MUSEUM OF COMPARATIVE ZOOLOGY. 205 



Cladocora debilis M. Edw. & H. 



Station No. 12. Lat. 24° 34' N., Long. 83° 16' W. 36 fms. 

 " " 11. Lat. 24° 43' N., Long. 83° 25' W. 37 fms. 



ANTHEMIPHYLLIA Poort. gen. nov. 



Corallum free or pedicellate, with rudimentary epitheca, no columella ; 

 septa thick and having the edge beset with transversely flattened processes. It 

 is allied to Leptophijllia and Montlivaultia, but differs from them chiefly by the 

 mode of division of the border of the septa, which in these generally consists in 

 simple spines. 



Anthemiphyllia patera Pourt. spec. nov. 



Plate I. Figs. 14, 15. 



Short turbinate or saucer shaped, free, but showing former adherence to 

 small fragment of shell. Epitheca very rudimentary. Costa) distinct to the 

 base, covered with small spines or sharp tubercles. Calicle circular, fossa shal- 

 low. Six complete systems of septa, four cycles. Those of the first, second, 

 and third cycle nearly equal, the fourth much smaller. The septa are broadest 

 about the middle, becoming thinner towards the centre and circumference of the 

 calicle. Their border is thickly beset with spiny flattened processes, standing 

 at right angles to the plane of the f^eptum. Towards the centre the septa be- 

 come indistinct and the processes smaller and denser, forming a false columella 

 without definite limits. The interseptal spaces have a tendency to become 

 filled up by the endotheca, particularly near the centre. 



The structure of the spines of the septa is very diff"erent from that of the or- 

 dinary Lithojjhyllidce, where they are sharp and flattened in the plane of the 

 septum. 



Height of specimen, 5 mm. ; diameter, 9 mm. Only one was obtained. 



Station No. 16. Off Havana. 292 fms. 



Montlivaultia poculum Pourt. spec. nor. 

 Plate I. Figs. 21,22. 



Conical, free ; epitheca thin, costce finely granular. Calicle very slightly 

 elliptical, fossa deep. Septa alternately large and small, fifty-eight in number, 

 the twenty-nine larg;; ones equal and all reaching the centre, very little exsert 

 and sparsely granulated, and showing no difference of cycles or distinct sys- 

 tems. The small septa reach only half-way. The upper edge of the septa is 

 entire. The larger ones gradually become lobed, until towards the centre of the 

 calicle they send forth a number of blunt lobes, filling the bottom of the fossa. 

 No columella. The interseptal chambers are deep ; the dissepiments cannot be 

 made out without a .section. Height, 3 cm.; diameter of calicle, 22 mm. 



This coral was found among the specimens dredged by the late Dr. Stimpson, 



