ALCYONARIA OF SIND. 87 



Genus LEPTOEIA, M. M. & J. H. 

 1. Leptoeia coNcaENTEiCA, Duncan. Plate XXIII, Figs. 1, 2. 



The corallum is large, flat, circular in outline, broadly pedunculate, thin at the 

 edges, and rather concave centrally above. 



The series are very long, and many form almost perfect circles one within the 

 other, so that the surface presents the appearance of a number of furrows and ridges 

 arranged in irregular concentric circles. 



The ridges are sharp and equal, the valleys are broad and deep, and each of the 

 series is uninterrupted by calices. The columella is very small, but it is clearly lamellar. 

 The septa are small, alternately larger and smaller, the first kind reach to the axis 

 of the valley and enlarge there, the smaller come down to it more or less. Buds of 

 an Hi/dnophora have settled themselves in some of the series. 



The peduncle is short and broad ; the base is marked concentrically by a ridge ; and 

 there appears to have been an epitheca. 



Height of the coral IJ inch ; breadth originally 8 inches. 



Length of series 10 inches, 8 J inches, to about 3 inches ; breadth about ys iJich. 



Locality/. Dumbar range, south-west of Tong, Gaj series (Survey-number G -5^-) ; 

 also at Maliri, south of Chotra, in the Khirthar or Nari series (Survey-number G -^i-). 



Illustrations of the Species in Plate XXIII. 



Fig. 1. The corallum: natural size. 

 2. Some septa: magnified. 



MONTICULASTE^A, gen. nov. 



The corallum is massive or foliated, pedunculate, irregular at its upper surface, an 

 the base is covered with crowded radiating costse. The septa are in very irregular 

 small series, so that each colline is small and either pointed or very short, and hence 

 the series often present a papillary appearance. The septa are small, numerous, do not 

 touch those of the other side of the axial space, and are united by a highly developed 

 endotheca. There is a columella which is continuous around the coUines ; it is lamellar, 

 but convex above, and is readily worn away. 



This genus is a Hydnophora with a columella and with non-continuous septa. 



1. MoNTicuLASTR/EA iNSiGNis, JDuncan. Plate XXVI, Figs. 1-3. 



The corallum is very large, thick in some parts, and thin at the edges. The small 

 close collines are very numerous, very irregular in their size, not in any regular lines, 

 ^nd are short. The colline edge is short. The ^epta, alternately long and short and 

 large and small, are slender and close ; probably three cycles of them exist around the 

 largest colline. 



The columella is well developed. The costse are exceedingly numerous. 



Height of the corallum 2^ inches ; breadth about 14 inches. 



