ 



