CORALS FROM THE PERSIAN GULF. 



1035 



septa beset with minute granulations arranged in radia,] ridges. 

 An incomplete single crown of pali before the septa of the third 

 cycle. Columella fascicular. 



Text-fig. 220. 



I IV 



Diagrammatic plan of the septa of Agelecyathus persicus. Septal orders represented 

 as in text-fig. 217. Six detached pali are represented, i. ii, iii, iv, septa of the 

 first, second, tbird and fourth cj'cles ; p., pali. 



A single specimen consisting of five individual corallites arising 

 from a common encrusting base. 



Locality. From Cable 60 miles S.W. of Bushire, Persian Gulf. 

 Depth 30 fms. 



Before some of the septa of the third cycle there are distinct 

 upwardly projecting lobes corresponding to pali. Thus in the 

 calice figured (text-fig. 220) there are six such pali opposite six 

 septa of the third cycle, three at each end of the long axis ; 

 there are two less conspicuous lobes before two septa of this 

 cycle, while the remaining four septa of the third cycle have 

 no trace of any such lobe. Milne-Edwards and Haime [29] 

 divided the family Turbinoliidse into two sub-families — the Tur- 

 binolinse without pali, and the Caryophyllinee with pali ; and this 

 classification has found more favour with subsequent authors than 

 Duncan's [15] later classification, which divided the family into 

 TurbinoUclce simplices, TurhinoUdce gemmantes, and Turhinolidm 

 reptantes, according to their habits of growth and reproduction. 

 This coral affords evidence in favour of Duncan's classification ; 

 indeed it would be difficult to know in which of Milne-Edwards' 



