388 Mr. W. King on some Families and Genera of Corals. 



allowed me to examine during raj^ short stay in London. This 

 instance of a sexual glandular apparatus in the Cheiroptera does 

 not however stand isolated, since the observations of the late 

 Dr. J. Natterer have made us acquainted with a gland on the 

 males of at least many species of Dysopes, provided with an open- 

 ing, and situated on the throat. 

 Copenhagen, Sept. 1848. 



XLIII. — Gn some Families and Genera of Corals. By William 

 King, F.G.S. France. 



Fam. CyathophyllidjE, Dana. 



Gen. Pohjcoelia*, King. 



A (?) simple Cyathophyllidia. Form conical. TValls solid. Pri- 

 mary vertical jilates converging to within a short distance of the 

 centre. Secondary vertical plates reaching about half way to the 

 centre. Transverse plates horizontal, at irregular distances from 

 each other, and extending quite across the cavity. Chambers or 

 lamellar interspaces capacious com])ared with those of other Cya- 

 thophyllidias. Reproduction within the polypiferous cup. 



Type, Turbinolia Donatiana, King, ' Catalogue of the Organic 

 Remains of the Permian Rocks of Northumberland and Dur- 

 ham,^ p. 6. 



This genus differs from most Cyathophxjllidce in its struc- 

 tural characters ; but it appears to be nearest related to Cyatho- 

 phyllum, taking as its type the (?) tri-areal C. plicatum of Gold- 

 fuss, which is the first species described under the genus (vide 

 ' Petrefacta,' pi. 15. fig. 12). 



Fam. Fenestellid^, King. 



Setting down as the type of Fenestella the F. antiqua of Lons- 

 dale, it is proposed to place all those palaeozoic genera in the pre-, 

 sent family agreeing with this genus in being reticulated, and 

 having the cellules planted on a basal plate composed of vertical 

 capillary tubuli as first discovered by Mr. Lonsdale. Besides the 

 typical genus above-named, Fenestellidce includes the Polypnra 

 and Ptylopora of Mr. M'Coy, and the two genera next to be 

 described. 



Gen. Synocladiaf, King. 



A foliaceous or frondiferous infundibuliform Fenestellidia. 

 Fronds consisting of numerous connected stems or ribs. Stems 



* Etym. 77oXvs, many ; koiXos, a cavity, 

 t Etym. (Tvv, with ; (cXaSos, a branch. 



