ALLOPORA. 37 



CRYPTOHELTA M.-Edw. & H. 



Cryptohelia Peircei Pouut. 



Cri/plohelia Peircii Pouut. Bull. j\lu!!. Comp. Zool., No. G. 



Plate n., figs. 18 and 19. 



Corallum arborescent and subfla))cllate, irregularly dicliotomous, 

 slender, finely striated, with minute pores in the stria^. Calicles sub- 

 pedicellate, of a larger diameter than the stem, all facing to one side. 

 Septa twelve to sixteen, not extending far into the calicle. Columella 

 not visible. The lower border of the disklike expansion of the calicle 

 prolonged into a lip folded over so as to hide the fossa. Some of 

 the calicles inflated and globular, perhaps from the presence of para- 

 sites. 



Dimensions : height 2 cm. (broken) ; diameter of stem 2.5 mm., of 

 branchlets 1 mm., of calicles 2 mm. 



Off Havana, in 270 fathoms. 



Off Sombrero Lighthouse, in 2G2 fathoms (one specimen, dead.) 



Off Bahla Honda, in 324 fathoms (livin-:). 



In 600 fathoms, lat. '31° 32' N., long. 78° 20' W., fragments brought up by the lead. 



ALLOPOEA EiiRBG. 



Allopora miniata Pourt. 



Alliipora miniala PouRT. Bull. Miis. Comp. Zool., No. 7. 



Plate III, figs. 14, 15, and 16. 



Corallinn branching, flabellate, the main trunk rather massive and 

 flattened. Surfixce finely and sharply granular, porous. . Branchlets 

 thick and obtuse. Calicles irregularly but densely distributed on one 

 surfiice of the branches, obsolete on the main trunk. Small amjiulla) 

 abundant between the calicles on the younger branches. Calicles 

 slightly prominent, fossa deep, columella large, spherical, hirsute, deep- 

 ly immersed. Septa from seven to ten, generally eight. Intei'septal 

 chambers comparatively large, with very distinct hirsute tertiary septa 

 enclosed, giving to the whole when magnified the appearance of a 



