78 Mr. R. Kirkpatrick on the 



From the mode of development of the tubular peristome 

 and pore it is clear that G. lyncoides has no affinities with 

 the Microporellida3 or Porinida?, hut belongs to the Myrio- 

 zoida3 or Scliizostomatous group of Escharida3. 



A supraoral bridge is formed in Ge2)hyro2)hora in the same 

 manner as in Oigantopora. 



The presence of this bridge, formed in the manner indi- 

 cated, may scarcely seem a character of sufficient importance 

 on which to found a genus. 



Genus Rhynchopora. 

 Rhynchopora bispiiiosa, Johnst. 



In the Mauritius form the oral avicularium is only present 

 on a few cells. 



The coecium is marked in front by a less thickly calcified 

 area semicircular in shape. 



Until I saw the oral avicularia the specimen seemed to me 

 to be a new species of Schizoporella. 



Family Escharidse. 

 Genus Lepralia. 

 Le'pralia gigas^ Hincks. 

 Lepralia c/igas, Hincks, Ann. & Mag. Nat. Hist. Marc-li 1885, pi. ix. 



The Mauritius form is only loosely incrusting. The dorsal 

 surface shows the zooecia separated by broad bands ; the 

 square areas marked out are pitted by numerous large punc- 

 tures. 



Loc. Trincomalee, Mauritius. 



Lepralia judeXj n. sp. (PI. VIII. fig. 4.) 



Zoarium incrusting. Zooecia radiating from a centre, 

 rhomboidal, narrowed inferiorly, surface flattened ; walls 

 opaque, rough, granulose ; orifice oblong^ broader below than 

 above ; round the orifice, laterally and behind, a thick semi- 

 circular wall, extending on each side as far as the lower border 

 of the mouth ; on the upper border of the wall from fifteen 

 to twenty marks, indicating the presence of as many stout 

 spines in the perfect state. Avicularia none. Ooecia ? 



Leiyralia Poissonii^ Audouin. (PI. VIII. fig. 1.) 

 ? Escharella setigera, Smitt, Flor. Bry. pt. ii. pi. x. fig. 206. 

 This species is figured in Savigny's ' Description de 



