50 THE FOSSIL CORALS AND 



Length of calice l^g inch. 



Locality. Three miles west of Lynyan, Eanikot group. Survey-number G fa^*- 



niustrations of the Species in Plate VII. 

 Fig. 8. Part of the epitheca: magnified. 

 9. Septa : magnified. 



A variety of this type has a larger corallum, nipped in at the sides, and with a 

 nearly rounded-off base, with barely a vestige of a peduncle. The costal lines are 

 visible, underlying the epitheca, or more or liess uncovered by it. 



It is from the same locality. 



3. TuKBiNOSERis Haimei, Dwncan. Plate VII, Figs. 4-7. 



The corallum is simple, short, conical, turbinate, compressed, and has a mi^ch-bent 

 and incurved pedicel. The calicular surface is long, elliptical, slightly reentering at 

 one spot, and on an even plane. The margin is rounded ; the axial fossa is long and 

 deep, and the septa dip down into it. 



The septa are numerous, close but not crowded, slightly exsert (especially the 

 larger), and alternately large and small. There are numerous arrangements of eight 

 septa, one being large and long, an intermediate shorter, two others are on either side, 

 less large and long, and there are four small and short intermediate laminse. There are 

 six cycles of septa. 



. There is no columella, and the synapticulse are rather numerous. The costse are 

 markedly alternately large and small, prominent and low, and they are so over the 

 whole of the inferior portion as well as above. 



The direction of the costse is peculiar : on the surface opposed to the curvature 

 of the pedicel they are parallel, and reach in right lines fi:om the calicular margin to 

 the pedicel, converging gradually and diminishing in number; but the costse of the 

 sides of the coral do not converge to the pedicel, they pass obliquely backwards and join 

 the outer costse of the portion just mentioned along a broad line. The costse are most 

 prominent near the margin; a few synapticulse exist between them. There is no 

 epitheca. 



Length of the calice 1^^ inch ; breadth of the calice 1 inch. 



Height of the coral -^ inch. 



Locality. Three miles west of Lynyan, Ranikot group. Survey-number G f|-ff ■ 



Illustrations of the Species in Plate VII. 



Fig. 4. The corallum, natural size, in outline. 



5. Side view. 



6. The septa: magnified. 



7. The junction of the costse : magnified. 



4. TuRBiNOSBEis Indica, Duncan. Plate VII, Figs. 1-3. 



The corallum is simple, short, conical, slightly curved, and pedicellate below, and 



