20 Ccel. 
XVI. C(ELENTERATA. 
Brown (BO) finds that the mesoglcea of Alcyonium digitatum is chiefly 
composed of hyalogen, and contains no gelatine or nucleo-albumen. 
Carlgren (38) states that Gerardia , Lac.-Duth., is a true Zoanthid 
allied to Parazoanthus. 
Carlgren (39) shows how the arrangement of the septa of the Minyadce 
can be derived from that of a 10-rayed Hexactinian. In the Minyadce 
the pedal disc is hollowed out deeply, and the chitiuous axis does not lie 
in the centre of the concavity. In a form resembling Minyas torpedo , 
Bell, a peculiar arrangement of the septa was observed. 
Duerden (58) describes the anatomy of A licia costce } Pane. 
Faurot (66) has an elaborate paper on the anatomy, histology, and 
development of Actinians. 
Fuchs (70) discusses the nature of the peculiar tubular bodies similar 
to Oylindrites , from the E. Mediterranean, and considers them to be 
Cerianthus tubes in which a Phoronis has taken up its abode, and which 
have since become filled with mud. 
Girty (77) gives an account of the development of the corallum in 
Favosites forbesii , var. occulentalis. 
Hickson (107) revises the genera of Alcyonaria Stoloni/era , and 
proposes the following classification : — 
Order Alcyonaria. 
1 . Protoalcyonaria . 
2. Stolonifera . 
3. Alcyomcca . 
4. Gorgonacea . 
5. Pcnnatulacea 
Hickson (109): Development and (110) anatomy of Alcyonium 
digitatum. 
Holm (114) : Spongodes. 
Lacaze-Duthiers (133) : Flabellum anthophyllum. 
LindstrOm (138) states that Prisciturben , Kunth., is a composite struc- 
ture consisting of a Stromatopora and of a Cyathophyllum. 
Eqeb (140) controverts certain statements of Nagel’s with respect to 
the psychical phenomena exhibited by Actinians. 
McMurricii (150) proposes a new classification for the Actiniaria , and 
describes many new species from the West coast of Central America. 
Volz (207) describes the microscopic structure of the septal appa- 
ratus in the genera Thecosmilia , Montlivaltia } Ompkalophyllia , and 
Myriophyllia. 
Wentzel (209) : Structure of Zoantharia tabulata. 
Alcyonaria ; Studer (195, 196), Hornell (116). 
Ilaimeia , Hartea. 
i Fam. 1. Clavulariulce. 
( Fam. 2. Tubiporidce. 
. Fam. 1. Alcyonidcc. 
1 Fam. 2. Ilelioporidai. 
&g. } Ac. 
i Section I. Sclcraxonia. 
| Section II. Holaxonia. 
Fam. Pennatulidai. 
