PENNATULIDA. 



III. Remllece. 



Bathyptilum K611. 



T , , ... Fam. Rcnillida. 



Pam. Umbellulidff. 



rr , ,, , T Renilla Lam. 



UmbeUula Lam. 



Fam. Protocaulidce. 



D , ...... IV. Veretillece. 



Protocaulon Koll. 



Cladiscus Kor. Dan. 



Fam. Protoptilidce,. 



Protoptilum Koll. 

 Lygomorpha Kor. Dan 

 Microptilum Koll. 

 Trichoptilum Koll. 

 Leptoptilum Koll. 

 Sclcroptilum Koll. 



Fam. CavcrnularidcE. 



Cavernularia Val. 



Stylobelernnon Koll. 

 Fam. Lituaridce. 



Lituaria Val. 



Veretillum Cuv. 



Policclla Gray. 



Clavella Gray. 



S t u d e r (Versuch eines Syst. der Alcyonaria. Arch. Naturgesch. 53. Jahrg. i. 1887, p. 22, and 

 Challenger Report vol. 31, p. XXVII) has followed Koren & Danielssen 1 ), and like these authors 

 added a fifth to the four groups of Kolliker: Gondulece with fam. Gondulida, genus Gondull&jst. Dan. 

 but has otherwise restricted himself to the inserting of the later established genera into the families 

 of Kolliker (Sciophyllum Verr. in fam. Pcnnahdida, Svava Kor. Dan. in Stylatulidce, Gunneria Kor. Dan. 

 and Distichoptiluin Verr. in Protoptilidce}. Later (Note prelim, etc. Camp, de 1'Hirondelle 1890) he 

 lias inserted into the fam. Pterocididce the new genus Gyrophylium Stud. Kiikenthal (Diagnosen 

 neuer Alcyonarien aus der Ausb. d. Deutschen Tiefseeexpedition. Zool. Anz. 25. Bd., 1902, p. 302) has 

 added still another (the sixth) group: Verticilladece: fam. Chunncllidce, genera Chunella Kiikenth. 

 and Amphiaiitlius Kkth. Bourne (Anthozoa in the treatise on Zoology edited by Ray Lankester, 

 part II, 1900) almost without any alteration --at all events, without any essential alteration - - has 

 followed Kolliker; it has to be remarked, however, that he regards the two families of Kolliker Vir- 

 gularidce and Stylatulida as subfamilies of one family Virgularidce; Pennatididce and PteroeididtK Koll. 

 are regarded also as subfamilies; and the family Gondulidce is placed beside, and in the same group 

 with these families; finally also Funiculinidce and Bathyptilida are degraded to subfamilies of one 

 family, as are also the two families of Veretillinse. The system has been more highly modified in 

 Delage & Herouard (Traite de Zoologie concrete T. 2, Partie 2, 1902); here there are five groups: 

 i) Frondina (Renilla}, 2) Umbcllina (UmbcUula), 3) Juncina (Spicata -f- Veretillece. of Kolliker), 4) Pcnnina 

 (= Pcnnatuleee of Kolliker), $ Acaultntz (Gondul). The extent of the families remains otherwise almost 

 unaltered; the family Protocaulidce of Kolliker, however, has been placed under the family Kopho- 

 belemnonincB D. & H., and the genus Deutocaidon Marsh. & Fowler has been included in the same 

 family; the genus Cladiscus Kor. Dan. has been removed to the family Protoptilince; the genus Svava 

 Kor. Dan. to the family Virgularin<K\ several genera of the same family, as Lygus Herkl., Radicipes 

 Stearns, as also some of the genera established by Gray in the family Pennatulinee are also enumerated. 



') Nye Alcyonider etc. 1884. 



