The al)ov(' (Icsciiptiou of tlic anatoiiix and dcx clopnuMit 

 (>\: kA/ci/o/uiiiii (//(//ftifuiii is com [)il(Ml ciilii-clx' iroui niv own 

 observations. A considerable part of the woik has already 

 been published in a papei' which ai)peared in the (hiarttnly 

 •loiivnal of Microscopical Science. A'ohmie -iT, and the 

 leadei- may be referred to this for further information on 

 the histohigy of the species. 'I'lie acc(»unt of the chemistry 

 of the mesogloea was published in the same volume by 

 Mr. Brown. 



An important ])aper has recently been published by ^ir. 

 (t. C. Bourne in the " Transactions of the Liniuean 

 Society," Vol. VII., pt. 10, on the genus LrnuHi/in, in 

 which the term " Anthocodia," which has Ixmmi adojjted 

 in this memoir, and others which will be useful to 

 students of the Alcyonaria are introduced for the first 

 time. 



Exi'LAN.VTlOX OF J'llE I'l.VTES. 



Plate I. 



Tig. 1. A small specimen of AJri/(/iuinn <//(//fi//iiiii, L., 

 natural size, killed in such a maniKu- that 

 some of the anthocodiie {i.e., ])olyp-lieads) 

 have remained expanded Avhile the others aie 

 completel}- or wlndly retracted. 'Ihe antho- 

 codia' on the knob seen at the right hand side 

 of the drawing, for example, are retracted, 

 and the star-like depressions indicating their 

 positions are the "false mouths," as explained 

 in the text. This figure is diawn from a 

 sf)ecinien taken at Port Erin. 



Tig. 2. Another specimen of Alcijoniion (Ugitntuni 

 drawn in outline and reduced about ^ diani. 

 to show the blunt lobe-like processes that are 



